Hey Tony, thanks for stopping by. Your video aired first and I was worried I may have left a bad impression with the subject I picked. Together, I think we presented some great stuff. Take care.
It’s been said that “Great minds think alike”. Loved both presentations! Thoroughly enjoy both your channels and you’ve both taught this old dog some new tricks. Excellent work my friends.
PSA: For all the folks that have been asking about the "Norbide" dressing stick Joe is using - be aware that there are three different compositions for these stones. Aluminum Oxide / Silicon Carbide / Boron Nitride. For the AO tool room cup wheel being used here, you will want to use the *** Boron Nitride *** stick (most expensive) and NOT the (lesser expensive) AO or SC versions. The dressing stick used needs to be compatible with the composition of the grinding wheel it is being used on. For what it's worth - just my $0.02
Man I am SMILING from Ear to Ear lol I have no words!!! you ARE the MAN !!! Thanks Joe I too would like to see how to cut gears using this set up I know it is a lot of work for you to make these GREAT videos but believe me we ALL APPRECIATE it!! As Always TWO THUMBS UP Sir!!
Noticed a comment by someone pissing on ToT... How anyone could dislike ToT is beyond me. His videos present this stuff in a fun way that people who aren't machinists, welders, etc learn about what goes into making parts like this. Your channel takes it to a higher level of precision which is great, but his bridges the gap between the uninitiated and the high end hobbyists and probably inspired a few people to find their way into trade school to pursue this stuff, or pick up a lathe, mill or welder and other tools to begin their journey.
TOT is one of my personal favorite channels and has some of the best production value of any creator in my opinion. Jimmy Diresta is another guy that produces fantastic material and video's.
Great video Joe, don't worry about overlapping content, everyone brings fresh stuff to the table even when they're making identical parts (which these ones weren't👍) even obvious (to you) things like the effect of dishing the face, or using a square broach to cut a much larger square hole light bulbs in viewers' minds.
After seeing this video, I made a broach for a key way (3 mm width) which need to be fit inside a conical rotor of a ignition system. The dimensions and accuracy were very easy to be archived with this method! Thank you very much Joe! Very useful this videos. Please keep continue!
That’s what I love about this channel is learning other ways to achieve a result without spending a lot of cash on expensive rotor broaches or tools 👍🏻
Another top notch video. I'm glad you and Tony both released similar videos. There is more than 1 way to skin a cat and its good getting different perspectives on the same topic. Especially from guys who know what they talking about and as a TH-cam learner the info received on my end is invaluable. So thanks. Look forward to seeing the next video.
My Grandpa was a machinist at the Rock Island Arsenal from the 40's to 1960. I have a box of stones he used. Among them was a stone that looks like your Norbide. Until now I had no idea of its use. Unfortunately he passed when I was 12 so I never had the chance for him to mentor me. Thanks for all the work you put into sharing your skills.
I used to surface grind on my mill. Cup wheels are good for blanchard grinding which can be done on the mill. Helps to tape cloths around where the grinding dust will fall. Very nice work and no tearing of the broached hole.
Great information Joe. FYI....the other day I was using my spin index for a project and it was slipping. After the completing the work I performed 3 improvements to the spin index. (1) the retaining collar on the spindle with the three set screws were not holding so I drilled/tapped three more equally spaced holes for a total of 6 set screws. (2) I machined off 0.125 inches at the end of the spindle at the handle end to allow deeper thread grip (for the collet) and deeper handle mount for the screws. (3)The front degree wheel is held on by only the threaded spanner ring which the thumb pin indexes with. This surprised me because a heavy cut could cause the work to spin independent of the degree wheel which relies on the thumb pin and large thumb screw on top. I machined a 1/8th slot on the front retaining shoulder behind the threads for a 1/8th key and made a 1/8th slot in the ID of the degree wheel to match. The degree wheel is now locked to the spindle. I hope this is explained well.
