I m lagging a little behind with updating this thread.
I'm currently working on the electronics side, the hardware is almost done. Almost because it was done already, but I under-dimensioned the guiding rods. That translates into too much sagging when the traveler is in the middle. It's not much, like 2mm, but in terms of my CNC world, 2mm is a life.
So I need to change bushes (haven't lathed them all, lucky me) and increase the hole diameter. That sounds easy but have you ever tried drilling a 24mm hole with a precision of 0.1mm? that's quite impossible to do is manually, so that's when a proper CNC milling machine comes in handy but it just takes time. I'm hoping to get the stuff done by next week.
I have installed auto-heat control features, i.e. the computer regulates the heat of the bow automatically, but it can also be switched to manual mode.
I placed an LCD display to view parameters and
a bunch of swichtes for safety and a couple of fuses to make it secure.
The hardware part is quite tricky if you wanna make it rigid, but so far it has been an experience. I'm not an electronics guy at all, but so far they haven't given me any problems. Reducing play, drilling or routing the holes, creating proper drawings was and is the main tone of this project.
When I see other people just using normal screws as lead screw, some hombrew ballbearing linear travellers, it works, of course, but I aim for something a bit more solid. This is really tricky to achieve.
So if anyone is doubting whether to get a cutter, be prepared to really really spend some time on the structure.
A big thumbs up for Gilles Muller, the creator of the GMFC software (cutting software) and Dave Rigotti. Now that's what I call outstanding / jumping jacks support.
I bought the heck of a lot of wires. hehee