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Bob:

I built an X-Y Table once where chain-drive was used to connect the MOTOR to
the X-screws, and the #35 chain gave out the first month! Connect the motor
directly to the end of the screw, using a proper shaft-coupler that permits
SOME a-axial or antiparallel human-frailty.

Hi Group,
I intend to use chain drive on my router.
Can anyone advise the correct spring tension needed for #25 chain (1/4")

Regards to all

Bob Thomas

--- In CAD_CAM_EDM_DRO@y..., JanRwl@A... wrote:

Bob:

I built an X-Y Table once where chain-drive was used to connect the MOTOR to
the X-screws, and the #35 chain gave out the first month! Connect the motor
directly to the end of the screw, using a proper shaft-coupler that permits
SOME a-axial or antiparallel human-frailty.

Jan,
i am going to use chain instead of leadscrew or rack and pinion. most likely in conjunction with cable to reduce inerta loads

Bob

At 13:16 30/10/2002 +0000, you wrote:

I built an X-Y Table once where chain-drive was used to connect the MOTOR to
the X-screws, and the #35 chain gave out the first month! Connect the motor
directly to the end of the screw, using a proper shaft-coupler that permits
SOME a-axial or antiparallel human-frailty.

...or as many others have done, use toothed "timing belt" pulleys.


Regards,
Tony