Hi Joe, I know this was a month ago but you were right, I did buy a Norton cup wheel right after... and today I made the arbor and used it for the first time. Used it to flatten the top of a custom HSS cutter. Great videos they really help me.
I don't comment much on machining because I don't know enough, but I was compelled to mention something - it's not stepping on toes at all (and I know you were respecting territory as it were - that's not lost on me) but I watch both of you guys and if there's one thing that I've learned about learning is to listen to more than one authority because of the differences of the methods and styles of explaining. Having one subject explained by two or more (the caveat is that the two must know what they're talking about else too much 'noise' is created) is the best way to learn and have it stick into memory.
I've seen people suggesting that a zero rake (AKA flat ended) cuts just fine, and avoids both the geometry issues you mention, and some grinding complexity.
More good stuff....! I have always wondered why you can't do simple grinds on a mill. Now I know you can. Gotta just remember to cover up to protect from the grinding dust.... I like this method for simple broaching! Thanks for sharing your STUFF.!!!.
2 of my favourite channels. Yours and TOT. TOT is entertaining but not always practical. I don't have a grinding machine for example. Your channel is always practical and scientific. I can see a use for a broach for me to square up corners for rectangular holes in panels for electronics projects.
Totally an awesome tip.... This will help out in a jam. We build in supper short time frames. Some times you just can't wait for special to be shipped in. Just made your tooling.
Yep, time to buy a Cup Wheel. Who’d of thought it could be that easy. I would have never thought of doing it that way, at least at the level of Machining I’m at right now. By learning more everyday thanks to People like you. Thanks
We had Ampco-18 boring bar support bushing for semi and finish iboring operations on engine block. The bushings had slots for the boring bars cutting tools. The old timers always used a slotter. One day a retiree cam in to find out some pension Information and saw a guy doing this in a Bridgeport and his jaw dropped. But the we didn't have Bridgeport mills until after he retired aside from a couple of Trees everything was K&Ts. The K&T rotary head mills were really trick in their day.
I watch this old tony. I saw his square hole tool. Cant afford it. Yours i can afford. I love seeing different ways to do the same thing. I actually made a square hole broach, actually a corner broach for a project used a surface grinder i made a square cutter round to fit in collet. Starting round and going square would have been way easer. Awesome lesson from you. Again. I am learning alot from all of you guys. Keep them coming!!! Please!!!
This is a great video. For those of us that don't have a surface grinder or room for one, your thoughts on flat grindinf surfaces on vise jaws and similar parts for example on a mill using a cup. Obviously being careful to mask of ways etc.
Clickspring also has a good video on another kind of square broach, suitable for smaller holes. Between the three of you, I think you've covered all the types I'm familiar with.
Good video, I'll be spending time in the tool room for the next month so this is good practice material. Also one of my journeyman was using a spin indexer the other day on a surface grinder, but only wanted to call it a "whirligig". Thanks for the content, the stuff I am learning on here I am trying to utilize in the shop. We don't use the machines full time, which saddens me since I thought as a die maker apprentice I'd be doing more with them.
Thanks Joe, Bought a grinding cup, made an arbor and I am grinding tools on my mill. Much better finish and accuracy albeit additional setup time involved.
I watched the ToT video, I was amused and impressed. I watched your video and I was thinking even I could do that; infinitely more useful. Thanks for sharing!
You can use a radial arm drill to grind with as well.I have used one to put a 36" ground radius on a steam engine expansion link die block.Very effective.
Yet another top notch class! Thank you again. Joe, I can't tell you enough how much I get from your videos. I subscribe to this old tony also..... Gotta love his dead pan humor....
