So my buddy Jim wanted me to post up these pictures of one of my recent projects. Using some of his extended heatsinks for the Convoy M21A/C8, I have milled out some improvements.
First, I’ve got these custom assembled, dual and single high speed 30mm fans that snap onto the heatsinks. With some modifications, and running 2-18350 Li-Ions in series, I can directly power the fans with 8.4V, also using the Lazeerer SXD (which outperforms the Astral Super X by far), these pointers are able to sustain over 7.2W optical output until the batteries die = essentially unlimited duty cycles..
![IMG_3782.jpeg IMG_3782.jpeg](https://laserpointerforums.com/data/attachments/61/61490-532822a8fe0b1d4d263855a6a951f498.jpg?hash=UygiqP4LHU)
![IMG_3781.jpeg IMG_3781.jpeg](https://laserpointerforums.com/data/attachments/61/61489-358566eb9f6c5fe15e0eb88ad229aa8e.jpg?hash=NYVm659sX-)
This also led me to milling out a heatsink to allow for direct mount of a 30mm high speed fan, ideally I would mill 2 opposed sides of the heatsink to allow for 2 fans for optimal cooling. As pictured below:
![IMG_3936.jpeg IMG_3936.jpeg](https://laserpointerforums.com/data/attachments/61/61492-086f841cd0eba6a0746c69ac5ea690c0.jpg?hash=CG-EHNDrpq)
This then led me to take it another step further, with a design I’ve been testing for a while; milling out slots within the heatsinks to allow for 2-3, 20mm X 40mm TEC plates, which obviously require another 1-2 drivers to power them properly. I’ve tested over 15 different sizes and style of TEC plates/drivers and I found a great combo that allows for limitless duty cycles, or as long as your batteries can handle. Here are some more pictures showing the beginning of a TEC plate slot milling, however my drill press setup isn’t tight enough to mill out the slots nice and tight for proper TEC plate installation and operation. This is something we are working on, and will implement this design scheme into pointers using Nichia NUBB23 and NUBB24 diode arrays, for some serious handheld powa!
![image1.jpeg image1.jpeg](https://laserpointerforums.com/data/attachments/61/61493-0126d4790116944b4e220654c08cdb21.jpg?hash=ASbUeQEWlE)
Check future posts for more pictures of this…
Check it out and let me know what you all think.
First, I’ve got these custom assembled, dual and single high speed 30mm fans that snap onto the heatsinks. With some modifications, and running 2-18350 Li-Ions in series, I can directly power the fans with 8.4V, also using the Lazeerer SXD (which outperforms the Astral Super X by far), these pointers are able to sustain over 7.2W optical output until the batteries die = essentially unlimited duty cycles..
![IMG_3782.jpeg IMG_3782.jpeg](https://laserpointerforums.com/data/attachments/61/61490-532822a8fe0b1d4d263855a6a951f498.jpg?hash=UygiqP4LHU)
![IMG_3781.jpeg IMG_3781.jpeg](https://laserpointerforums.com/data/attachments/61/61489-358566eb9f6c5fe15e0eb88ad229aa8e.jpg?hash=NYVm659sX-)
This also led me to milling out a heatsink to allow for direct mount of a 30mm high speed fan, ideally I would mill 2 opposed sides of the heatsink to allow for 2 fans for optimal cooling. As pictured below:
![IMG_3936.jpeg IMG_3936.jpeg](https://laserpointerforums.com/data/attachments/61/61492-086f841cd0eba6a0746c69ac5ea690c0.jpg?hash=CG-EHNDrpq)
This then led me to take it another step further, with a design I’ve been testing for a while; milling out slots within the heatsinks to allow for 2-3, 20mm X 40mm TEC plates, which obviously require another 1-2 drivers to power them properly. I’ve tested over 15 different sizes and style of TEC plates/drivers and I found a great combo that allows for limitless duty cycles, or as long as your batteries can handle. Here are some more pictures showing the beginning of a TEC plate slot milling, however my drill press setup isn’t tight enough to mill out the slots nice and tight for proper TEC plate installation and operation. This is something we are working on, and will implement this design scheme into pointers using Nichia NUBB23 and NUBB24 diode arrays, for some serious handheld powa!
![image1.jpeg image1.jpeg](https://laserpointerforums.com/data/attachments/61/61493-0126d4790116944b4e220654c08cdb21.jpg?hash=ASbUeQEWlE)
Check future posts for more pictures of this…
Check it out and let me know what you all think.