10 tpi screw

[scheek]

My x and Z axis are 14 TPI. My Y is 10 TPI. Would my CNC be more accurate with a 14 TPI on my Y-axis?

Too, my CNC works very good but my God... it is loud, especially when the Y axis is in motion. I suppose the wood framing along with the stepper motor gives it the roar. Does anyone have the problem?

[crane550]

You will lose resolution but not accuracy...

Leadscrew Pitch Tutorial

I just changed from 16TPI to 10TPI and then even further down to 2TPI.

[scheek]

Thanks. What about that roar?

[louieatienza]

Originally Posted by scheek My x and Z axis are 14 TPI. My Y is 10 TPI. Would my CNC be more accurate with a 14 TPI on my Y-axis? Too, my CNC works very good but my God... it is loud, especially when the Y axis is in motion. I suppose the wood framing along with the stepper motor gives it the roar. Does anyone have the problem?

There are a lot of folks here who run 5, 2, and even 1 (me) tpi with success. Without the router on, my machine is actually pretty quiet, even at 200ipm. I think your stepper has to spin really fast to have a good cutting speed without burning or melting what you are cutting, and you are losing torque. My first machine was also wood framed.

Your x and z have a theoretical accuracy of 3 ten-thousands of an inch (approximately) assuming you are using steppers, and you have to ask youself if you routinely hold these tolerances in the parts you make, or even, are your leadscrews are that precise or your backlash is smaller than that...

[DonFrambach]

Originally Posted by scheek Thanks. What about that roar?

Is the roar coming from your lead screws? If so, have you tried to lubricate them? My router made terrible noises until I lubricated my leadscrews.

[scheek]

I have not lubricated them. I will try that. thanks