@@joepie221 Hi Joe, Great video as usual. I don't have a surface grinder, but I do have a Mill, so now I can make a rotary broach. I watch your videos to learn, but I watch ToT for the humor & I do learn something at the same time. We need to see your video 1st to learn how to do something & then to curb our frustration of being a beginner watch the humorous version by ToT. LoL
Hey Joe, wasn't able to finish the video this AM; had to wait until I got home... bad enough to have to work inside on a beautiful Friday afternoon, but there was a fresh Joe Pie vid waiting Funny thing, just re-watched the TOT video on rotary broaching this last week... I can't imagine how your video could be considered as stepping on his - a really good extra chapter on the subject. Really appreciate you taking the time to put these up!
@Joe Pie - there is more than one way to skin a cat which is why it is my practice to watch you AND TOT AND Abom79 for ideas. Due to your different experiences and perspectives it gives a lot more information than just one perspective. Blessings and thank you for taking the time to produce such informative videos! :o)
I have been grinding tools, with the same wheel mounted on my face cutter arbour on my mill drill, for years now. Very effective, especially partnered with a dividing head.
The vidio was very good and I brought a hole case of the same cup grinding wheels years as you have years ago on ebay very cheap and still have them, I brought them for mly end mill sharpener.
I use a similar tool to make almost square blind holes in 303 stainless steel rod on a flypress. The sides of the hole still show some of the pilot hole. The job is done in one hit because the steel work-hardens. The tool has to have slight radius on the corners, or they chip straight away, and after experimenting with HSS and o1 steel I settled on plain old carbon drill rod tempered to dark straw. The tools last 50-60 pieces before chipping, it's a tough job for them.
Thanks so much for expanding my knowledge. Regret passing on those cup wheels at a recent auction. Definitely adding one to my tool set asap. Never would have thought about cutting gears this way even though I've seen them hobbed.
Great video, excellent illustration. I realize you have to consider allowing room for camera angles for us to see. Probably goes without saying! But a shorter tool bit further up into collet would cut down on tool deflection. In any case, great results, I would use this process. Thanks for sharing!
Good job, I learned something here. Never thought of grinding with a cup wheel on a Bridgeport, probably because my shop has a surface grinder. Keep 'em coming.
This reminds me of some grinding I done on some drill bits. For anyone using the lathe or drill press, put your drills in a collet and go to surface grinder and grind some flats on your drills 120 deg. apart. You will not have any problems with the drill turning in the chuck. Most guys machining might know this already. GO VOLS !!!
I always learn cool tricks from you, Joe 👍🏽. A new way to use my Bridgeport Mill👌🏽. I have the same Spindex as well. A few months ago I had to make an aluminum fuel valve handle with 1/4” square hole. I drilled a 1/4” hole then made a tool and single pointed to square it up on the Bridgeport. Came out very nice but this would’ve been a much better way. Thank you. I watch ToT too.
Dear Joe, thank you for another really useful video. As the owner of a small mill and a spare cup wheel I could try this. the finish was just superb. Aluminium (limey) is however pretty mushy stuff. Would this process be possible with grey cast iron? Would it not be easier to use a square to tram the broach? (Forgive me I used to be a cabinet maker and set hollow mortice chisels that way off the fence). Finally, this is the kind of job to which the hand powered shaper would be admirably suited. (Wish I had one). Thanks again. Tony's video was different enough not to cause duplication.
Might want to build a guard to protect you from a grinding wheel failure. Years ago I had a brand new wheel explode on first start-up. I see a 360° danger zone at chest level.
Certain tools, machines, techniques, always seems to run in trends among YT creators and fb groups. I wouldn't worry too much about repeats. You might give someone the clue or unique idea they need to get around a problem.
