Re: Long X axis Method of travel.

Hi Jan and group, I have read this thread with interest able to I am
in the same situation.

I want to bulid a router the x=2,3m y=1,5 m z= 200 mm. Similar in
fashion at Dean Coulliard public some days ago.

I always had thought the best transmision system would be the proposed
by Jan Rawland, so it is the most expesive too.

I wanted to use the next screw in order to maintain budget low
http://www.baiz.net/avalible.htm

I thought that TR 40x6 will be suitable for my design, so I was
planning use dual angular-contact ball-bearings at both ends of screw
and good couplers.

So After read this thread I have a lot of doubts about this design
will work.

Looks like thoot belt drive or rack and pinion is most suitable. The
router basically is to cut wood and polycarbonate.

I would like to hear the last adive about this subject.
Another people in group with experience in big routers, Dakota built
one, with lead screws, sombebody knows dimension.

There are router photos in some place with the others transmision
system proposed.

Help about this subjet please.

Thanks in advance

--- In CAD_CAM_EDM_DRO@yahoogroups.com, JanRwl@A... wrote:
> In a message dated 11/13/2003 9:29:35 AM Central Standard Time,
> dexlabboy@l... writes:
> What would be a good method to drive this long lenght?
> 1.5" major-dia. ball-screw, 1/2" linear travel per turn, preloaded
ball-nuts.
> DUAL angular-contact ball-bearings at both ends of screw, and your
best
> choice of a "slop-free" coupling, even if timing-belt or
sprocket-chain.
>
>
> [Non-text portions of this message have been removed]