Blord
0
- Joined
- Dec 24, 2007
- Messages
- 5,356
- Points
- 0
In this review I want to show some in-and-out of the Ehgemus host with a 638nm single mode diode. I bought the host from Ehgemus a few weeks ago. :drool:
The host is very sleek and lightweight. It is completely made of aluminium. It has room for one 14650 3.7V Li-ion battery. The diode pocket is integrated in the host omitting the module and the heatsink. I had an idea of putting a single mode diode into it. This beautiful host deserves a diode with nothing but the best beam/dot spec.
After buying the 110mW Mitsubishi Single Mode Diode (ML520G54) I could start building the laser. With the information from RHD about the maximum current I decided to use a single AMC7135 ic as a driver. This little bugger delivers 350mA constant current with one 3.7V cell.
Enough talking. Here is the pictutorial :beer:
The Ehgemus 14650
The famous buttersmooth switch
Excellent finishing. You can't see which part is the rotating head. :undecided:
The Build
AMC7135 ic on a proto board. I cut a square of 3x3 points as driver base.
This thing is TINY !
Make connections between the points and solder the wires.
red wire : battery+
black wire : battery-
blue : diode+
white : diode -
All three pins of the diode are used for the driver. Ehgemus has already a wire for battery+ so I use this yellow wire.
I glue a moon shape aluminium sink under the driver. Then the whole assembly is glued into the brass tube.
It takes some fiddling to fits all the wires but I managed.
Add the lens, the 14650 battery and the laser is ready.
The beauty and the beast ! :crackup:
BEAMSHOTS
Good round dot. It has on both sides wings like the LPC-815/826 diodes.
The distance was 10 meter/30 feet
High-power short focal lens
650nm AR coated Acrylic lens. This lens gives the best looking dot.
The 3-element glass lens looks very nasty with this diode.
Color comparison 638nm vs 660nm red laser.
I made a nice case for the laser. A perfect gift ! :bday:
I hope you enjoy the tour and ceeya ! :wave:
The host is very sleek and lightweight. It is completely made of aluminium. It has room for one 14650 3.7V Li-ion battery. The diode pocket is integrated in the host omitting the module and the heatsink. I had an idea of putting a single mode diode into it. This beautiful host deserves a diode with nothing but the best beam/dot spec.
After buying the 110mW Mitsubishi Single Mode Diode (ML520G54) I could start building the laser. With the information from RHD about the maximum current I decided to use a single AMC7135 ic as a driver. This little bugger delivers 350mA constant current with one 3.7V cell.
Enough talking. Here is the pictutorial :beer:
The Ehgemus 14650
The famous buttersmooth switch
Excellent finishing. You can't see which part is the rotating head. :undecided:
The Build
AMC7135 ic on a proto board. I cut a square of 3x3 points as driver base.
This thing is TINY !
Make connections between the points and solder the wires.
red wire : battery+
black wire : battery-
blue : diode+
white : diode -
All three pins of the diode are used for the driver. Ehgemus has already a wire for battery+ so I use this yellow wire.
I glue a moon shape aluminium sink under the driver. Then the whole assembly is glued into the brass tube.
It takes some fiddling to fits all the wires but I managed.
Add the lens, the 14650 battery and the laser is ready.
The beauty and the beast ! :crackup:
BEAMSHOTS
Good round dot. It has on both sides wings like the LPC-815/826 diodes.
The distance was 10 meter/30 feet
High-power short focal lens
650nm AR coated Acrylic lens. This lens gives the best looking dot.
The 3-element glass lens looks very nasty with this diode.
Color comparison 638nm vs 660nm red laser.
I made a nice case for the laser. A perfect gift ! :bday:
Last edited:
