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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on October 02, 2023, 10:50:42 AM »
Here's the finished roller. 12" scale for reference... this thing is heaaaaavy... 80lbs at least.
The ends were supposed to be flush with the sides all the way to the top with the inside 45į angle extending up to a point. But I didn't have the swing capacity. So, I flattened off the top, took all the covers off the cross slide and still have scrape marks. Just skimmed by...
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on October 01, 2023, 12:15:01 PM »
I'm on my phone now where my photos are.

Here are all the sleeve "cups". Because they're only .080" wall I leave .170" solid material on the back so the chuck doesn't crush the cylinder. Next operation will be to part the solid end off to length. I made a plug that goes in the open end so the chuck doesn't crush.
Then after that I have two plugs to mount the cylinder between centers and turn the OD. 3 operations, kind of annoying and time consuming but I don't have a 3" spindle bore to load the whole bar - which is how this part was done previously.

Then it goes into a dividing head between centers in the VMC and the slots get cut. A 4th axis would be nice for that but I'm told it's not economic. So, start cycle, hand crank dividing head, start cycle again, repeat a whooole bunch of times.
Previously I milled them manually with a 1" end mill which is time consuming and creates too much vibration.

The other job on the bench currently is a very large cable link chain roller pedestal. I argued about this one... it's 9.5" OD x 14" long. And everything is minimum .500" thick. The plate is .500", the end plates were 2", the cylinder is 1" wall. All on a 1" shaft....
You can buy this assembly from a catalogue made from 1/4" plate with rolled flanges (pictured). But they want a heavy duty one. Well, heavy duty is what they designed... I turned the end flanges manually. Turned a step on the interior facing side and turned a mating pocket on the cylinder. Machined the 3 pieces to snap together prior to welding. So I could machine them true without relying on weld alignment which was how they designed it. Finished that up Friday.
I popped back in last night to weld it all together. That way Monday it's fully cooled and settled into whatever pretzel it will flex into. Monday I will finish turn it.
Fun point will be, the initial design has the OD Larger than the max swing over carriage of my lathe - which I did not notice during all the design arguing... it wasn't until I grabbed the 10" x 2" end discs and realised my lathes over carriage capacity is only 9.5... crap...

I spoke to Andrey and he just said to make it 9.5. Phew. Except, 9.5" is what's written in the books. I haven't actually tested this yet... I turned the end plugs to 9.5, which is easy to do regardless of the max swing. However, I have protective coolant/chip covers all over the saddle and cross slide I will have to take all that apart Monday to see if it's ACTUALLY 9.5"... I need. Bigger lathe...
I was recently eyeing this guy a few hours from me. I could sell the small 10" hobby lathe I've had forever for enough money.

https://www.kijiji.ca/v-power-tool/brockville/yamazaki-metal-lathe-21-x-80/1654970401

Anyways, this is already long winded. Tomorrow's a new day, new challenges.
We really need to find someone to hire. I need some help in a real bad way. I have piles of jobs in the shop. I can run two jobs at once usually (CNC and manual) but I often need two manual jobs happening at once.
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on October 01, 2023, 07:21:00 AM »
Both.
I have shown them here before, (edit: I showed them in post 2315) i just canít *say* what they are and certainly canít show the drawings. I was a bit more loose lipped before but now that Iím part of the approved contractor chain, I need to be more diligent. I just donít have a picture handy. Itís a cylinder with four 1Ē slots along the length. Iíve only done the first operations so far, which is drill out the bulk of the material and bore to size. I think thereís 112 pcs this time. And some more bronze parts after that.
Iíve estimated Iíll have $3200 in chipsÖ worth more than the parts themselves.
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by RayH on September 30, 2023, 11:36:20 PM »
Wow!
Milling or turning?
I guess you can't show us what you're making?
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on September 30, 2023, 08:28:01 PM »
About 800 lbs of AMS4640 nickel aluminum bronze chips... and there's still more to go.
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on September 21, 2023, 10:52:52 AM »
Oh they're real "Kirk" vises alright!! Nothing but the finest Kurt knock-offs!

Well no, they're actually GS vises. Affordable, and they advertise they're all match ground. Which is useful.
The sideways vise is of unknown import - I'm borrowing it.

come on man, Kurt vises? Must think I'm made of money....  :57: .........................................  :03:
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by 4GSR on September 21, 2023, 09:42:55 AM »
Are those real Kirk vises you are using there? :-[
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GENERAL DISCUSSION TO INCLUDE OFF TOPIC / Re: What Did You Do Today
« Last post by Carpenter84 on September 20, 2023, 11:13:29 AM »
Tell me you're busy without saying you're busy  !AOK

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General Shop discussions / Re: NC operated machine from the 1960ís
« Last post by 4GSR on September 18, 2023, 09:18:19 AM »
You can "read" a tape. Have to find an old programming book that would have the G-codes for reading the holes punched out per line.  You might hang on to that tape.  Most all of the old NC and some CNC machines with tape readers, have a master tape that is read into the controllers in order to be able to start and run the machine.  It's like DOS for a desktop computer. You have to have it for Windows to operate, or any other program to operate on a computer.
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General Shop discussions / Re: NC operated machine from the 1960ís
« Last post by Carpenter84 on September 17, 2023, 05:41:13 PM »
I think it would be really neat to try and run the tape I have. The section of tape I have appears to be the start of the program. Altho, without any set up data, that could be quite dangerous.
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