Hello Zax, hello everyone,
I promised you guys to write again after rebuilding my xy plotter. The previous discussions were about the non GRBL compatibility of my "Me Orion" Makeblock control board. I decided to follow the forums advice and buy a complete new controller set for little money. Which is what I did. I bought a chinese Keyestudio controller, which started smoking immediately after connecting it. I am still wondering what went wrong, or maybe I should say what was wrong. Everybody makes mistakes, but this was too simple. Well, who cares, I sent it back. Long live Amazon.
Then I realized that I could possibly solve my problem by using an obsolete Uno together with the original (nicely made) stepper drivers. Since I did not want to redo the good looking plotter cabling, based on RJ45 connectors, for which I happened to have a set of pliers, I made a simple Arduino shield, added a couple of RJ 45 females and connected the wires to the corresponding Arduino pins. I Xloaded Grbl 1.1e and the machine worked like a dream from minute one.
So now I am (finally) fully enjoying T2laser. Hooray again for Zax. Well done!
I just have a problem with Homing the plotter, using the end switches. Because I have no Z-axis, the firmware hangs, sending Z-steps, waiting for the not existing end switch to close. I didn't have time to figure out if a simple solution exists, without rebuilding the firmware. So I decided to forget about the homing cycle for now and reposition by hand. I have a switch to interrupt the motor power so I can position the head freely. I just have to "Home (machine)" in T2laser a lot, for which I am humbly asking if Zax might consider adding a ctrl-H key in a future version for that action, avoiding using the menu all the time. Btw, maybe call it "set Home (machine)", as we also have "set Origin (workpiece). And possibly add ctrl-O and ctrl-F as well?? because I experiment a lot with the feed rate.
With my 3 watt laser I can cut through 4mm mdf board, which is useful for certain projects. However I need to repeat the cutting cycle a number of times, which may take a while. Therefore I would be very helpful to have the Multi Pass counter displayed somewhere.