Laser Focus Lens Spacer - PART 3 of 3 - Testing and results
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- Опубликовано: 17 окт 2024
- This video is Part 3 of 3 showing how I set and tested the focus, plus the results I was able to obtain.
If you haven’t done so yet I suggest watching Video part 1 first as it explains the background behind this project.
: • Laser Focus Lens Space...
Again I don’t in any way present this as a definitive answer regarding obtaining a perfect laser focus for cutting and engraving. Instead the videos relate my developments and how I managed to achieve satisfying results based on the equipment I have available and my own personal experience. The dimensions stated may not work for everyone as there are many variables involved however I present this as one concept that may be a starting point for others to expand on for their own needs.
A huge thank you to Endurance Laser Labs. Their community of amazing and helpful people from all over the world is unparalleled by any other manufacturer of similar products.
endurancelasers...
Where exactly are you measuring the focus distance from? Lowest part of the lens, lowest part of the new spacer, top of the spacer... Thanks.
the 34.6mm is measuring from the top (back) of the spacer, that is where the spacer makes contact with the laser body.
Thanks for the effort explaining the spacer.....id like to make my own laser rig for my RC model gear
cutting 3mm balsa and hopefuly ply, can i make my own head using separate parts to build a better unit?
I like your pelta Mod....great idea........would a 5.5w unit work on balsa/ply ?
cheers Brett
NZ
Yes a 5.5W would cut balsa wood ok but for ply greater than 3mm you would be better with a 7.5W and in both case Air Assist is necessary. Also I recommend ply specifically made for laser cutting. Yes you could make your own laser, these days I do. I purchase the NUBM44 laser and BlackBuck 8M Laser Driver on eBay. Sorry I don't have any construction details documented to share, I just make it up as I go along.
All the best Graham
What laser?
The laser Diode is an NUBM44/47. I machined some parts and made the heat-sink block myself, It uses TEC (Peltier) cooling. I got my initial inspiration from Endurance Lasers, purchased on of their 8W units and went from there designing and building my own. So you could say it is in some way an Endurance.