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Greetings from India

I am using a UC100 with Mach3 on Windows 7. Currently when i click the ref all home button, the arm moves till it hits the limit switch and then moves forward 5mm. How can i change this backoff distance to 2mm?

Please suggest.

I read somewhere that you need to edit the vb script in the ref all home button. Is that true? If yes, what should i include in the code?

Thank you

Mach3 does not have a backoff setting. It backs off until the switch opens.

Can I maybe reduce the speed of the motor once the limit switch is triggered? A previous installation of mine did not have this big of a movement after hitting the limit switch

sanj1505in wrote:Greetings from India

I am using a UC100 with Mach3 on Windows 7. Currently when i click the ref all home button, the arm moves till it hits the limit switch and then moves forward 5mm. How can i change this backoff distance to 2mm?

Please suggest.

I read somewhere that you need to edit the vb script in the ref all home button. Is that true? If yes, what should i include in the code?

Thank you

Fig, 5.6.1 on page 5-30 (more or less) of the Mach operating manual.
Homing/limits, in same tab as ports/pins and motor tuning.
There's a "back off" and a speed setting in there.
Don't know what they actually do but have a fiddle with it and see.

There's a "back off" and a speed setting in there.

No, there is not. There's a Home Offset, but no "backoff".

ger21 wrote:

There's a "back off" and a speed setting in there.

No, there is not. There's a Home Offset, but no "backoff".

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Ah. "off" is offet, not a back "off". Gotcha.
Never tried it.