I like. It got that out of my skull and solved the noise and alignment issues. Next, I will be scaling this up to something just under 20 x 30 via the passthrough slot and making a few other tweaks.
Combining the black and white as one layer was my original intent. However, the way the paper edges and the foam lost during lasering work together gives a great result with a contrast layer underneath. So, I stopped there in the prior images.
These are more like my original intent…(which I like less than uncombined)
Foam core is really cool stuff. I used to work for an architecture firm here in Denver back in the early 2000’s and the model shop used a laser all the time cutting foam core to do study models. Actually that’s what inspired me to buy a laser for woodworking - but this reminded me of the early days - good stuff!
A search within this forum finds support for cutting it. I recently posted my setting on another foam board or foam core related thread. Should not discuss settings here.
Thanks, I will check those out. I see adafruit is offering a model with an output for position (analog) those might be a possible solution to the drift I was experiencing.
One could try to kerf correct but in my case, I like the way the loss of core material makes a curve from one face to the next. I do not think one could get a square edge with this stuff.
I think the Trinamic drivers also have an index output.
The SilentStepStick units I bought all have an index which can be used to monitor position on a driver level. It doesn’t account for steps lost though.
Another possible idea is to use a cheap position sensor like a Hall effect unit and write the code to move to index points.
You could also use a photo resistor and opaque material as an index wheel or even tiny holes in your pattern discs to do indexing.
Have you looked at Casey Curan’s work on IG. Uses GF with fabric and articulates intricate movements on clothing and in sculpture. Mesmerizing to watch though daunting to a beginner like me