Joe, I have to be inventive too. I had to split a pair of bosses that were being clamped by 3 x 3/4 unf cap screws. They were like a large dog bone. 2 1/4'" bore on a 4 3/4" OD and was 3 3/4' long on each end at 16" centres. I was making a giant joining link as on a chain except it was for a reversible plough mechanism. I set the boss in my mill vice. I made up a mandrel to hold a drop saw blade. I used a partly worn drop saw blade (abrasive type) and simply used it as you would use a $200 slitting saw. It was a wee worry because there was no guarding but I was conscious of not overloading it and having a blowout of the wheel. Worked a treat, it fact was prob quicker that a HSS slitting saw. Hardest part was deburring the ragged edge because the steel was of good quality. When i welded the bosses on to the thick wall tube, I lit a decent fire inside a 55 gal barrel with some nice firewood I had, dropped in the dog bone links and kept it stoked up for a good while. I covered when i went home and in the morning removed. It was just able to be handles so I think I stress relieved it quite nicely. I know it machined beautifully so that is always a good sign. I live and work well out of town so have to make do.
Thanks for suggesting the Norbide stick. I finally got one, and it wasn't remotely cheap. That said, it does a neater straighter job than a brick or a rock, which makes my job easier.
nice work as always Joe! Sorry if I stepped on your toes here. Happens! But always great to have options.
Hey Tony, thanks for stopping by. Your video aired first and I was worried I may have left a bad impression with the subject I picked. Together, I think we presented some great stuff. Take care.
It’s been said that “Great minds think alike”. Loved both presentations! Thoroughly enjoy both your channels and you’ve both taught this old dog some new tricks. Excellent work my friends.
You all great guys you are kind of sources here thank you all😃😀
The both of you should do feeds and speeds! I love the way both of you explain everything!
More = better
A mill is more than a mill :)
Thoroughly enjoyed!
I think I will wait a few days releasing my spline-slotting video, haha :D
PSA: For all the folks that have been asking about the "Norbide" dressing stick Joe is using - be aware that there are three different compositions for these stones. Aluminum Oxide / Silicon Carbide / Boron Nitride. For the AO tool room cup wheel being used here, you will want to use the *** Boron Nitride *** stick (most expensive) and NOT the (lesser expensive) AO or SC versions. The dressing stick used needs to be compatible with the composition of the grinding wheel it is being used on. For what it's worth - just my $0.02
Forgive my ignorance I'm now to grinding. Could you use a diamond nib dresser?
@@vincentgizdich2842 Yes.
This opens up a ton of capability! Awesome video!
Man I am SMILING from Ear to Ear lol I have no words!!! you ARE the MAN !!! Thanks Joe I too would like to see how to cut gears using this set up I know it is a lot of work for you to make these GREAT videos but believe me we ALL APPRECIATE it!! As Always TWO THUMBS UP Sir!!
Noticed a comment by someone pissing on ToT... How anyone could dislike ToT is beyond me. His videos present this stuff in a fun way that people who aren't machinists, welders, etc learn about what goes into making parts like this. Your channel takes it to a higher level of precision which is great, but his bridges the gap between the uninitiated and the high end hobbyists and probably inspired a few people to find their way into trade school to pursue this stuff, or pick up a lathe, mill or welder and other tools to begin their journey.
TOT is one of my personal favorite channels and has some of the best production value of any creator in my opinion. Jimmy Diresta is another guy that produces fantastic material and video's.
Great video Joe, don't worry about overlapping content, everyone brings fresh stuff to the table even when they're making identical parts (which these ones weren't👍) even obvious (to you) things like the effect of dishing the face, or using a square broach to cut a much larger square hole light bulbs in viewers' minds.
After seeing this video, I made a broach for a key way (3 mm width) which need to be fit inside a conical rotor of a ignition system. The dimensions and accuracy were very easy to be archived with this method! Thank you very much Joe! Very useful this videos. Please keep continue!
I watched both Tony’s and Joe’s, and both are equally useful, and yet different.
That’s what I love about this channel is learning other ways to achieve a result without spending a lot of cash on expensive rotor broaches or tools 👍🏻
Thats the name of the game for a small or new shop. Glad you like the material. Hit that sub button for me !!
