Hello,
I have a DIY CNC machine running mach3.
I’m new to mach3 and to CNC machines; I’m trying to mill a PCB.
I’m using a 0.015 stub end mill 2 flute
I’m having depth problems, I always cut to deep or two shallow.
I need to cut Z-0.0075 down from Z0 (Z0 = the end mill just touching the top
of the material).
My problem is that I’m breaking my end mills because I can’t set them correctly
down on the material. (I level my work area via 4 screws at the corners)
Should I build and use a touch off plate ? I don’t know what to use.
I’ve heard about some kind of spring loaded depth guard that presses on the material each plunge. Is there a web link, How do I ?
I’m also thinking about adding a DIY vacuum modification.
QUESTION:
Is there anything I can build that will provide realtime feedback of the current depth
so the program can make sure it’s always at Z–0.0075 ?
What other DIY solutions can I use ? I don’t want to spend $$$ on ready made solutions.
What about a pressure sensor ? That way I could do somthing like this ...
if ( getEndMillPSI ( Spindle_POS ( Z ) ) >= dec_to_PSI ( 0.0020 ) )
{
set_drill_depth(Z-0.0075);
}else{
JOG ( Z, ( Spindle_POS ( Z ) - 0.0001 ) );
}
HOW can I build a DIY pressure sensor ?
Thanks,
Guest
