Hello Guest it is March 28, 2024, 07:33:12 PM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - egropp

Pages: 1
1
G-Code, CAD, and CAM discussions / MachIII GCode Leadin questions
« on: April 22, 2013, 08:44:58 AM »
I hope this is a quick question.
I am trying to learn and understand G-Code and have a bit of a sticking point...

If I look at the toolpath in MachIII, I can see that there are circular leadins for a part, I can zoom into the part and see in the toolpath that the leadin is a cricular leadin, but when i look at the G-Code for that same spot, there is nothing to tell me that there is a leadin (other than the tool starts at that point).
Where in G-Code can I see the leading definitions? I used LazyCam to post the code, selected "Straight" leadins and a tool offset of .125.
I cannot seem to locate how or where in the code the actaul leadin is defined. If I step through the code line by line, i see where the tool goes to the start point, makes the cut around the part then leaves.

Does MachIII make assumptions about the leadins or is it actually defined somewhere?
Any information here would be great.

2
General Mach Discussion / Steppers chatter when running slow
« on: April 16, 2013, 06:39:27 PM »
Need a bit of advice here.. I have 3 "Japan Servo" Stepper motors with probostep drivers running a foam cutting table with a dremel router

KP56LM2-097 from JAPAN SERVO
Parameters:
Unipolar / 2 phases 6 Volts DC (nom) 1.2 Amps / Phase (nom) 2.4 Amps / Motor 1.8 Degree/Step

Each motor is driven by an independant power brick 18v @ 4.9amp the probostep driver are set to limit current to just at 1 amp (much higher and they get real hot)
they seem to run fine at higher speeds (cutting a straight line) but seem to chatter a bit when cutting a curved line.

I can duplicate this by running them individually from the MDI tab, when i slow the speed to about 1.26 to 1.3 they chatter in the same way when cutting parts. This is throwing the cuts WAY off. 

Above or below that they work fine.

Cna anyone sghed some light on this?

Pages: 1