RE: [CAD_CAM_EDM_DRO] Re: Backlash Fixes

Hi Dave,

Perhaps one of the small gas springs would be just the thing. They can be
obtained with many different forces and seem more equal in force throughout
their travel.

Thanks,

Ward M.

wardmerk@... <mailto:wardmerk@...>



#)-----Original Message-----
#)From: ym_wong@... [mailto:ym_wong@...]
#)Sent: Thursday, October 11, 2001 1:22 PM
#)To: CAD_CAM_EDM_DRO@yahoogroups.com
#)Subject: [CAD_CAM_EDM_DRO] Re: Backlash Fixes
#)
#)
#)--- In CAD_CAM_EDM_DRO@y..., dkowalcz@d... wrote:
#)
#)> It's a small aluminum lever with its fulcrum mounted on an "L"
#)> shaped bracket on the carriage. One side is pulled by a strong
#)> tension spring.
#)>
#)> The other side is attached to the cross-slide by a short cable.
#)>
#)> Why so complicated? Well, regular tension springs don't deliver
#)> constant force over their span. Instead of using 3" of travel on
#)the
#)> spring this gadget makes it 1/2" through the lever, so the force on
#)> the slide is more consistent.
#)>
#)> If you need a better picture, I can take one when I get home as
#)my
#)> lathe is apart right now for maintenance.
#)>
#)> Dave Kowalczyk
#)> Seattle WA
#)
#)Yes, a picture or two would be great. May be one showing it in
#)relation to the carriage & cross-slide, i.e. perhaps a bit further
#)away so I can see the "bigger picture". A closeup of the assembly
#)would also be nice as well, however.
#)
#)How much force is the spring applying to the cross-slide, do you have
#)a guess? I assume it must be greater than what the cross-slide
#)experiences during cutting. I wonder how much that would be? Perhaps
#)a better question is how did you pick your spring?
#)
#)Thanks.
#)
#)ym
#)
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