Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



3D Printed Host! 1W 445nm Build

MrMcChicken

Active member
Joined
Mar 6, 2011
Messages
279
Points
28
Hello all together,
I've got here some diodes laying around and thought it is a shame to let dust settle on them. One of them is a 1W 445nm diode I once got from DTR.
This diode was used in this build. I have no fitting host here so I thought I'll just print myself one :D.
I printed it out ouf PLA with a Makerbot Replicator Dual knock off.
The battery cap is screwed to the host and keeps it together. This part made a few problems after I printed it out. The thread was not going at all. I sanded quite a lot of and it fitted. After adding a drop of oil it now turns quite smooth.
There is a hole for a bolt in the front, but I have not found any matching one so I just used a bit of copper wire. The contacs are made out of springs out of AA battery holders. To get the wires through the host I left some gaps inside. Unfortunately the end of the heatsink is a bit to wide so the host does not close completly, so you can see some wires.
The heat sinking is a quite important point if you want to build a laser. I had no heatsink aviable here so I got a 15,5*1,5mm aluminium tube which I used in this build. I added a second layer of aluminium tubing ad wrapped some 6*1mm copper pipe around it. The result is a pretty neat heatsink.
Using a torch I heated the end of it and I noticed a pretty uniform temperature increasement which indicated me that this should be okay.
There is a slight fail in this build. I used a lm317 as a constant current source.
I forgot about the high dropout voltage. This means this laser only outputs 1W with full batteries. I left it outside to screw later on a heatsink after I modified it.
I use are some LG 18650 2850mA batteries.

Here are some pictures:

The printed parts. I already added the switch in the back of the batterycap and sanded the thread:


A rough look inside:


The finished laser, just have to add the batteries:


Thats the complete build, it is pretty big but I don't really care.
Nothing rattles inside:


Finally a picture of it operating:


I hope you liked it, cheers! :beer:
 



Lifetime17

Well-known member
LPF Site Supporter
Joined
Dec 15, 2014
Messages
6,014
Points
113
HI,
Wow I'm impressed buddy you have adapted and modified a solution. Well done for a working laser from 3 D Graphing, this is a first time I've seen something like this awesome.
A little unorthodox but functional kudos to you. + rep

Rich:)
 

MrMcChicken

Active member
Joined
Mar 6, 2011
Messages
279
Points
28
HI,
Wow I'm impressed buddy you have adapted and modified a solution. Well done for a working laser from 3 D Graphing, this is a first time I've seen something like this awesome.
A little unorthodox but functional kudos to you. + rep

Rich:)
Thanks! :) I have a red diode and a green dpss laying around here too. Maybe I'll make for them 3D printed hosts too. I have some additional ideas how to improve the design.
 

Lifetime17

Well-known member
LPF Site Supporter
Joined
Dec 15, 2014
Messages
6,014
Points
113
Hi MM,
Yes practice makes perfection, can't wait to see what else you come up with..These are different for sure..

Rich:)
 

RedCowboy

Well-known member
Joined
Jul 10, 2015
Messages
9,125
Points
113
Cool, looks like the start of a lot of fun. :beer:
 




Top