Machsupport Forum
General CNC Chat => Show"N"Tell ( What you have made with your CNC machine.) => Topic started by: magicniner on April 06, 2014, 05:47:30 AM
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I prototyped this manually on the lathe, (I don't have a CNC lathe yet) and found the 5 different internal diameters and depths plus threading the second (18.6 ID 8mm deep) section entirely do-able but didn't really fancy doing a batch of 10 or more that way.
I'd modelled the job in CAD as the back face has geometry which can't be turned - a closely spaced combination of straight and circular features.
Only after I'd CNCd the rear face did it occurr to me to flip the part and CNC profile the IDs, then thread milling crept into my mind and while I had the fixture set up picked up a 14tpi threadmill and cut the full thread in one pass.
Here's the first one off the mill -
(http://i135.photobucket.com/albums/q158/magicniner/96c70a10-0786-44b4-92e8-a40da8dd832c_zpsa585817f.jpg) (http://s135.photobucket.com/user/magicniner/media/96c70a10-0786-44b4-92e8-a40da8dd832c_zpsa585817f.jpg.html)
There was no reason not to bung it on the mill, it just seems I'm still dragging around my Manual Machinist's Mindset which has me thinking round parts should only be in a lathe - I'm now working on that ;D
- Nick
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Excellent work Nick.
You know what they say "CNC is only limited by our imagination" ;)
Tweakie.