AUS
0
- Joined
- Apr 12, 2012
- Messages
- 565
- Points
- 28
I was asked to build a laser by someone the other day and thought I would see what i could do with as many off the shelf bits as possible.
Host = Big-W Energizer LED 3 x AAA co-axial $9
Diode = LPC-826 $10.50
Module = Copper Aixis module from group buy ($4)
Heatsink = 10mm to 15mm brass plumbing adapter reamed out to accept an Aixis module ($2) from Bunnings Warehouse.
Driver = Mohgasm linear 2.7ohm / 460mA $6
Lens = Aixis acrylc (already had this).
Total = $32.50
(Prices approximate and a mixture of $AUD and $USD!)
I picked up a bog standard "Energizer" 3 x coaxial AAA type host from Big W for $9 the other day to see if it would make a good host (came with batteries included). It was one of the miulti LED things so common these days.
Host after removing LED module:
The Moh driver was assembled and soldered to the diode. The plumbing adaptor was reamed out to press fit the copper module, which was then pressed in using a vice.
I soldered the positive wire from the driver to the battery contact CAREFULLY as it was mounted in plastic. It soldered well, i suspect its tin or zinc plated brass. The diode is case negative so no need to solder the negative wire.
Module ready for assembly:
Here is the whole thing in parts:
NOTE: The 3x AAA batteries measured 4.5V exactly but i suspect they may have been slightly drained in the shop as the protective "remove before use" tab was missing when i bought it.
Raw Diode Output with stock batteries 115mW:
With acrylic lens & stock batteries, 90mW:
I would do better with a more expensive lens but the objective here was cheap.
I will change the batteries for new ones and LPM it later...
Host = Big-W Energizer LED 3 x AAA co-axial $9
Diode = LPC-826 $10.50
Module = Copper Aixis module from group buy ($4)
Heatsink = 10mm to 15mm brass plumbing adapter reamed out to accept an Aixis module ($2) from Bunnings Warehouse.
Driver = Mohgasm linear 2.7ohm / 460mA $6
Lens = Aixis acrylc (already had this).
Total = $32.50
(Prices approximate and a mixture of $AUD and $USD!)
I picked up a bog standard "Energizer" 3 x coaxial AAA type host from Big W for $9 the other day to see if it would make a good host (came with batteries included). It was one of the miulti LED things so common these days.
Host after removing LED module:
The Moh driver was assembled and soldered to the diode. The plumbing adaptor was reamed out to press fit the copper module, which was then pressed in using a vice.
I soldered the positive wire from the driver to the battery contact CAREFULLY as it was mounted in plastic. It soldered well, i suspect its tin or zinc plated brass. The diode is case negative so no need to solder the negative wire.
Module ready for assembly:
Here is the whole thing in parts:
NOTE: The 3x AAA batteries measured 4.5V exactly but i suspect they may have been slightly drained in the shop as the protective "remove before use" tab was missing when i bought it.
Raw Diode Output with stock batteries 115mW:
With acrylic lens & stock batteries, 90mW:
I would do better with a more expensive lens but the objective here was cheap.
I will change the batteries for new ones and LPM it later...
Last edited:
