I am putting together a project to make a linear stepper driven measure and stop for a drop saw.
It will allow the user to type in a number and move a stepper motor driven panel (like a pusher) closer to the drop saw give the supplied measurement.
I would like a touch screen but that is probably more than I am aiming for at the very start. I am not sure if my best option is to go for an Arduino (I have some ESP32s and a Mega) so that I can just run the stepper off a driver or go full blown Pi setup and feed out to a GRBL controller.
All the program needs to do is locate home (with limit switch) and move stepper based on a numerical input.
I am not fixed on any ideas just yet, and there is no commercial purpose for this, it’s more of something I want to build, because well… no reason except that I built it - I am sure all of you on here would understand that
Any advice would be greatly appreciated!
Sounds like an awesome project! I imagine that will speed things up a huge amount in the workshop.
An ESP32 could leave your options open in the future for using various types of screens.
In the mechanical realm, I would definitely make sure a worm screw is involved somewhere so the measurements dont alter as you do more cuts. A ‘breaking’ system where the jig is locked in place could also work great.
I’m keen to see where this goes Sean!!
Thanks Liam for the great addition of the braking system! That would be neat as. Esp32 allows me a bit more freedom and from what I have read it might be useful using a queue system to operate the interface and send the movement to the stepper on individual threads.
Ooooh yeah a queuing system would be amazing to see in action. As in threads on the ESP32? That sounds like a very interesting way to make sure that they’re firing off!
Cool project! I watched an awesome video on a CNC table saw a while back that you might be interested in:
Good luck with your project, keen to see this develop!