Search found 5 matches

by bsteele1123
Tue Jun 28, 2022 9:16 pm
Forum: Centroid Acorn CNC Controller
Topic: High Speed XY Pen Plotter with Acorn Controller
Replies: 9
Views: 2259

Re: High Speed XY Pen Plotter with Acorn Controller

That is a nice quick plotter. What is moving the pen? In my case since the pen pressure is controlled by a voice coil there is no specific stop needed since the plotter will only apply a fixed amount of force when the pen is down. Was your plotter done with an ACORN also or some other controller?
by bsteele1123
Mon Jun 06, 2022 1:47 am
Forum: Centroid Acorn CNC Controller
Topic: High Speed XY Pen Plotter with Acorn Controller
Replies: 9
Views: 2259

Re: High Speed XY Pen Plotter with Acorn Controller

I did get this working in CNC router mode. The Spindle speed is used to set the pen pressure and the Z axis direction output is used to control when the pen moves up and down. The speed it flows through the Z axis commands are set based on the lowest pressure setting. The voice coil controller worke...
by bsteele1123
Thu Nov 11, 2021 7:49 pm
Forum: Centroid Acorn CNC Controller
Topic: High Speed XY Pen Plotter with Acorn Controller
Replies: 9
Views: 2259

Re: High Speed XY Pen Plotter with Acorn Controller

In this case I have an application that is top down for hardware--I can choose what I want to physically create pen pressure, calibrate pen pressure, etc. I am engineering those pieces to work extremely well. The software and to some extent CNC controller are more bottom up when it comes to actually...
by bsteele1123
Mon Nov 01, 2021 11:11 am
Forum: Centroid Acorn CNC Controller
Topic: High Speed XY Pen Plotter with Acorn Controller
Replies: 9
Views: 2259

Re: High Speed XY Pen Plotter with Acorn Controller

I am curious the best way to create this operation somewhat automatically when generating NC code from Fusion360. This is why I though I might include the PWM output as well. So for example I would set this up like a router and set it up with some nominal but very small z movement (G1 Zxx) for the r...
by bsteele1123
Sat Oct 23, 2021 1:39 pm
Forum: Centroid Acorn CNC Controller
Topic: High Speed XY Pen Plotter with Acorn Controller
Replies: 9
Views: 2259

High Speed XY Pen Plotter with Acorn Controller

I am looking for some advice for setting up a high speed pen plotter with the ACORN controller. The XY movement is very straightforward and no issues there. In this case it is a couple of servos that drive cables that drive XY stages. It is capable of very rapid movements. I plan on creating the pri...