Hello everyone! its been a bit scene i have been on here, for those who have not seen it, i created a flat coil winder using the duet controlled delta i built,
here is a few videos of it working:
https://www.youtube.com/watch?v=KP2G4fE0ssI
https://www.youtube.com/watch?v=yj8OHuxBzAg
it even made it to hackaday, that was cool,
https://hackaday.com/2018/06/16/delta-printer-morphs-into-cnc-flat-coil-winder/
any hoo, it would not be possible with out the Duet! i "sell" theses to everyone i talk to others about how much i love it and that the community here is one vital roll in its success! 🙂
Just thought i would post this here as i haven't posted in a while, thanks again to all those who contributed to this platform.
I do have a request though. in order for this to work correctly, i need to find a way to make a stepper motor turn the cam follower head in the direction that I'm trying to lay the wire, This way i can control precisely where i lay the wire and i dont have to rely on the wire to " pull" the cam around. right now there is an offset between the roller and the zero point of the Gcode / indefector.
Dose anyone know if there is a way i can use the extruder motor out put ( or an extra output to a driver) that i can automatically tell it to move in accordance to the direction that the endefector is moving?
The alternative is to offset the Gcode so that the cam follower is in the correct place. if i wanted to place the wire exactly, or make sharp corners i can have to offset this. very hard thing to do.
I thought about trying a drag knife type Gcode editor for corners. but that's not a good option. because the radius of arcs or any moment really is going to be off set.
so the best thing is to have a motor that can move the head around to make sure it fallows the current direction on the fly. then i can make the roller in the zero location and have no offset. right now there has to be an offset or the wire / roller will not work correctly.
If there is any possible way to do this with current duet functionality or G code script... please let me know,
if there is not please let me know if you'd be interested in making a script or some type of program / addition to the duet that can do this.
to be clear, I want to drive a stepper motor that would be turning the cam follower (360 deg) so it always was trailing the direction of travel. and for this to be done internally on the fly or from a gcode script that would add the extra g code to do this, using the already created G code for the wire placement.
This would also be helpful for a drag knife type tool...
here is just a photo of some # 40 AWG wire with a gap, this is a bifilar coil...
alt text
oh and i guess i did not update this thread with the addition of the 9 arms on the delta... i did this for more support on the CNC milling attachment i made.
https://www.youtube.com/watch?v=i_aMtAWiK64
Thanks for any input and help / feed back. positive criticism is welcome 😉
god bless!
~Russ Gries
