Messages

11

General Mach Discussion / Re: dual x axis direct drive jumpy

« on: August 17, 2008, 06:20:56 PM »

it's easy-cnc

12

General Mach Discussion / Re: dual x axis direct drive jumpy

« on: August 17, 2008, 06:20:12 PM »

it's microstepping

13

General Mach Discussion / Re: dual x axis direct drive jumpy

« on: August 16, 2008, 12:05:59 PM »

I'm not sure how to work with a Forum, I see I have 6 replies with questions I'll answer them all here??
Overloaded, It is a microstepping driver.
ostie01, yep thats her
uuccimi, parallel
hood, http://.easy-cnc.com

14

General Mach Discussion / Re: dual x axis direct drive jumpy

« on: August 15, 2008, 05:35:02 PM »

I'm not sure what you mean by link, physically connected motors or electronically connected or?

15

General Mach Discussion / dual x axis direct drive jumpy

« on: August 15, 2008, 05:07:04 PM »

I built a router with two direct drive stepper motors for the x axis. The machine is 10 feet long and 5 feet wide. I'm using Mach3 and a 4 axis driver from Mecntronis (easy cnc). I've set mach3 to use A axis as the slave axis of the x axis. The motors are using a timming belt systam and the dirive is direct so one revloution is 1.5 inches in the x direction. I've set it up and it cuts circles pokets and all that stuff pretty accurate but rough my y axis is an acme thread and runs about 4 reves per inch and seems smooth. The x axis is jumpy at low speed, you can hear it move it sounds like about a 30 40 herts pulse.

Is there any thing I can do to smooth this x axis out. on curves you can see each step the motor makes?
my thought is to make a couple of transmissions for the two motors so that each turns about 4 rev per in or so?
any thoughts would be appriciated.
Forrest