Rack teeth are easy to machine because they have straight sides to mesh with
involute gear teeth.
Another method like using the belt is a roller chain stretched between anchor
points and looped under two idlers and over a drive sprocket between and above
or below the idlers.
With any rack or rack-like drive a gantry can have zero racking problems by
connecting the drive on both sides with a shaft.
On Tuesday, April 23, 2019, 7:16:58 AM MDT, Leonardo Marsaglia
<ldmarsag...@gmail.com> wrote:
Well I think gluing a belt that long and wide with a proper jig or the
right equipment could be a pain in the ass so I'm thinking about what
Roland sugested. To machine the rack in wich the belt will be running. That
way I can guarantee zero strecth and perfect engagament.
I plan to make the racks (I may be can call it linear pulley? or infinite
diameter pulley) out of 6061 aluminum. Then I can set them up like a normal
rack but with the benefits of the servobelt system. I know this is not the
quickest solution but I can machine the racks easily here in the shop so
that's not a big problem.
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