Damn, there was a huge amount of metal removal from that pin even before the video started. And, as always, impeccable concentricity, especially considering the scale of the part.
1:07 -'squeek!' 4:24 - Wow; tight OD tolerance. 7:18 - Every time it seems a 3-jaw will do the job, you remember times like this. 8:21 - Piston ring for a steam locomotive! 8:59 - Need to learn to stop the vid in time to read the drawings. See the OD is seat for two roller-bearing inner races; required tolerance. "Spacer" is the red feature between the two outer bearing races? Looks like it ought to be pressure lubed, but there's no 'exhaust' for the lubricant, unless it's that m10 drilling to the left (C/L on the pulley). Strange orientation of the seals. Thanks for an enjoyable mechanical/machining puzzle once more.
What the pin...? (...I thought when I saw the title.) I mean, what's a thrust pin? That doesn't look like a pin at all, so maybe Uncle Google would help me with that? Yeah, he did. The first result with a "thrust pin" in it was _"Rope Pulley Assembly | Thrust Pin and Bearing Bush Machining, Chris Maj"_ Oh, them wonders of modern internet, mać... Will have to watch it till the end to find out... ;-)
Hi Chris, can you elaborate at all on what this pulley system is going to be used for, is it for a cable car or such like, fantastic work as always, cheers.
I know you know what you're doing and I know that's one of those serious clamps, but seeing all that mass dangling from a clamp on a smooth parallel surface made me nervous, hah.
Cómo has quitado el óvalo de la pieza? Poniendo los máximos de óvalo al par de las garras? Te ha dejado apretar la pieza con un mínimo de fuerza para mecanizar la sin peligro? Saludos y buen trabajo como siempre.
Hey Chris, I asked cee and abom79 about this and it seems I can't get an answer and since I'm in the states I really don't want to pay shipping from Australia. Kurtis from cee uses hardened chrome bars, what is the us equivalent of that? He also gets stuff coated with titanium nitride, what is our name? What I need essentially is a 2 inch hole punch designed to cut 2 inch diameter circles of sandpaper. It needs an end cap of some sort and a spring to push it back up after cutting. The other part is in 2 parts, one to hold the bar properly and some kind of slide screw that is there only to keep it captive and aligned with the cutting edge. Both of these welded to some plate in back to keep them aligned. I would also like to punch holes in the direct center of these somehow for a dremel type mandrel. The next part of the project is 2 hardened washers in each size from 1 inch to 2 inches all with the same diameter center hole as the mandrel and as thick as aluminum hard drive platters. These titanium nitride. One last item, I used mandrel from a company "pinecar racing" they sold to help sand the wheels. I went to my supplier yesterday hobby lobby and they switched brands so I will need a few mandrel made with long screws, flathead, half inch long screw. Let me know what I need to accomplish all this. Dellr007@yahoo.com
Hi Chris, i was wondering about your lathe that does it have memory for your geometry on tools or do you have to everytime when you switch tool take X and Z again ?
Damn, there was a huge amount of metal removal from that pin even before the video started. And, as always, impeccable concentricity, especially considering the scale of the part.
Really enjoy seeing all these big parts, thanks for posting!
Thank you Chris for this beautiful machining video, I love the giant micrometer, have a good weekend and see you soon.
I am amazed that these beasts get that type of precision. Thank you for sharing.
The precision is mind-blowing. That's so satisfying to see arrow of the indicator not moving even a 0,001.
Hey shout out to your boss for being cool with you sharing your work.
plot twist: he doesnt know it yet 💀
Plot twist: He is the boss.
That boring bar though! great work and ultimate precision Chris, thanks for sharing buddy
Beautifully done as always Chris!! Love it 😊😊😊
Love the Big components and the tight tolerances
Wow. Some more big lumps of metal there Chris.
Beautiful work as always mate
Having the description as Rope Pulley does not do the part justice.
Awesomeness. This inspires me more and more to do cnc convertion on my little hobby lathe
Nice work done😊
1:07 -'squeek!'
4:24 - Wow; tight OD tolerance.
7:18 - Every time it seems a 3-jaw will do the job, you remember times like this.
8:21 - Piston ring for a steam locomotive!
8:59 - Need to learn to stop the vid in time to read the drawings.
See the OD is seat for two roller-bearing inner races; required tolerance.
"Spacer" is the red feature between the two outer bearing races?
Looks like it ought to be pressure lubed, but there's no 'exhaust' for the lubricant, unless it's that m10 drilling to the left (C/L on the pulley).
Strange orientation of the seals.
Thanks for an enjoyable mechanical/machining puzzle once more.
THE DOGS NUTS
Brilliant!👍👍
Many thanks !
по выверке уровень - чародей:)
Whether you make chips or spaghetti, it all looks pretty cool to me.
WOW ! That's Amazing
Sangat indah kawan🎉
What the pin...? (...I thought when I saw the title.) I mean, what's a thrust pin? That doesn't look like a pin at all, so maybe Uncle Google would help me with that?
Yeah, he did. The first result with a "thrust pin" in it was _"Rope Pulley Assembly | Thrust Pin and Bearing Bush Machining, Chris Maj"_ Oh, them wonders of modern internet, mać... Will have to watch it till the end to find out... ;-)
Hi Chris, can you elaborate at all on what this pulley system is going to be used for, is it for a cable car or such like, fantastic work as always, cheers.
That's one of those jobs that I can't discuss much about.
Thanks for sharing 👍
I know you know what you're doing and I know that's one of those serious clamps, but seeing all that mass dangling from a clamp on a smooth parallel surface made me nervous, hah.
Cómo has quitado el óvalo de la pieza? Poniendo los máximos de óvalo al par de las garras? Te ha dejado apretar la pieza con un mínimo de fuerza para mecanizar la sin peligro?
Saludos y buen trabajo como siempre.
Going to CL 👀 , I’m still too rookie to know the limit on that.
Metric drawings for a change Chris.
👍👍👍🤘
Hey Chris, I asked cee and abom79 about this and it seems I can't get an answer and since I'm in the states I really don't want to pay shipping from Australia.
Kurtis from cee uses hardened chrome bars, what is the us equivalent of that? He also gets stuff coated with titanium nitride, what is our name? What I need essentially is a 2 inch hole punch designed to cut 2 inch diameter circles of sandpaper. It needs an end cap of some sort and a spring to push it back up after cutting. The other part is in 2 parts, one to hold the bar properly and some kind of slide screw that is there only to keep it captive and aligned with the cutting edge. Both of these welded to some plate in back to keep them aligned. I would also like to punch holes in the direct center of these somehow for a dremel type mandrel.
The next part of the project is 2 hardened washers in each size from 1 inch to 2 inches all with the same diameter center hole as the mandrel and as thick as aluminum hard drive platters. These titanium nitride.
One last item, I used mandrel from a company "pinecar racing" they sold to help sand the wheels. I went to my supplier yesterday hobby lobby and they switched brands so I will need a few mandrel made with long screws, flathead, half inch long screw.
Let me know what I need to accomplish all this.
Dellr007@yahoo.com
Hi Chris, i was wondering about your lathe that does it have memory for your geometry on tools or do you have to everytime when you switch tool take X and Z again ?
What is the actual end use for this pulley?
Seilrolle.
What a great work and Amazing precision ! But just a question : why pushing material and not pulling it while using the boring tool ? Thanks
Tell everyone you're not a machinist, without telling everyone you're not a machinist. You obviously have no idea how lathe tools work.