Messages

1

G-Code, CAD, and CAM discussions / Re: A-axis & Z-axis grinding

« on: June 01, 2017, 03:45:20 AM »

So
A goes round 0-360 every round and only the Z is changed.
What is the best way to mach 3 to write it=
is it 0-360-0-360 with 0.2deg resolution or 1 or 10deg or ?
Or do I put it like 0-360-720-1080....
And is there a difference if I put these on different lines to get it smoother?
like:
A0.2
Z-0.5??

2

G-Code, CAD, and CAM discussions / A-axis & Z-axis grinding

« on: May 30, 2017, 03:03:39 PM »

Hello

We have camshaft grinder with CSMIO & DELTA servos & mach3.

Problem is that I need more tips to have A axis smooth with Z. I heard that 13rpm could be the limit to have smooth movement.

I have tuned x&Z axis to 2000steps per mm velocity 5000 and accel 1500. A axis 333.333 steps per deg and vel 25000 accel very high. Axes are very fast with jogging. Tried that use radius for feedrate option. Feedrate i tried something like 20000 but when running feedrate fluctuates all the time and A axle jerks.Best feedrate is couple of hundred.
 So I now my gcode sucks but how I change it? s

We probed the camshaft 0-360deg with 0.2deg resolution. Then tried to make layers(0.2mm) to achieve the "bulk" camshaft.
I am now also trying to check the point cloud with cloudcompare&bobcad to have real gcode...
One way could be to make script that contains the probed shaft gcode and then we just call it with offset? VB script cannot take this much lines i guess.
So this code is not working:
A0 0
A0.2 Z-0.1
A0.4 Z-0.2
..
A360 Z0
.....
...
A0 -Z15.22
A0.2 -Z15.25

This is not better:
A0 F20000
Z-15.050 F1000
A0.2 F20000
Z-15.100 F1000
A0.4 F20000
.....

3

General Mach Discussion / Mach3 with kisslicer (3d printing)

« on: February 05, 2014, 11:00:52 AM »

Hi

I am trying to get dual extruder working nicely with mach3. I made work offset so that when switching to another extruder it applys offset. Thats ok.

 Now I would need to the extruder to suck filament for about 6mm when switching extruder. But how? A and B "channels"  values are increasing all the time when printing.

So how I make for example A channel value 6mm smaller when changing to B and then add 6mm back to the value when changing back to A?

4

Show"N"Tell ( Your Machines) / Re: mach3 3D printer

« on: January 25, 2014, 04:45:26 AM »

Hi
Nice!
I made 3d printer with mach3 as well. Now I am trying to get dual extruder to work but kisslicer´s maker is missing and I have to search an alternative program.
What program do you use for slicing?

I am not convinced with slic3r and perhaps cura would do the job but there has to be post processing plugin to convert the GCODE to fit the mach3.
Has anybody already done this plugin?