Re: [CAD_CAM_EDM_DRO] Some pictures of a retrofit

I notice that those stepper motors were 150 ox in motors. I would suggest
300 oz inches would be better. I put those (300) on my retrofit and they
worked very well. One other thing you may want to do is the replace the X-Y
leadscrews with ballscrews. On my mill drill I found the original acme lead
screws had a pitch error of .001 per in and .02 back lash. With ballscrews
I have <.002 and the pitch is right on. I also solved the mill drill quill
backlash problem (.02) by modifying the pinion shaft and making some simple
eccentric bushing for the pinion shaft. I have a write up on it somewhere.
It was easier than adding ballscrews to drive the quill.
Dan
-----Original Message-----
From: Rich <ibrich2000@...>
To: CAD_CAM_EDM_DRO <CAD_CAM_EDM_DRO@egroups.com>
Date: Sunday, May 07, 2000 4:12 PM
Subject: [CAD_CAM_EDM_DRO] Some pictures of a retrofit

>
>Group,
>
>I was talking to a manufacture of a CNC controller and they invited me
>to come to their shop and look at a HF mill that had been retrofit.
>This weekend I was trying to figure out how the free web storage space,
>from my provider, worked . Here are some pictures I took with my Sony
>Camera: http://members.home.net/ibrich2000/test.html. Their setup looks
>fairly simple. So much so I think will try to retrofit rather than buy
>one of the small CNC mills. Perhaps, someone else on the list will find
>the pictures helpful.
>
>Rich
>
>
>
>
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