PM Research Mini Mill, Machining the Base - Part 2............OH NO !!!!!
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- เผยแพร่เมื่อ 19 เม.ย. 2024
- This video details more machining on the PM Research mini mill base.
All was going very well until I discovered......Uh oh.....Check it out.
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Joe. We used to have our Mark out table for our castings. Where all final machine faces and holes were marked out, and center popped. Once center popped, hole finished size were scribed on casting. Very often, the datam had to be adjusted so everything would clean up, then all lines had to be remarked. They were big castings for cone crushers, and by doing this we saved many hours of setting up on our big Horizontal borers. Occasionally it was easier to weld up the cast steel to hide our mistakes in casting. I do like your channel. Cheers from Australia 🇦🇺
Sounds like fun. Thanks for checking in.
Had the same problem the first time I built this, made replacement out of brass and had it screw in without backup. Your choice ending gave me the chuckles. I was not so polite when I learned the issue. And like you once said a true machinist can work his way out of issues/errors. DO IT !!
Brass hinges on the door was a masterpiece. Therefore a brass lug fixed with some fairy dust should be a piece of cake for Joe Pie. Looking forward to seeing the fix. Great video as always Joe.😅
It's not about never making mistakes, it's about how you deal with them :)
So true. And learn from them too.
Anybody else play the last 10 seconds of this episode at various slow payback speed or is it just me?😅
Priceless !!!!!
Yup 😢
I sure did. Thanks for the idea!
You’re killing me smalls 😂😂😂
0.5x levels of frustration.
Looking beautiful nonetheless. I'm excited to see how you fix it!
Try aluminum soldering rod and build it up in place. The stuff is really good and all you need for heat is a propane torch.
I welded an aluminum tube to a soda can and it's amazing how well it holds and looks.
IF it doesn't come out to your satisfaction cut the boss off but I doubt you'd have to.
TFS
I don't have time to watch your videos as often anymore, but when I can, I always learn plenty!!
One of the few that explains all the numbers and thought process for what would seem like simplicity for the budding machines.
You are truly an unrealized asset!!!
Awesome, thank you!
When you are an expert, you can be calm about small miscalculations. Thanks for the video keep on keeping on.
I'm not sure what they had in mind with this feature, but if you do one thing correctly, you get burned somewhere else. Its really a Pandora's box domino effect. That lug really should be taller right from the start.
Mill it off an make a lug that will actually go down to the base. Would it not give you more knee travel? Still looking fantastic. Loving the setups.
"You're killing me smalls!" 😅
Ohhhh, dear, I feel your pain when you are SOOO careful and a Gremlin just pops out and says "Gotcha". You did a wonderful work around making a door and storage space that functions, this minor setback you can fix with one hand tied behind your back. Come on, if you can magnetize aluminum and make a perpetual energy machine, this fix will be childs pkay for you. I DO feel your pain, though, and it's just not rightthat this happened with all of that careful planning.
Thinking 10 steps ahead just wasn't enough this time.
I have a horizontal mill of the vintage of the one the model was based off of, and the knee dovetail also references off of the column face just like the model. Its certainly more important to keep chips off that face, but damn is that a rigid setup. Also even though it's bearing on the column face, its still about a third of the width of the column is releived. I imagine so they didnt have to scrape in a football field.
Looking forward to another challenge fix!
I'm looking forward to seeing how you fix it. No doubt it'll look great. Always watch to the end :)
Thank you for all the hard work in making these excellent videos.
Thank you for the video. Joe.
My thoughts exactly.Mill it off and make a new part
It’s looking good Joe.
Thanks for the look!
It's always a great pleasure for me to watch your videos. It is a great credit to you and your years of experience to adjust to an issue and complete the project you're working on. Thanks for your time and presenting knowledge that some of your viewers need for whatever they are making.
Love watching your process.
Wouldn't be a PM Research kit without issues like this arising lol. 👍👍
I love a good challenge.....Hold my beer
Love your work Joe.
Love your work Joe! From down under.
Mr Pie great work
Very good video Mr Joe Pie,,thanks for your time
Joe's videos are always worth watching to the very end. This one takes it to a new level of viewer enjoyment. Thanks!
Glad you enjoyed it!
I love your collected and positive way of dealing with issues.
Especially after hearing the blooper reel ;-)
Love your videos Joe, been with ya for a while.. Keep em coming! I started a DIY channel about a year ago and you been a great help in a lot of things I do! 👍👍
Great work. You do a great job explaining the logic behind what you're doing, and how to deal with problems. Extremely helpful.
