What the board cant do is measured by what it can do speeds of 1000mms are quite achievable with new steppers installed. I recommend paying the 40 usd for support, I’ve have the manual its written by him and is about 50 pages long and quite technical in places, it is made with the hobbyist in mind but still assumes you have some knowledge. But before you do anything with regards to a Cohesion board talk to Eric on facebook Messenger and tell him your issues and he will be able to help you. but I need one that you can actually get support for.

So now I look into cohesion 3d board and from the complaints I see about their support, I dont think ill go with them, I am looking for a recomendation for a board that I can add a z table to and maybe later a rotary. refund if they could fix the problem or a complete refund if they couldnt, guess what, they couldnt so Im sending it back. to make a long story short their tech support gave me info that would be great for an electronics tech and when i followed them the limit switches would not work and the follow up emails from china at 3 am were impossible to understand. The problem came when trying to hook up limit switches to their board, which does have a specific jst connecter plug on the board, its a 3 pin. Everything was ok untill I plugged an extra stepper motor in to test it, I could control the stepper motion in lightburn no problem. I finally got it up and running in order to use lightburn which I had already purched for another diode laser. the board they say comes with the install manual and is easy to install, NOT ! no manual was supplied and it took many emails to finally get a responce from them ( At that point I should have trusted my instinct and returned it) but NOOO. omtech on amazon touts their superior tech support etc. it was just ok until i tried to add a lightobject z table. I purchesed the omtech upgrade motherboard probably a month or so ago, and boy that was a big mistake.

K40 lightburn board