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Question: 1) The picture shows 2 chips being heat sinked to the main bottom copper sink. Do both ICs get hot? I thought the only IC which needed to be heat sinked was the black chip (with the many legs coming out the sides)? 2) In the picture, the smaller chip on the left is the one that...

Thank you for the info on the battery monitor. Just to clarify, does this build have a monitor in it? I wasn't sure if it was a new build without a monitor or you modified an older jayrob build which already had his monitor. In general, if you were to put one in your build, I assume it would...

Hello, Very nice build! 1) Can you show how you built the monitor and LED? 2) Can you re-link the monitor link? It doesn't work. 3) Connectors are good for changing diodes but are there any disadvantages to using connectors rather than direct solder connections? Thank you.

I've been looking at various safety disconnect features we sometimes see at the tailcap of a host - usually in the form of key locks or power connectors like the 5.5mm/2.1mm male to female connectors often used on power supplies for various small appliances. When the male connector is pulled...

You have quite a collection of modules. Thank you for the photos!

FYI, AUG_DTR said all modules are 1.0 to 1.5mm longer (total length of both halves screwed together) with diode installed. This would imply the 35mm diameter module is 29mm long total length WITHOUT the diode installed because it is 30.5mm long WITH the diode installed. This, in turn, would...

Thank you to everyone here for your input. Always appreciated!

ok, thank you for the advice.

So without the sleeve, closing the jaws of the vice slowly may still cause the plunger or diode to get cocked sideways.

ok, thank you for that explanation. This is good news for me. I assume the 250millisecond soft start feature of the ACS4500BU driver is nice but not necessary to increase laser diode lifespan. So, regardless of whether we are using a 50mW laser or a 7W laser: 1) Turning a laser on and off...

How about taking another driver which does feature a proper soft start (ACS4500BU soft start = 250 millliseconds) and insert it between the BB 8M and the diode? I assume if this can be done, it will probably double the inefficiency and double the heat produced. Both will have to set to the...

Is there a pre-made add-on soft start module which can be added to our lasers?

Is there such an animal out there? I want to use the BlackBuck 8M (for its potentiometer and diode heat sensor features) but it does not have a significant soft-start feature (0.5millisecond start delay). Some threads here on LPF suggest an adequate soft start of between 250 - 500...

Thanks to everybody for all the helpful info. The pictures are great and self-explanatory. Its a good thing DTR supplies a service to purchase modules with diodes already pressed-in. Will the Survival Laser diode presses work for larger modules (larger than 12mm)?

yes, its a tight fit for what I'm trying to do. It may not be doable. AUG_DTR said the 35mm module was 30.5mm long with the diode installed. I assume he was talking about the module with the solid copper back half which is 26mm long without the diode installed and 30.5 with the diode...

ok, thanks!. AUG_DTR wrote back and said the 35mm module is 30.5mm long with diode installed. Is it safe to assume the 20mm and 25mm module with diode installed is also 30.5mm long? Just making sure.

I just noticed the Barnett site now says startup delay is 30 ms. I don't know if I originally misread it as 300ms or if Barnett changed it in the past few days. If the 30 ms number is correct for the 8M driver, this would mean the BlackBuck ASC4500BU and ASC5500BU drivers have a better soft...

I just got a reply for DTR_ AUG and was told the soft start on the Blackbuck 8M is 0.5ms. Super short, if not instantaneous. It should not be described as a soft start IMHO. The Barnett site says 300ms. Is there a spec sheet somewhere to check this? Who built the driver?

thank you for the info. I will take a look...

How long is the 35mm module with back half attached? DTR site does not give this info.