CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Building a small 4th axis

Posted by Tony Jeffree
on 2003-06-04 08:30:33 UTC
I think it is a tad on the large side for the mill Graham is planning to
use it with. The Proxxon mills are significantly smaller than the Sherline.

Regards,
Tony

At 15:00 04/06/2003 +0000, you wrote:
>4 inch rotarty table. Harbor freight.
>
>http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47052
>
>on sale now for $74.99 including shipping.
>
>
>ITEM 47052-2VGA will get it at that price if you "order from printed
>catalogue" on the website.
>
>
>
>
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler" <eexgs@n...>
>wrote:
> >
> > I have been enjoying milling small 3D parts on my Proxxon very much
> > and have been thinking about making a 4th axis for it.
> >
> > I have a 4th axis stepper driver so that is no problem but need a
> > small rotary table. For starters and to learn the process I will
> > probably try milling some foam or wax mounted with double sided on
>a
> > simple plate mounted directly to the stepper motor shaft. I will
> > only have 400 "degrees" resolution but it will get me going.
> >
> > Ultimately I want to build a tiny rotary table possibly still
>without
> > chuck that will give finer angular resolution. I have some Nema17
> > and Nema23 steppers that would seem to suit the task on this tiny
> > mill but no real ideas for the rotary part.
> >
> > My questions:
> >
> > 1. What sort of angular resolution is recommended for general as
>well
> > as perhaps gear cutting processes?
> > 2. How much of an issue is backlash? Can this be avoided by
>rotating
> > in one direction only?
> > 3. Is a simple worm gear ok?
> > 4. Are there any gearboxes already available at a low price that
>will
> > fit the bill?
> >
> > I think that's all I need to know but any tips appreciated.
> >
> > Cheers,
> >
> > Graham
> >
> > p.s. My mill is much more quiet now :)
>
>
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Regards,
Tony

Discussion Thread

Graham Stabler 2003-06-04 06:37:12 UTC Building a small 4th axis stevenson_engineers 2003-06-04 06:56:01 UTC Re: Building a small 4th axis Graham Stabler 2003-06-04 07:05:23 UTC Re: Building a small 4th axis Tony Jeffree 2003-06-04 07:20:15 UTC Re: [CAD_CAM_EDM_DRO] Building a small 4th axis turbulatordude 2003-06-04 08:01:26 UTC Re: Building a small 4th axis Tony Jeffree 2003-06-04 08:30:33 UTC Re: [CAD_CAM_EDM_DRO] Re: Building a small 4th axis Steven Ciciora 2003-06-04 08:37:03 UTC Machining Ball Screws wanliker@a... 2003-06-04 09:29:47 UTC Building a small 4th axis Graham Stabler 2003-06-04 10:03:07 UTC Re: Building a small 4th axis Larry Ragan 2003-06-04 10:04:54 UTC RE: [CAD_CAM_EDM_DRO] Machining Ball Screws Paul 2003-06-04 10:27:04 UTC Re: [CAD_CAM_EDM_DRO] Re: Building a small 4th axis Paul 2003-06-04 10:27:52 UTC Re: [CAD_CAM_EDM_DRO] Machining Ball Screws turbulatordude 2003-06-04 10:35:22 UTC Re: Machining Ball Screws Tony Jeffree 2003-06-04 10:47:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Building a small 4th axis Indy123456 2003-06-04 11:07:40 UTC Re: Machining Ball Screws stevenson_engineers 2003-06-04 11:10:21 UTC Re: Building a small 4th axis Alan Marconett KM6VV 2003-06-04 11:16:43 UTC Re: [CAD_CAM_EDM_DRO] Building a small 4th axis Tony Jeffree 2003-06-04 11:25:43 UTC Re: [CAD_CAM_EDM_DRO] Building a small 4th axis Alan Marconett KM6VV 2003-06-04 11:59:20 UTC Re: [CAD_CAM_EDM_DRO] Building a small 4th axis Tony Jeffree 2003-06-04 12:04:20 UTC Re: [CAD_CAM_EDM_DRO] Building a small 4th axis mayfieldtm 2003-06-04 12:23:37 UTC Re: Machining Ball Screws Steven Ciciora 2003-06-04 12:48:40 UTC Re: [CAD_CAM_EDM_DRO] Re: Machining Ball Screws Dan Mauch 2003-06-04 13:41:20 UTC RE: [CAD_CAM_EDM_DRO] Re: Machining Ball Screws Torsten 2003-06-05 07:12:53 UTC Re: Machining Ball Screws Larry Nicks 2003-06-05 18:34:03 UTC Re: Machining Ball Screws