Some how I doubt if This Old Tony will be insulted. Pretty cool technique, the wiping oil of the ways and vacuum is really good. Thanks
Another top notch video. I'm glad you and Tony both released similar videos. There is more than 1 way to skin a cat and its good getting different perspectives on the same topic. Especially from guys who know what they talking about and as a TH-cam learner the info received on my end is invaluable. So thanks. Look forward to seeing the next video.
I enjoy seeing how others do it. Together we all get smarter.
My Grandpa was a machinist at the Rock Island Arsenal from the 40's to 1960. I have a box of stones he used. Among them was a stone that looks like your Norbide. Until now I had no idea of its use. Unfortunately he passed when I was 12 so I never had the chance for him to mentor me.
Thanks for all the work you put into sharing your skills.
My pleasure.
I used to surface grind on my mill. Cup wheels are good for blanchard grinding which can be done on the mill. Helps to tape cloths around where the grinding dust will fall. Very nice work and no tearing of the broached hole.
Definitely contain the dust.
Hey Joe, I watch your channel for education, and This Old Tony for humor. He really cracks me up. I love you both, each in your own little way...
Great information Joe. FYI....the other day I was using my spin index for a project and it was slipping. After the completing the work I performed 3 improvements to the spin index. (1) the retaining collar on the spindle with the three set screws were not holding so I drilled/tapped three more equally spaced holes for a total of 6 set screws. (2) I machined off 0.125 inches at the end of the spindle at the handle end to allow deeper thread grip (for the collet) and deeper handle mount for the screws. (3)The front degree wheel is held on by only the threaded spanner ring which the thumb pin indexes with. This surprised me because a heavy cut could cause the work to spin independent of the degree wheel which relies on the thumb pin and large thumb screw on top. I machined a 1/8th slot on the front retaining shoulder behind the threads for a 1/8th key and made a 1/8th slot in the ID of the degree wheel to match. The degree wheel is now locked to the spindle. I hope this is explained well.
Hi Joe, I know this was a month ago but you were right, I did buy a Norton cup wheel right after... and today I made the arbor and used it for the first time. Used it to flatten the top of a custom HSS cutter. Great videos they really help me.
Glad to hear it.
I don't comment much on machining because I don't know enough, but I was compelled to mention something - it's not stepping on toes at all (and I know you were respecting territory as it were - that's not lost on me) but I watch both of you guys and if there's one thing that I've learned about learning is to listen to more than one authority because of the differences of the methods and styles of explaining. Having one subject explained by two or more (the caveat is that the two must know what they're talking about else too much 'noise' is created) is the best way to learn and have it stick into memory.
Its nice how you guys all acknowledge each other. I have now ordered up myself a cup wheel just for this purpose.
Tell him how to make it ?
I've seen people suggesting that a zero rake (AKA flat ended) cuts just fine, and avoids both the geometry issues you mention, and some grinding complexity.
So nice to see the mutual respect between two great engineering TH-camrs.
You are one of my most respected teachers.
Thank you for your support. I hope my material makes you a better and more comfortable machinist.
Great stuff 👍 Thank you for sharing yours amazing knowledge. I would say that ToT is a funniest learning channel I've ever seen.
His editing work is top notch.
Excellent video,its amazing to see what can be done on a mill when you " think outside the box" thanks Joe!.
More good stuff....! I have always wondered why you can't do simple grinds on a mill. Now I know you can. Gotta just remember to cover up to protect from the grinding dust.... I like this method for simple broaching! Thanks for sharing your STUFF.!!!.
That's very cool. I've always admired the tool and die making part of machining. Thanks for sharing!
Hey Chubbza5, always good to see you checking in. Thanks for the comment. I hope you enjoyed the material.
2 of my favourite channels. Yours and TOT. TOT is entertaining but not always practical. I don't have a grinding machine for example. Your channel is always practical and scientific. I can see a use for a broach for me to square up corners for rectangular holes in panels for electronics projects.
Thanks.
Totally an awesome tip.... This will help out in a jam. We build in supper short time frames. Some times you just can't wait for special to be shipped in. Just made your tooling.
