Have you tried 32x microstepping already? Any improvements?
@linas_capas
I use 1/4 step in x and y
in Z i use 1/2 step.
Please don’t forget the Motor torque with high microstepping!!!
Kind regards
DCM
Hy guys,
here are the Winners of the K8200/3Drag Contest from Open-electronics!
open-electronics.org/here-ar … g-contest/
Kind regards,
DCM
gr8 job on the mods
have you uploaded stl files for printed mods anywhere ?
Hi DCM,
for your CNC work, do you use the PCBMill Software? Since it only supports older gerber file formats i seem to have some issues with getting working GCode.
any tips/tricks?
[quote=“DCM”]Hello all,
I investigate much time to upgrade my Printer for Milling and Drilling different materials.
Specially for the 3Drag/K8200 Contest!!!
See Pictures below…
The new Printer Design…
K8200 as Milling Machine
PCB Drilling
Set Z-axis to Zero with a Copper plate
Drilled and Milled PCB
New Spindle holder, because the black one is not strong enough.
I decided to make a dust boot to prevent the cleaning after milling.
A Vacuum Cleaner is working through the flexible hose!!
Distribution Unit
Milled fiber glass 1,5mm
Dust boot parts and complete Assembly.
Now I’m using a Proxxon Spindle with longer shaft.
On the Printer table I’m using a wooden face milled plate.
After milling a couple of PCB’s and some different plate’s, it turned out that the printer construction is to weak
for CNC milling. A lightweight fiber glass table has to be designed and manufactured.
UHU300 seemed to be the best solution for glueing the parts together.
To get an exact table movement with low fit tolerance, new linear rails and bearings have to be implemented.
Due to the stronger construction, motors and belts have to be moved to other locations.
Ready for assembling!!!
Removing of old Table construction.
Printer with new design…
Simple modifying of the Mainborad, to get a higher torque by decreasing the microsteps.
Enable the jumper selection by cutting the copper between them.
Inserting some jumper’s and solder them.
Chart for changing the Microsteps
In addition to the new table, a vacuumplate became more and more interesting…
So let’s making this wish happen.
Finally it fits perfect to the table and is working very well!!!
Initial milling a wooden plate with the force of the vacuum…
Now, the heatbed has to be remodified to keep the mainfunction…3D Printing.
The new wiring of the Heatbed…
In addition, the Z-axis had to be updated, to absorbe the recoil of the milling spindle…
I will also upload a video on Youtube, when it’s done i will let you know…
Hope you enjoyed it!!!
Best Regards
DCM[/quote]
Hello,
I was wondering which software you have used to create the g code for milling the parts, not for the pcb milling.
Thanks