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RP#62
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« on: March 23, 2019, 06:55:22 AM » |
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This is amazing to me - I thought it was great when I got a powerfeed on the x-axis on my mill so this just blows me away. Especially the spider towards the end. You don't see a lot of chips here because this is the finishing operation. https://www.youtube.com/watch?v=jMbo5niuU9M-RP |
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old2soon
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« Reply #1 on: March 23, 2019, 08:00:53 AM » |
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Was studying to be a machinist before I got my draft notice. Dekka drills surface grinding mills end mills and learning precision measuring. WOW and DAMN That video IS interesting. As neat as the machining is I would Really Enjoy observing the Machine being built!  Thanks fer posting! RIDE SAFE. |
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Today is the tommorow you worried about yesterday. If at first you don't succeed screw it-save it for nite check. 1964 1968 U S Navy. Two cruises off Nam.
VRCCDS0240 2012 GL1800 Gold Wing Motor Trike conversion
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indybobm
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« Reply #2 on: March 23, 2019, 09:01:57 AM » |
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Fascinating. Before I retired, one of my jobs was the repair and calibration of multi-axis CNC equipment. Nothing like this though. How do you even program and enter the parameters of the operation? Do you have to visualize it?
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So many roads, so little time
VRCC # 5258
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Bigwolf
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« Reply #3 on: March 23, 2019, 11:09:00 AM » |
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I used to go to the international machine tool show in Chicago every other year. It was at least 20 years ago when one of the show booths there had a small sports car (I think it was a Miata) sitting on the table of a multi axis gantry mill and had the mill running with a tool just about 1/8 inch from the car as it followed the contour of the car. The programming was new technology then, using a laser scanner over the car to record the surface profile, and the computer software could then convert that surface profile into a machine program for the machine to duplicate that profile. It is fascinating what modern technology can do. Multi axis CNC machines have made the production of new parts so quick that trying to repair a part is too costly.
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indybobm
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« Reply #4 on: March 23, 2019, 12:47:40 PM » |
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Interesting, but what if that did not have an example? I just cannot imagine how to program the machine to make something like that from scratch. Glad I am retired!
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So many roads, so little time
VRCC # 5258
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Skinhead
Member
Posts: 8742
J. A. B. O. A.
Troy, MI
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« Reply #5 on: March 23, 2019, 03:27:10 PM » |
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Interesting, but what if that did not have an example? I just cannot imagine how to program the machine to make something like that from scratch. Glad I am retired!
I'm sure it takes a little practice. Can you imagine what what this machine must cost? Yet alone paying the programmer. I'll bet if one of you highfalutin' VRCC members could buy one of these, we could make billet alternator covers for about the same price Honda charges for plastic! |
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 Troy, MI |
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Bigwolf
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« Reply #6 on: March 23, 2019, 04:14:50 PM » |
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Today if the designed geometry is wrong, you can do a perfect job of making an item that doesn't work, and inspect that part as correct. We now must control the process instead of the machine.
Today there is little excuse for the part geometry to be wrong. There are, and have been for at least 2 decades, computer programs for engineering. Those programs will show interference with other parts in the operation of the intended part, theoretical mechanical stress on the part during it’s intended operation, and theoretical thermal stress on the part in it’s intended operation. Of course, it is possible that there are engineers working without access to computer aided engineering (CAE) programs. But if there are such engineers today, then they are working under the same handicap that a mechanic would be if he had only a screw driver, crescent wrench, and hammer. They might get the job done, but it is going to take a while and likely end up being very costly in terms of mistakes, time, and wasted parts. |
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Skinhead
Member
Posts: 8742
J. A. B. O. A.
Troy, MI
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« Reply #7 on: March 23, 2019, 05:54:52 PM » |
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Today if the designed geometry is wrong, you can do a perfect job of making an item that doesn't work, and inspect that part as correct. We now must control the process instead of the machine.
Today there is little excuse for the part geometry to be wrong. There are, and have been for at least 2 decades, computer programs for engineering. Those programs will show interference with other parts in the operation of the intended part, theoretical mechanical stress on the part during it’s intended operation, and theoretical thermal stress on the part in it’s intended operation. Of course, it is possible that there are engineers working without access to computer aided engineering (CAE) programs. But if there are such engineers today, then they are working under the same handicap that a mechanic would be if he had only a screw driver, crescent wrench, and hammer. They might get the job done, but it is going to take a while and likely end up being very costly in terms of mistakes, time, and wasted parts. I think most of that works on a part by part basis, but when you start put the individual systems together to create the whole assembly, is where problems arise. I won't air dirty laundry on a public forum, but can relate some stories over a beer sometime. |
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Troy, MI |
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Bigwolf
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« Reply #8 on: March 23, 2019, 06:06:48 PM » |
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Skinhead,
I’ll buy that beer for you! I have seen how engineering things can go sour. Yes, some things don’t need to be discussed on a public forum....... but, over a beer sometime.
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