It's a subject matter that brings me to these videos, it's the little whistles and sound effects that keep me watching, love it
Yep, time to buy a Cup Wheel. Who’d of thought it could be that easy. I would have never thought of doing it that way, at least at the level of Machining I’m at right now. By learning more everyday thanks to People like you. Thanks
We had Ampco-18 boring bar support bushing for semi and finish iboring operations on engine block. The bushings had slots for the boring bars cutting tools. The old timers always used a slotter. One day a retiree cam in to find out some pension Information and saw a guy doing this in a Bridgeport and his jaw dropped. But the we didn't have Bridgeport mills until after he retired aside from a couple of Trees everything was K&Ts. The K&T rotary head mills were really trick in their day.
Excellent. Thanks Joe. Nice to see respect between TH-camrs.
This is an excellent idea - no need for special tool holder as in rotary broaching.
You both are favourites of my machining YT content.
Always worth watching.
Learn something every time.
Thank you
Really enjoyed this one, Joe. Pretty slick trick and what great results!
Taught the dog a new trick today. Thanks!
Another great set of ideas. Not only for making broaches but also some good ideas on using the mill as a T&C grinder with a little care.
This might be a good way to put flats on the shanks of some of my drills to make them 3 flat shank drills without the high price.
I watch this old tony. I saw his square hole tool. Cant afford it. Yours i can afford. I love seeing different ways to do the same thing. I actually made a square hole broach, actually a corner broach for a project used a surface grinder i made a square cutter round to fit in collet. Starting round and going square would have been way easer.
Awesome lesson from you. Again. I am learning alot from all of you guys. Keep them coming!!! Please!!!
This is a great video. For those of us that don't have a surface grinder or room for one, your thoughts on flat grindinf surfaces on vise jaws and similar parts for example on a mill using a cup. Obviously being careful to mask of ways etc.
You never cease to amaze me!
Clickspring also has a good video on another kind of square broach, suitable for smaller holes. Between the three of you, I think you've covered all the types I'm familiar with.
An excellent video Joe, and a good compliment to TOT's video. Regards Sarah
Thanks Sarah.
Good video, I'll be spending time in the tool room for the next month so this is good practice material. Also one of my journeyman was using a spin indexer the other day on a surface grinder, but only wanted to call it a "whirligig". Thanks for the content, the stuff I am learning on here I am trying to utilize in the shop. We don't use the machines full time, which saddens me since I thought as a die maker apprentice I'd be doing more with them.
Always a pleasant surprise when you post a video...I get to learn something over a coffee break.
Another excellent tutorial Joe - thanks. :)
Dear Mr Joe,
i am a software engineer, have no experience with machines, but from your videos, i learn so much.
Please keep up the great videos.
Thanks, will do!
Imitation is the sincerest form of flattery. Nice work on that broach.
Something else I will need to buy and learn how to do, great video.
Great Video, you make videos that help the common man in his shed shop.
Great demo grinding in the mill Joe . I was going to make an adaptor to mount my TPG in the slotting mount on the Bridgeport ram . Cheers .
Diamond cup wheel for flat grinding stone works great.
Thanks Joe, Bought a grinding cup, made an arbor and I am grinding tools on my mill. Much better finish and accuracy albeit additional setup time involved.
Time well spent.
Beautiful craftmanship.Thankyou
Lost for words... Simply amazing, all I can say. Great video and work, as always.
Thanks again!
I watched the ToT video, I was amused and impressed. I watched your video and I was thinking even I could do that; infinitely more useful. Thanks for sharing!
You can use a radial arm drill to grind with as well.I have used one to put a 36" ground radius on a steam engine expansion link die block.Very effective.
Yet another top notch class! Thank you again. Joe, I can't tell you enough how much I get from your videos. I subscribe to this old tony also..... Gotta love his dead pan humor....
Hi Eric. Thanks for watching. Tony's videos are very entertaining. A lot of editing work to do that.
