Re: Timing Pulleys - Chain & sprockets?

Mark,
I've wondered the same thing.
What's the downside, if any, to using small chain & sprockets vs.
using toothed belts and pulleys? Backlash? Cost? I'm sure chains
would make more noise.
I saw a picture of a router table a while back that drove the gantry
with an open-ended stationary roller chain looped between two idler
sprockets and the drive sprocket. All three sprockets were mounted
on the gantry and the chain was stretched along the length of the
table.
Would appreciate hearing from anyone who's used a setup like this.
I've never heard of or seen the X & Y motors on a mill driving the
leadscrews with chain. I suppose that should give me a clue but I
still wonder....
Ralph Wenzl


--- In CAD_CAM_EDM_DRO@yahoogroups.com, Markwayne <markwayne@m...>
wrote:

> Would it be nuts to use roller chain and sprockets in small sizes,

like

> 10 or 20.
>
> Mark
>