I'm glad you found it useful. I'm trying to get to making the wheel type balancing stand to use this spindle. COVID has killed my productivity with the whole family home all the time.
The fun really gets interesting when the mystery metal is air hardening tool steel. That's happened a few times. From there, you need a heat treat furnace to anneal it back to machinable state. I came here looking to make a similar balancing arbor, as eBay has them too pricey, and "have machine shop, make parts".
Steel shaft your cutting is a piece of induction hardened chrome steel hense the shift in apearencee and hardness. You need a ceramic insert tooling to cut that
I think your different finishes on turning the tapper has to do with surface feet per minute rather than hardness. As the diameter increases, the surface feet per minute also increase.
That's a reasonable assumption, however the change in diameter was very slight in this case. What actually appears to have been going on was the rod I was using was case hardened. The outer hardened surface was about .050" thick! Grinding made the difference in hardness and appearance very evident later on. I had never turned such a piece of steel before, and I'm not sure I'd want to again. But it did make a nice arbor in the end.
lil constructive criticism. notice on well edited videos, and u have to consciously look for it, there are TONS of spots where video stops then starts again... basically if u edit out every time u say ummm uhhh or u have to think about the word, its incredible how much production value increases! Its insane how much more pleasing it is to the unconscious! youll be amazed how much more pro it feels... if its not obvious i know this based on experience... someone was nice enough to share this with me.... love the content!
Thank you for your input. I am aware of all the little things I could/should do to greatly improve my production quality. I currently lack a stable production platform for shooting and editing, so I keep it simple for now.
@@i-squared gotcha i get it man, thats a whole lot more editing. I like the details you include, very helpful for those that using youtube to learn this stuff. lot of people its almost like ur just watching them complete the thing. so I selfishly wanted your channel to grow lol!
I get the most criticism for being too detailed, or wordy. But I think to convey a technique the details are important. I try to answer the obvious questions about planning and processes before they are asked. Hence the name of the channel... Those seeking entertainment are usually bored, and they let me know it. Too much time on their hands I suppose. I had a brief career path in IT for a while. I got a lot of questions from people who simply asked, "Just tell me what damn button to push! I don't care why..." So I complied. Those people are still asking that same question and are no more competent today than they were 20 years ago. Thanks for your input. I'm putting together a dedicated editing station now. Look for more content in 2024.
Great video. You taught me some things. I’ve never checked the accuracy of a center drilled hole. How did you set up, verify your 7.125 degree taper on the compound? I made an angle gauge and ground it. The taper came out like yours, very good fit on the old Sopko adapter. The mystery metal is a first for me also. You have motivated me to add the four wheels on my ground rail set up. Thank you for sharing this video. I’ll subscribe for sure. I like the way you approach your work.
Thanks. I'm glad when I can impart some useful info. That's the whole point of the channel. 'Cause I suck at entertaining. :) I set my taper by by placing the mating part (wheel adapter) in the chuck and running the compound in and out with an indicator, adjusting for zero deviation. I though that was in the video. I'll check and include it in another when I can.
I just made a balancing shaft yesterday of cold rolled bar. Set one dial indicator to measure 1 inch parallel movement of compound to lathe bed. Set another to measure .1250 movement in of cutter in the 1 inch of travel. Just kept bumping the compound angle until 1 inch x movement yielded .1250 movement of y axis. Got a print of 100% on both inner & outer tapers of the Sopko hub.
You mean a wheel that's not worn to the nub and all chipped out of balance? What makes you say that? LOL! Indeed, I have to order a few but put it off since I use it so seldom because of the mess it makes. Mainly, it's just for grinding my chuck jaws every few years. I hope to use a motorized spindexer on the new surface grinder for shafts in the future. A tool and cutter grinder would be welcome too. So many tools, so little time... and space, and money,and... Thanks for watching.
Not sure exactly since I have no docs for the Craftsman version of this Dumore. It appears to handle a 2.5" x 3/8" wheel. It currently has a sleeve for a 1/2" bore on this cupped wheel. The cup is what's all chipped away. I haven't decided what wheels I want to order yet. Like I said, I hope to never use it for shaft work again if I can use the surface grinder and spindex jig. I have plenty of wheels for grinding my chuck jaws for which it is exceptional. And I can suck all the grinding dust out the back of the spindle!
Well then, I guess I need to get off my duff and make the balancing frame. I bought the tool steel for the wheels. I also need to come up with some way to balance the wheel adapters too. I think the drilling of a series of threaded holes in the mounting washer for set screw weights was a good idea. Guess I have some work to do. Thanks for watching.
