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hello, This Laser driver has an analog Input. Without Voltage on the Input, the Laser is off. This is different to the TTl Input. Best regards Edgar

Hello, the laser driver has a 12 V power supply. I need a low power, variable voltage from 0,7 to 5 V to regulate the power output of the analog driver. So maybe a 5V IC regulator and a potentiometer will do the job. Or a 5 V Zener diode with an potentiometer or something similar...

Hello Paul, today I got my DTR copper module, now I understand what you mean with shelf. I think, I have to improve the heat transfer from the diode to the heat sink. At the moment , I have an other problem. Today I also got my 5A laser driver...

Hello, thank you, that helps a lot. I think, a good pressfit is important for the heat transfer. But too much press will damage the Diode. best regards Edgar

Hello, I finished my first copper heatsink for a 5,6 mm laser Diode. I drilled a 5,5 mm hole, followed by a light cut in my lathe. With the digital caliper, i measured a Diameter of aprox. 5,60 mm. I had luck, that i got a pressfit of my Diode in this heatsink. My question is, how much is the...

Hello, very nice laser! I would be interested, how you made the connection to the batterie? As a beginner in laserpointer i have problems to get good quality switches and conection boards. best regards Edgar

Hello, attached you can see two photos of my semifinished laser. I put it together yesterday evening for a first test run. best regards Edgar

Hello, i ordered the 7 W diode in a 20 mm Copper host. I made a heat sink from massive Aluminum 40*40 mm and milled in some cooling fins. I also added a 12 V fan. That should work. Today I semifinshed my laserpointer. Unfortunately I killed the diode with the wrong polarity of my wiring. But I...

Hello, no, i did not attend this show. Working with Diode lasers is a new Hobby of mine and some things, I learned the hard way. (destroyed red laser diodes) At the moment, I have two projects. 1. a 7W blue laser, I still wait for my Diode from DTR 2. a blue laser pointer with a 2 W 450 nm...

Hello, thank you very much for your help. I searched this site since weeks, before I decided to become a member to get full Access to the Information. best regards Edgar

Hello, I am quite new with the laser and laserpointer Hobby. Until now, I have only a few low cost laserpointers from China,a nice 860 mw green Laser 8520 nm) and a 488 nm Laser with 3,5 W Output. At the Moment, i plan to build a 7W blue laser (450 nm) for engraving and a 2 W 450 nm...