@@joepie221 Hi Joe, Great video as usual. I don't have a surface grinder, but I do have a Mill, so now I can make a rotary broach. I watch your videos to learn, but I watch ToT for the humor & I do learn something at the same time. We need to see your video 1st to learn how to do something & then to curb our frustration of being a beginner watch the humorous version by ToT. LoL
Thanks Joe, This is one of the most useful things I have learned on TH-cam in a long time. Even with the miniature stuff I make this will be helpful.
Hey Joe, wasn't able to finish the video this AM; had to wait until I got home... bad enough to have to work inside on a beautiful Friday afternoon, but there was a fresh Joe Pie vid waiting
Funny thing, just re-watched the TOT video on rotary broaching this last week... I can't imagine how your video could be considered as stepping on his - a really good extra chapter on the subject.
Really appreciate you taking the time to put these up!
glad to do it. thanks for coming back to finish watching it.
Wow, awesome video, especially if you're learning about broaching! Thank you Joe!
Epiphany: It's a vertical shaper! Awesome presentation as usual, Mr. P!
Incredible everytime I watch I learn with you. Thanks for sharing 👍
Thanks for watching.
@Joe Pie - there is more than one way to skin a cat which is why it is my practice to watch you AND TOT AND Abom79 for ideas. Due to your different experiences and perspectives it gives a lot more information than just one perspective. Blessings and thank you for taking the time to produce such informative videos! :o)
Thanks. We 3 certainly seem to come from very different backgrounds.
Really enjoyed that it was educational for me, off to the tools catalogue now for a Norton cup wheel.
I have been grinding tools, with the same wheel mounted on my face cutter arbour on my mill drill, for years now. Very effective, especially partnered with a dividing head.
The vidio was very good and I brought a hole case of the same cup grinding wheels years as you have years ago on ebay very cheap and still have them, I brought them for mly end mill sharpener.
I use a similar tool to make almost square blind holes in 303 stainless steel rod on a flypress. The sides of the hole still show some of the pilot hole. The job is done in one hit because the steel work-hardens. The tool has to have slight radius on the corners, or they chip straight away, and after experimenting with HSS and o1 steel I settled on plain old carbon drill rod tempered to dark straw. The tools last 50-60 pieces before chipping, it's a tough job for them.
Wouldn't have even thought of using the mill for this. Thanks!
Something spins and something moves......The rest is up to you.
Dam you're good. Wish I had you as my metal work teacher at high school.
Thank you.
I was going to help a friend but now I’m going to the garage and make a broach. Thx Joe
Another great video that I have bookmarked because I am sure I will need the information down the road.
Thanks so much for expanding my knowledge. Regret passing on those cup wheels at a recent auction. Definitely adding one to my tool set asap. Never would have thought about cutting gears this way even though I've seen them hobbed.
Great video, excellent illustration. I realize you have to consider allowing room for camera angles for us to see.
Probably goes without saying! But a shorter tool bit further up into collet would cut down on tool deflection. In any case, great results, I would use this process. Thanks for sharing!
Good job, I learned something here. Never thought of grinding with a cup wheel on a Bridgeport, probably because my shop has a surface grinder. Keep 'em coming.
Absolutely beautiful Joe. Great video shots on the grinding.
Glad you enjoyed it
This opens so many possibilities! Thank you for your excellent videos! Well done!
Another good video and some excellent details raised regarding the geometry created when mixing hollow grinds and back rake. Cheers
Hi Mr. Crispin. thanks for checking in. I hope you and your family are well.
Yep all good. I've been back releasing videos again.
This reminds me of some grinding I done on some drill bits. For anyone using the lathe or drill press, put your drills in a collet and go to surface grinder and grind some flats on your drills 120 deg. apart. You will not have any problems with the drill turning in the chuck. Most guys machining might know this already. GO VOLS !!!