@@i-squared thank you. I appreciate it. I haven't been making too many videos lately. But now that the weather is better and I have some free time I'll be trying to squeeze on in if my back doesn't bother me too much.
I figured as much. But I was amazed by how uniform the case hardening depth was and how abrupt the change in hardness was. I've machined some "case hardened" rod before but the depth varied a bit and the transition was as thick as the hardened surface. Metallurgy is an amazing science I have yet to fully appreciate. Thanks for watching.
@@i-squared Oxtool made a video where he was going after a good quality case hardened rod in his lathe for inclusion in one of his projects and that rod showed the same precise delineation as the rod you were turning. That's what clued me in to what you had going on.
Absolutely! Hadn't thought of that. The high frequency would account for the shallow and consistent surface hardening due to skin effect. Makes sense. Thanks for watching.
LOL! You're observant. I had to review the video to see if I mentioned that. I play a Classical Yamaha. Just a novice. Trying to play some Flamenco style, ala Ottmar Liebert. A little bluegrass now and then. Just have never acquired the feel for the pick. Thanks for watching.
@@i-squared oh thank you for the reply I'm autistic so I notice certain things very quickly as soon as I had seen your right hand I waited for a view of the left which confirmed my suspicion I play many types of music Including flamenco another of my special interests I would say would be machining and or just the machines them selves I love looking at them ball handles are a very big thing to me I have a large collection
Thanks for the sub Jeremy. I've added a link to Wm. Sopko above, who was kind enough to include drawings for all the adapters. The taper is 3" per foot. I think that works out to 7.5 degrees for feeding the tooling with the compound.
Glad I found this. I am about to start a very similar build for balancing my wheels. Great video and results. Thank you!
I'm glad you found it useful. I'm trying to get to making the wheel type balancing stand to use this spindle. COVID has killed my productivity with the whole family home all the time.
The fun really gets interesting when the mystery metal is air hardening tool steel. That's happened a few times. From there, you need a heat treat furnace to anneal it back to machinable state. I came here looking to make a similar balancing arbor, as eBay has them too pricey, and "have machine shop, make parts".
Steel shaft your cutting is a piece of induction hardened chrome steel hense the shift in apearencee and hardness. You need a ceramic insert tooling to cut that
Great work enjoyed your presentation and all around fantastic video. Thank you for your time and effort.😊
I think your different finishes on turning the tapper has to do with surface feet per minute rather than hardness. As the diameter increases, the surface feet per minute also increase.
That's a reasonable assumption, however the change in diameter was very slight in this case. What actually appears to have been going on was the rod I was using was case hardened. The outer hardened surface was about .050" thick! Grinding made the difference in hardness and appearance very evident later on. I had never turned such a piece of steel before, and I'm not sure I'd want to again. But it did make a nice arbor in the end.
lil constructive criticism. notice on well edited videos, and u have to consciously look for it, there are TONS of spots where video stops then starts again... basically if u edit out every time u say ummm uhhh or u have to think about the word, its incredible how much production value increases! Its insane how much more pleasing it is to the unconscious! youll be amazed how much more pro it feels... if its not obvious i know this based on experience... someone was nice enough to share this with me.... love the content!
Thank you for your input. I am aware of all the little things I could/should do to greatly improve my production quality. I currently lack a stable production platform for shooting and editing, so I keep it simple for now.
@@i-squared gotcha i get it man, thats a whole lot more editing. I like the details you include, very helpful for those that using youtube to learn this stuff. lot of people its almost like ur just watching them complete the thing. so I selfishly wanted your channel to grow lol!
I get the most criticism for being too detailed, or wordy. But I think to convey a technique the details are important. I try to answer the obvious questions about planning and processes before they are asked. Hence the name of the channel... Those seeking entertainment are usually bored, and they let me know it. Too much time on their hands I suppose.
I had a brief career path in IT for a while. I got a lot of questions from people who simply asked, "Just tell me what damn button to push! I don't care why..." So I complied. Those people are still asking that same question and are no more competent today
than they were 20 years ago. Thanks for your input.
I'm putting together a dedicated editing station now. Look for more content in 2024.
Great video. You taught me some things.
I’ve never checked the accuracy of a center drilled hole.
How did you set up, verify your 7.125 degree taper on the compound?
I made an angle gauge and ground it. The taper came out like yours, very good fit on the old Sopko adapter.
The mystery metal is a first for me also.
You have motivated me to add the four wheels on my ground rail set up.
