10/28/2023 0 Comments Woodpecker 3.2 grbl probeSo today I decided to do a little bit of testing with the CNC shield and my Y axis drive. This three-axis control, GRBL based Woodpecker CNC V3.4 Control Board is compatible with many popular mini-desktop CNC routers and laser engravers. To start off, one of the issues I have is that I do not know the specs of the motor that I have. Here is a pic:ĭid quite a bit of searching over the past week to try and find any information, and I can't seem to find what I need. I was able to get GRBL loaded on to the UNO board fine and connect to it through PUTTY. I then installed just the Y axis driver and connected a 12 volt power supply for starters. I was able to get the Y axis screw turning by sending some Y axis commands such as "Y20" or "Y-20". The pinout (left to right) is VCC, empty, GND, RST. The on-board ISP is unpopulated 1×6 connector right below the 2×17 header. Usual ISP connectors comes to 2,54 mm (0,1 or 100 mils) pitch. Second one, the ISP header IS present on the PCB, but is has 1,27mm (0,05 or 50 mils) pitch. When I ran it initially I didn't have the Y axis platter mount secured to anything, so that would just spin with the screw. Woodpecker 2.8 GRBL board and ISP connector. The problem I have is that if I hold the platter mount giving the screw even the slightest bit of resistance, the motor will spin for half a second and then start making a whining/buzzing noise and will just vibrate a bit. Once the motor starts to slow down while stopping, the screw will stop whining and spin slightly at the end of the stop.
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