I always learn cool tricks from you, Joe 👍🏽. A new way to use my Bridgeport Mill👌🏽. I have the same Spindex as well. A few months ago I had to make an aluminum fuel valve handle with 1/4” square hole. I drilled a 1/4” hole then made a tool and single pointed to square it up on the Bridgeport. Came out very nice but this would’ve been a much better way. Thank you. I watch ToT too.
Dear Joe,
thank you for another really useful video. As the owner of a small mill and a spare cup wheel I could try this. the finish was just superb.
Aluminium (limey) is however pretty mushy stuff. Would this process be possible with grey cast iron? Would it not be easier to use a square to tram the broach? (Forgive me I used to be a cabinet maker and set hollow mortice chisels that way off the fence).
Finally, this is the kind of job to which the hand powered shaper would be admirably suited. (Wish I had one).
Thanks again. Tony's video was different enough not to cause duplication.
As always great video! I’ve learned a ton from your channel. Thanks Joe.
Thanks for all your comments.
Might want to build a guard to protect you from a grinding wheel failure. Years ago I had a brand new wheel explode on first start-up. I see a 360° danger zone at chest level.
Watched it again after the trunnion video to refresh my memory. Thanks for sharing.
Thanks!
Many thanks.
Another great informative video from Joe, not as funny as ToT... but I really like you both
Very cool, thanks for sharing this - could be very useful for those of us without tool grinders
It really is. Just be sure to drape the critical surfaces of the mill.
Certain tools, machines, techniques, always seems to run in trends among YT creators and fb groups. I wouldn't worry too much about repeats. You might give someone the clue or unique idea they need to get around a problem.
I never would have thought of that! Your common man genius is at a doctorate level!
Can you build a shop made rotary broach next?
Great video Joe. I really understood that information, superb result. I like your dry your machine off and shop vac tip for the grinding dust.
Thanks for the video Joe, loaded with good info. I've often wondered if you could grind in a Bridgeport, now I know.
Nice, will have to get a wheel. Interesting to see how the camera highlights the out of round on the wheel diameter.
Its mildly eccentric and not OD dressed, so it does look out of round.
Exactly what I needed to make on my last project!
I found one of those sticks in some equipment I inherited and had no idea what it was. Now I know. Thanks Joe.
It should last a lifetime if you don't drop it.
Brilliant Joe thanks . Never to old to learn.
People scream about me just laying stuff on my mill table. I can only imagine what you will hear about grinding on your mill! lol
Very nice! I sure would like to see how to grind and cut gear teeth. Maybe use spin index to index gear blank. Thanks for all you do.
Joe, I have to be inventive too. I had to split a pair of bosses that were being clamped by 3 x 3/4 unf cap screws. They were like a large dog bone. 2 1/4'" bore on a 4 3/4" OD and was 3 3/4' long on each end at 16" centres. I was making a giant joining link as on a chain except it was for a reversible plough mechanism. I set the boss in my mill vice. I made up a mandrel to hold a drop saw blade. I used a partly worn drop saw blade (abrasive type) and simply used it as you would use a $200 slitting saw. It was a wee worry because there was no guarding but I was conscious of not overloading it and having a blowout of the wheel. Worked a treat, it fact was prob quicker that a HSS slitting saw. Hardest part was deburring the ragged edge because the steel was of good quality. When i welded the bosses on to the thick wall tube, I lit a decent fire inside a 55 gal barrel with some nice firewood I had, dropped in the dog bone links and kept it stoked up for a good while. I covered when i went home and in the morning removed. It was just able to be handles so I think I stress relieved it quite nicely. I know it machined beautifully so that is always a good sign. I live and work well out of town so have to make do.
Another great video. Thanks Joe...
Thanks for suggesting the Norbide stick. I finally got one, and it wasn't remotely cheap. That said, it does a neater straighter job than a brick or a rock, which makes my job easier.
very cool. it is what I thought and it is good to actually see it done
Great way to sharpen or make tools. Just protect the ways.