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Results tagged with cnc
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user 35530
Computer Numerical Control: the computer or digital control of tools in a machine shop like lathes, mills and drill presses.
13
votes
Accepted
Cut 3D chunk out of PCB?
Yes, it can be done. It's (often) called Z-axis milling. For my usual Chinese supplier it is a standard option and adds USD $100-$150 to a small order of 2mm thick PCBs.
You could also ask for a top …
1
vote
Stepper Motors getting very hot after use
The motor current is controlled by the driver. You can set the pot on the driver board to set the current as shown in the datasheet:
This is accomplished inside the driver chip by driving the coil …
4
votes
Accepted
CNC feedback mechanism
Good CNC systems at least have ball screws which don't suffer from backlash because they are preloaded with more pressure than the motion will require. … If you're using GRBL, Mach 3, Linux CNC you'll probably use an edge finder, coaxial indicator etc. just like you would on a manual machine. …
2
votes
Using Chinese 3018 CNC mill with KiCAD and FlatCAM for PCBs - "tool change"
Use the Excellon preprocessor in Flatcam that excludes the M6 code, which should be GRBL_11_no_M6 or something similar.
Set up your desired tool change position too, obviously.
3
votes
Accepted
Can someone tell me how i make the MACH3 software to communicate with this board?
The USB port is only there to provide power for the 5V relay and buffers (maybe just the buffers, there appears to be a voltage regulator on the board as well). This is a so-called "breakout board"
Th …
5
votes
How can I convert ±10 V input to 0-10 V w/ run/stop/reverse signals?
Here is essentially @Carl's idea using a small number of inexpensive components. Up to you to convert the +/-11V signals into something your controller will accept. Below about +/-120mV (1.2% of full …