MMcCubbing
New member
- Joined
- Jan 4, 2021
- Messages
- 11
- Points
- 3
The title sums things up pretty well, but let me give you some background.
I am pretty much a complete newbie to everything electronic, mechanical, and optical. I have some background in computer programming but have largely stayed out of the hardware side of things. I have built a Lowrider v2, a CNC machine, based on the designs from V1 Engineering. The machine is working well and I have now shifted my focus to adding a laser to it. I am working based on the "The 2.8 watt, $100 Laser Upgrade for MPCNC" guide from Leo69, using an NDB7875 445nm Diode from DTR, and a 3A TTL driver from techhood. The diode is not yet connected as I have gotten stuck calibrating the driver with a test load.
I am using a RABMo 1.4a as the control board for the Lowrider, and the pins on it are outputting the correct signal (0-5V) as I adjust the laser power from 0-255.
I am on the second last page of the guide and have a test load set up based on that guide and am trying to adjust the trimpot to calibrate the driver but can't get it to put out more than 0.4A when it says to be calibrating it to 1.7A. Given that I'm a newbie, I'm assuming that I'm probably missing something obvious but I can't for the life of me figure out what it is.
I can't upload the pictures to the forum as they're too large but here is a link to an album with my driver and test load. (C&P as I don't have the post count to actually link, sorry)
photos.app.goo.gl/UewZdNEgRBLjBmrLA
PS: I did try searching the forums but couldn't find anything relevant.
I am pretty much a complete newbie to everything electronic, mechanical, and optical. I have some background in computer programming but have largely stayed out of the hardware side of things. I have built a Lowrider v2, a CNC machine, based on the designs from V1 Engineering. The machine is working well and I have now shifted my focus to adding a laser to it. I am working based on the "The 2.8 watt, $100 Laser Upgrade for MPCNC" guide from Leo69, using an NDB7875 445nm Diode from DTR, and a 3A TTL driver from techhood. The diode is not yet connected as I have gotten stuck calibrating the driver with a test load.
I am using a RABMo 1.4a as the control board for the Lowrider, and the pins on it are outputting the correct signal (0-5V) as I adjust the laser power from 0-255.
I am on the second last page of the guide and have a test load set up based on that guide and am trying to adjust the trimpot to calibrate the driver but can't get it to put out more than 0.4A when it says to be calibrating it to 1.7A. Given that I'm a newbie, I'm assuming that I'm probably missing something obvious but I can't for the life of me figure out what it is.
I can't upload the pictures to the forum as they're too large but here is a link to an album with my driver and test load. (C&P as I don't have the post count to actually link, sorry)
photos.app.goo.gl/UewZdNEgRBLjBmrLA
PS: I did try searching the forums but couldn't find anything relevant.