Well, either way, you have the skills and the equipment to fix it…… that’s what we do. Think outside of the box and make things work. Thanks for the video and I appreciate your channel. 👍
33:25 Hi Joe, great work as always - and you will come up with a perfect solution nobody can think about at this point. Excited to see this soon. Cheers Ulf
Great video!! I like the idea of two small Allen cap screws holding that boss on, but you will make it look like it belongs however you fix it,Thanks Joe!
Thanks Joe. Another masterclass in set up. Regards from Wales
Most of it went well. That lug was a gasp moment.
Nice methodology. This is a basis of good milling and turning. Luv ya Joe pie.
Thanks 👍
If I was younger I would love to come and work in your shop. You are truly a master of your craft. In my opinion, that's no mini mill. A micro mill or even a nano mill would be more accurate. I love to watch you make these models. I think I even learn something. KOKO!
Very nice Joe. I do calculations on my vice also.👌
Thanks again Joe
You bet.
Awesome video…discussion of decisions
My head is spinning trying to keep up with Joe’s thought process.
Thanks for sharing quite a problem I'm sure you'll solve it
The best outake ever!
Do what needs to be done, you won't be happy if you don't. Nice work as usual. J
Very enjoyable video and project, then one realise that feature was made lower during casting without any malintent, just a oversight but an oversight that just created more work than expected, one of the joys of modelling in the train model world. "Train modelling is fun"😂 and so is engineering models. that i learnt quite early
what is my favorite holiday it is every day!
More super work Joe - your patience is amazing! But -- oh dear yes, time for tears. That's a bummer but I think your plan is pretty sound even though it's more fiddly work. I'm sure it'll work out really well with applied "Pie" skills! :)
I see it an an opportunity for improvement.
Another great video! Sometime I'd like to see what you use for spindle tooling. I really enjoyed the lathe tooling video and I always love the fixturing and workholding setups. But do you mostly use R8 collets, end mill holders, ER collet chucks, or other tool holding?
Make yourself a bronze nut for the z axis screw and bolt that on the remnant of the boss on the casting. Wings in the side with 4 0-80 socket head cap screws in counterbores and it should look great and work better due to better alignment
Learning a lot from your careful considerations. .
Excellent. Glad to hear it.
Dang Joe, that was real sad you had to finish this episode in chipmunk mode.
You will find create and live a solution on this one. I trust in you :)
Love the following along a master on his way through imperfections.
That's a bummer Joe... some things cant be seen 10 steps ahead. I'm sure you'll have a solution as always...👍👍
Thaks for the video. Onto very job, a little rain must fall.
Rain makes you appreciate the sunshine more.
Oh well. That knob looks ugly anyway. A new one will be much nicer!
I find working with castings always tricky. Your casting is also quite complex.
Great shots by the way. Love the video quality!
Nice work on the base and dovetails. Looking forward to the uh oh solution..
I have faith 🤞🤞
If all else fails maybe one of your aluminum magnets could fix it 🥴
I'll keep that in mind.
Tack!
Thank you.
After April´s fools comes Pandora´s box.Great video,Joe.Thank you.
This was a shock.
I agree that the lug has got to go and it’ll be interesting to see how you replace it.
Joe, could you jus turn down the end of the screw that mounts in the boss and use a smaller hole?
You could drill and thread a hole for an aluminum plug that shoulders out on the face, then machine and file to a boss shape. Many other options too of course, we know you will get past it and all will be fine. Thanks for the video! P.S. I always know its authentic Pie when I hear the motorcycles screming by in the background. 😂
Your suggestion is incredibly close to the path I chose. Good call.
Slow the video down at the end and see if you agree with Joe the chipmunk!
Hi Joe,
Awesome machining. Shame about the pin not lining up with the boss. I slowed down the playback and was able to make out a few choice words. Gave me a good laugh, although I know you wish it did not happen. You and the family stay safe.
Initially I didn't believe my eyes. Its already fixed, but it was a shock. Thanks for watching. Stay well.
Thanks for another great video. I was wondering about the 123 blocks and springs. Maybe you spoke about them in another video that I haven’t seen yet.
Looks like a couple die ejector springs just used to keep the 123 blocks in place.
That said, it is tough to tell what the 123 blocks are supporting.
They are holding up a parallel holding the block pushing on the top of the casting where the step pulley would be. @@grntitan1
Springs are there to keep them in place so the parallel doesn't fall down.
At least that's what I'm seeing
I agree with Dave, they are there to hold a parallel that is supporting the top end of the part. The base of the part is sitting on the vice.
It is interesting to see that the one 123 block shows the work of an apprentice, It is witnessed.
Would anyone believe me if I said I bought them used??
It's great to see you again my friend. I have been wondering what you have been doing these days. As far as the end work on this piece is what looks like a big fail problem but don't forget that "only the real profesionals can fix their mistakes", LOL. I am quite sure you have a pill for this wee problem eh, Sophie was wondering how your pin files or all yourr files are. Take care my Texan friend.
