Web Goblin cnc has begun

[Web Goblin]

Here are a couple of pictures of the cooler unit.


Just to add this will probably hold around 25 litres and not 10 like I said in an earlier post. Got my sums a bit wrong.
I have made a little control unit with a couple of switches, an estop and a pot for controlling the speed of the spindle. I need to have a read through the VFD manual now to see what to set up for it to take an external input for start/stop and speed control.

Ian

[Jonathan]

Looks good. I could do with a box like that to put a coolant pump I acquired in.

I need to have a read through the VFD manual now to see what to set up for it to take an external input for start/stop and speed control.

Should be able to do it with the input the pot uses. Substitute the pot for the parallel port pin and use PWM output in mach. I'd put a capacitor (and possibly resistor in parallel) at the VFD from that pin to ground to smooth the PWM. It's all in the manual... you can do it with digital inputs but you probably wont have enough I/O on the parallel port to do that.