I have installed OpenBuildsFusion360PostGrbl.cps per the instructions and Fusion now produces a .gcode file that OpenBuilds Control will load and execute except for Z moves which are being ignored. How should an Acro 1510 be configured to allow use of the Z axis? None of the options available in the wizard fit my setup for tooling, I need a function like a router or pen plotter where the tool is lifted while moving between tool paths. I can jog and home Z but it never does anything after that. Is there a configuration file that can be imported into Fusion to set all the machine perameters or does this have to be manually input?
No fault light but the stepper is getting hot and I have the current all the way down, I guess BlackBox doesn't like Creality steppers. Who makes Nema17 steppers that will work properly with the BlackBox. I attempted a linear rail with a Nema11 but it also gets hot and frequently stalls or goes the wrong direction when jogging.
Brand doesn't matter. Electrical specs does. Ideally 3-6v coils, 1.7-3.2A Max current rating, 1-4mH inductance (lower is better) - that would be the ideal motors - if it's specs falls in those ranges. BlackBox outputs at minimum 1.2A (good for a 1.7A motor) 100s of manufacturers, just get a good 1.7A+ motor
so, choose 'router' as the tool since it must act like a router. that should give you Z control from gcode. then set parameter $32 to 1 since it must act like a laser when cutting, that gives laser power control during cut moves and off during rapid moves. on the fusion side, the post processor has options for lasers and plasmas, if you hover your mouse over each option it will popup help, read all of it, knowledge is power and from the change log at https://github.com/OpenBuilds/OpenBuilds-Fusion360-Postprocessor Select 'LASER: use Z motions at start and end' to have full Z movement with laser and plasma cuts
Thank you David, That is exactly what I need. Not sure I will use the $32 = 1 setting as my cutter is neither laser or router, its more of a micro jigsaw but having Z axis control should allow lifting the cutter clear of the material during rapids. I don't think attempting to control the RC speed controller for the cutter motor is something that is easily done via CNC control software. Every one of these cutters I have seen uses a servo tester to set the controller output and the cutter runs constantly.
oh my mistake, I saw 'ACRO' and assumed laser. You're using a reciprocating pin cutter so you want $32=0 for sure. You should be able to control speed from the X32, you may need to change some of the PWM parameters $33=<float> : default from DEFAULT_SPINDLE_PWM_FREQ, range driver dependent. Spindle PWM frequency i Hz (from LPC port). (I'd start at 400 Hz since that is what most digital servos prefer, and old analogs prefer lower rates) $34=<n> : default from DEFAULT_SPINDLE_PWM_OFF_VALUE, range 0 - 100. Spindle off PWM duty cycle in percent (from LPC port). $35=<n> : default from DEFAULT_SPINDLE_PWM_MIN_VALUE, range 0 - 100. Spindle minimum PWM duty cycle in percent.
We have the parameters for normal servos here docs:blackbox-x32:connect-rc-servo [OpenBuilds Documentation]