Hello my Canadian friend. Thanks for checking in.
Hi sorry if I missed it somewhere but can you give me some information on the general clock stand please
You are doing better at that model the almost everyone else.
Thank you. I really enjoy this.
20:05 very well explained. I am not a mechanist by the way
Thanks
Many thanks.
Hello Joe on a different subject I can't seem to locate the alignment tool on your online store
What a bummer
Help on a different note I can't find your 3 sided alignment tool on your website store
👍time for the TIG welder.🙂
That's why I chose metal over wood for a career. If you eff up, you can always put some back. 😂
Would be cool to make the table rod boss out of brass , look like bronze.
no worries
I was terrified of what was going to happen during the entire episode. I was paying attention like a hawk. At first, I thought that you were going to mess up the centering. Fortunately, it was “just” the lower base. Very fixable. Phew.
Wings would look nice.
It would look very industrial.
I'd be gutted over that.
can you just add material with a tig welder or those alumiweld rods or whatever they are called
👍👍
Could the pin not be reduced for the boss? it wouldn't be visible either ?
I'd tig weld it and build the boss up first. But even before that I'd just knock it off drill and tap the hole and thread a new chunk of material in and remachine it.
Oh boy. I guess remove most of that, then either solder or bolt on the replacement that was separately machined.
That’s a no bueno Joe. 😉
Mucho Grande No Bueno Amigo
I heard that AH SH## ! All the way to my house 😞! Only good thing is I know that you can fix it . 😉See what happens when you only think ten steps ahead instead of eleven .😂
No kidding. This one got me.
That is unfortunate. I consider that a casting error. Would it be possible to relocate the hole in the table to make the stand's feature work? (I realize that your hole is already placed; I was thinking of those of us who follow.)
Relocating the hole, or lowering the knee are not options. The repair must be at the lug.
Thats a bit of a pain in the butt, but knowing how your mind works you come up with a creative idea that will look like it was meant to be there.
You neglected to use the word "unloosen" when taking the little grub screw out of that spring-loaded tap follower early in the video
I will admit feeling slightly let down by this...
...but not as let down as I feel with the accuracy of the T handle!
I think this video would be worthy of "Shop Gem"
Commenting on the wrong video???
I find that these kits are designed to test and make one think outside the box, while still covering the basic skills.
I know you will overcome this in short order, after considering any unforeseen consequences.
You Bet.
Since a lot of hobbyists or fabricators would like a mill but can’t justify a $5-10k mill, a video on the capabilities and limitations on a mini mill or bench top mill would be appreciated.
I'll have to get one donated to this shop and start that series. Good idea.
Thanks Joe.
@@stuartkorte1642 I don't see anything that you re doing on the Bridgeport and Clausing that can't be done on a mini. - until you get to the microscope sizes there may be a maximum size, but I don't see a minimum size. - All the same number of turns on the cranks either machine. (If the Chinism mill is ridged enough to hold size) .
Ouch. You'll rescue it. Redrill the left hole, add a bushing......
I won't settle for "almost good enough".
That was some colorful language...when vid slowed down to 1/4 speed for the last few seconds...
There is always some sort of challenge. Nothing a machinist conquistador such as you can't handle!
Woody
Time to roll up the sleeves and show that casting who's boss around here.
👍👍😎👍👍
Take the knee 70 thou deeper and use a bigger gib?
Did you see how little material was left as it is? Another 0.070" lower is a step too far. There would be too little flange (along with poor cosmetics) left.
🤦🏼♂️The End🤬. 🤣🤣🤣.👍🏴
Can’t you just mill the boss off and weld in a taller replacement? I see another similar comment (TIG weld). Is the casting some exotic alloy?
Possibly, although TIG welding castings can end up being an equally challenging situation.
The chances of distortion after welding in the already machined faces is a real possibility. For me, the risk would be too high.
Weld it up,,,,,,Grind it down. ---Especially the way you are with a die grinder and file, nobody will ever be able to tell.
Naa. You can make that look a million times better. Brass ball thing on a thread and nut inside the casting.
I was told by an old German machinest brass on Aluminum very good anything else no good and no lubricont.
That's a real shame. Sometimes happens with model drawings that aren't fully dimensioned. You could machine the majority of the offending boss away and leave a remnant in place to use as a tenon for your new boss, and then perhaps fix the new boss with a screw from inside the cavity. Just a thought...
Were you looking in my shop window recently?? Good guess. Really good guess. :)
@@joepie221 I just drifted off into a four thousand mile stare and it came to me :-) (I can't resolve anything smaller than about 1/8" without my specs these days, so your secrets are safe with me B-!) I look forward to seeing what will doubtless be a flawless execution of a well-engineered fix.
Pedestal off the base