90W Laser Cutter From Scratch | Fine-Tuning & Testing

In this video, I demonstrate all the tests I performed while fine-tuning and adjusting my Y-400 laser cutter. There is a lot of information in this video, so pause the video or rewind and watch again if you miss something! If you have any questions about any of the tests, leave a comment below. The test files I used are linked below. If you use the files, I provide below, make sure to adjust parameters accordingly for your laser tube wattage! A couple of notes about the tests: -- The laser pointer shown in the third mirror adjustment section is the "Co2 Laser Alignment Tool" from American Photonics (link below; not sponsored). Mine was the 24mm version for a C Series laser head. Check out their videos for more info! -- You could use the LED pointer alignment tool to align all the mirrors, but since I have already aligned mirror one and two, I just used it to align mirror three. Theoretically (or rather mathematically), the step length for the X and Y axis SHOULD be 9.375 with the 30 tooth pulleys on the X and Y axis. Your number should be close to the theoretical number but different due to variances such as belt tightness. More info: https://forum.lightburnsoftware.com/t... -- In the Z step length test, I used the bottom of the X rails as a reference. Hard to tell because I couldn't get a great camera angle. -- I adjusted the 100mm and 200mm offset a bit more after what is shown in the scan test. -- The idea for the kerf test came from this post: https://community.glowforge.com/t/how.... -- I forgot to flip the last "B" in the kerf test. Oops. -- I noticed while editing that the Z-axis moved while the kerf test was running. I had an unnecessary Z offset set on one of the layers. 00:00 Third Mirror Fine-Tuning 01:31 X-Y Step Length Method 1 03:01 X-Y Step Length Method 2 04:21 Z Step Length 05:00 Acceleration Adjustment 06:21 Focus Test 07:58 Scanning Offset Test 10:17 Subscribe Test 10:35 Backlash Test 11:43 Kerf Test 12:37 Engraving Power Test 13:26 Cut Power Test 🎬 LASER CUTTER PLAYLIST:    • 90W Laser Cutter From Scratch   🚀 SUPPORT MY CHANNEL: https://paypal.me/acwrightdesign --------------------------------- 🍺 FOLLOW ME OR GET IN TOUCH Instagram:   / acwrightdesign   Twitter:   / acwrightdesign   Pinterest:   / acwrightdesign   Github: https://github.com/acwright 📜 PLANS AND DOCS Further Fabrication:    / @furtherfabrication   🤖 FILES AND DOWNLOADS Lightburn Files: https://www.thingiverse.com/thing:474... 📦 ITEMS I USED IN THIS VIDEO As an Amazon Associate, I earn from qualifying purchases. I get commissions for purchases made through links in this post. They help me to be able to create more content for you. Thank you for your support! Alignment Tool: https://american-photonics.myshopify.... 300mm Ruler: https://amzn.to/3dgOkGw Calipers: https://amzn.to/2MZHA5d Digital Microscope: https://amzn.to/3jSQddJ Binder rings: https://amzn.to/2N0xW2h Sponges: https://amzn.to/3jPvJCF