Thank you for sharing this video.
I’ll subscribe for sure. I like the way you approach your work.
Thanks. I'm glad when I can impart some useful info. That's the whole point of the channel. 'Cause I suck at entertaining. :)
I set my taper by by placing the mating part (wheel adapter) in the chuck and running the compound in and out with an indicator, adjusting for zero deviation. I though that was in the video. I'll check and include it in another when I can.
I just made a balancing shaft yesterday of cold rolled bar. Set one dial indicator to measure 1 inch parallel movement of compound to lathe bed. Set another to measure .1250 movement in of cutter in the 1 inch of travel. Just kept bumping the compound angle until 1 inch x movement yielded .1250 movement of y axis. Got a print of 100% on both inner & outer tapers of the Sopko hub.
came out nice! thanks for sharing.. I think a new wheel for TP grinder would likely improve finish.
You mean a wheel that's not worn to the nub and all chipped out of balance? What makes you say that? LOL! Indeed, I have to order a few but put it off since I use it so seldom because of the mess it makes. Mainly, it's just for grinding my chuck jaws every few years. I hope to use a motorized spindexer on the new surface grinder for shafts in the future. A tool and cutter grinder would be welcome too. So many tools, so little time... and space, and money,and... Thanks for watching.
What OD/ID wheels does your grinder use ?
Not sure exactly since I have no docs for the Craftsman version of this Dumore. It appears to handle a 2.5" x 3/8" wheel. It currently has a sleeve for a 1/2" bore on this cupped wheel. The cup is what's all chipped away. I haven't decided what wheels I want to order yet. Like I said, I hope to never use it for shaft work again if I can use the surface grinder and spindex jig. I have plenty of wheels for grinding my chuck jaws for which it is exceptional. And I can suck all the grinding dust out the back of the spindle!
Thank you! Im just dipping my toe into my new surface grinder and this was a great video
Well then, I guess I need to get off my duff and make the balancing frame. I bought the tool steel for the wheels. I also need to come up with some way to balance the wheel adapters too. I think the drilling of a series of threaded holes in the mounting washer for set screw weights was a good idea. Guess I have some work to do. Thanks for watching.
Incidental Information funny, I’m about 50 pages deep on google images looking at balancing frames. Im subscribed and waiting
Nice job there. I'm trying to make one as well. Thanks for sharing.
Thanks. And I like your page, especially the intro. I'll be subscribing with my viewing login.
@@i-squared thank you. I appreciate it. I haven't been making too many videos lately. But now that the weather is better and I have some free time I'll be trying to squeeze on in if my back doesn't bother me too much.
I also subscribed to yours as well.
It's case hardened rod hence the two different appearances.
I figured as much. But I was amazed by how uniform the case hardening depth was and how abrupt the change in hardness was. I've machined some "case hardened" rod before but the depth varied a bit and the transition was as thick as the hardened surface. Metallurgy is an amazing science I have yet to fully appreciate. Thanks for watching.
@@i-squared Oxtool made a video where he was going after a good quality case hardened rod in his lathe for inclusion in one of his projects and that rod showed the same precise delineation as the rod you were turning. That's what clued me in to what you had going on.
Induction hardened shafting?
Absolutely! Hadn't thought of that. The high frequency would account for the shallow and consistent surface hardening due to skin effect. Makes sense. Thanks for watching.
Kaise banae jaate Hain grinding wheel
Much like ceramic pottery. They are formed and sintered in a kiln.
do you play classical or some type of fingerstyle guitar?
LOL! You're observant. I had to review the video to see if I mentioned that. I play a Classical Yamaha. Just a novice. Trying to play some Flamenco style, ala Ottmar Liebert. A little bluegrass now and then. Just have never acquired the feel for the pick. Thanks for watching.
@@i-squared oh thank you for the reply I'm autistic so I notice certain things very quickly as soon as I had seen your right hand I waited for a view of the left which confirmed my suspicion I play many types of music Including flamenco another of my special interests I would say would be machining and or just the machines them selves I love looking at them ball handles are a very big thing to me I have a large collection
What was the taper angle? Im about to turn one myself?
Thanks for the sub Jeremy. I've added a link to Wm. Sopko above, who was kind enough to include drawings for all the adapters. The taper is 3" per foot. I think that works out to 7.5 degrees for feeding the tooling with the compound.
Incidental Information thanks for that!
Enjoyed thanks.
Thanks for watching. Subbed your channel as well. Good Stuff!
@@i-squared Thanks.
Exciting stuff 👍