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blowlamp27/11/2018 22:47:45
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Demo of processing the collet through ECam to generate gcode.

Gary Wooding28/11/2018 10:41:16
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Posted by blowlamp on 27/11/2018 22:47:45:

Demo of processing the collet through ECam to generate gcode.

Without any form of commentary, it was more like a conjurer pulling rabbits from a hat.

blowlamp28/11/2018 11:31:09
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Posted by Gary Wooding on 28/11/2018 10:41:16:
Posted by blowlamp on 27/11/2018 22:47:45:

Demo of processing the collet through ECam to generate gcode.

Without any form of commentary, it was more like a conjurer pulling rabbits from a hat.

Mrs Blowlamp had the telly on when I made it. wink

I'll make a Director's Cut for you when the noise dies down.

JasonB28/11/2018 11:31:30
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I have not really looked into CAM and CNC much as I don't have the machines to use it but that does look quite an easy way to get the part machined rather than writing G-Code that I seem to read about a lot on here. There is no way I could understand that list at the end but I could get a good idea of what you were doing on the screen.

blowlamp28/11/2018 13:11:08
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Posted by JasonB on 28/11/2018 11:31:30:

I have not really looked into CAM and CNC much as I don't have the machines to use it but that does look quite an easy way to get the part machined rather than writing G-Code that I seem to read about a lot on here. There is no way I could understand that list at the end but I could get a good idea of what you were doing on the screen.

Jason.

All CAM apps use a thing called a 'post processor' and all that does is ensure the list at the end is written in a way your controller (Mach3, FANUC, LinuxCNC, etc) can understand - it's mostly the same 'language', but with slightly different dialects.

Given the right post processor, you'll hardly ever need to fiddle with the produced gcode.

Updated video, which I hope helps someone.

JasonB28/11/2018 13:33:26
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Thanks Eddie, very informative and explained in easy to follow language.

blowlamp28/11/2018 16:01:43
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Finished parts.

img_20181126_143832588.jpg

img_20181128_141447612.jpg

img_20181128_141745523.jpg

Gary Wooding29/11/2018 08:14:57
477 forum posts
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Thank you Eddie, that was much clearer. Did you drill the centre before or after turning the profile? If after, how did you hold it?

Brian H29/11/2018 10:23:09
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Many thanks for that Eddie, very informative and, although I don't have the capability at the moment, I can see that it's the way forward.

Brian

blowlamp29/11/2018 12:25:14
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Thanks for the feedback. yes

I drilled the holes first to maintain concentricity and before cutting the profile so as not to start drilling on a curved surface. A spotting drill was also used in an effort to keep the holes on centre and prevent wandering.

In retrospect, I think I'd have been fine either way because of the spotting drill's rigidity, although doing it the way I did let me drill a little deeper into the waste to ensure the tip of the 'bore-size' drill was fully contained at the start.

After parting off, they were held backwards in an ER11 collet and drilled @ 2.7mm to about 7mm from the front end and then tapped M3.35 x 0.8mm pitch. I had to make a tap due to the non-standard size.

Martin (Eddie Walker)

blowlamp02/12/2018 23:41:35
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Modelling an oval shaped screwdiver handle in MoI with just two curves and the Rail Revolve tool. yes

You could, for instance, export this from MoI as an STL file to a 3D printer, if you so wished.

 

Oval Screwdriver Handle in MoI from Eddie Walker on Vimeo.

 

Martin (Eddie Walker)

Edited By blowlamp on 02/12/2018 23:44:51

Gary Wooding03/12/2018 08:02:30
477 forum posts
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Thanks Eddie, that was very clear and interesting. I've never seen Rail-revolve before.

blowlamp06/12/2018 13:31:46
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1101 forum posts
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Keeping this topic alive. gift

Drawing an adjuster knob in MoI, using Extrude and a few other features to get the shape I'm after.

Oxymoron06/12/2018 17:07:13
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Hopefully this has not been covered and I've missed it in this thread. Was wondering if anyone had recommendations of a CAD package to run on Apple Mac please? I believe Alibre only runs on Windows.

Thanks

Dave

blowlamp06/12/2018 17:14:38
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1101 forum posts
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Posted by Oxymoron on 06/12/2018 17:07:13:

Hopefully this has not been covered and I've missed it in this thread. Was wondering if anyone had recommendations of a CAD package to run on Apple Mac please? I believe Alibre only runs on Windows.

Thanks

Dave

Have you tried MoI?

Martin.

Oxymoron06/12/2018 17:29:31
5 forum posts

Thanks Martin, no the only package I have used is Sketchup and that was years ago for woodwork projects. I was just interested what others would recommend. I'll check out MoI.

Thanks Dave

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