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Getting angry doesn't solve problems. I'm off as this is and should be between you and Sanwu - not a public circus. Get directly in contact with them and resolve it properly, without anger. As far as I'm concerned - your reputation with me is toast not because of what happened with you and...

Stop acting macho - it's impressing nobody. I sincerely hope you calm down and take your phone number off the internet - you really shouldn't post it in such a public way.

The customs slips are written the way they are in order to not incur import taxes and excessive charges (which I'll add the customer, i.e. you, would pick up the bill for - so you should be thanking not criticizing for this). This is an extremely common practice for any company doing exports...

Well, I'm sorry to hear that you was burned by him Podo - 🤞the paypal resolution goes in your favour with the evidence you provided!

Not quite - 1 photon with a wavelength of 405nm carries more energy than a photon with a wavelength at 650nm, that is correct; Unfortunately 1 ton of feathers weighs the same as 1 ton of lead - and in this case, 1W of 405nm laser light is exactly delivering the same amount of energy (1 joule)...

If you're lucky, it won't necessarily damage the diode - but you may leave the diode window covered in streaks and residues or dirtier than it was before, or totally fail at cleaning it if what's there is already burnt on. Best to prevent the diode window getting dirty in the first place.

cleaning the diode window is really not possible with the method you've described. The issue is that any dust or contaminants on the window end up burned on by the power of the laser - so it becomes very challenging if not impossible to do in the first place. This is why some members have...

One other thing paul - this threads been dead for nearly 10 years! Always take a look at the date on the last post - Also on the OP of the thread's profile - they've not been active since 2010!

I suppose it's a balance of finding a photoresist that's insensitive enough that only a targeted focused beam will expose it fully. Interesting - thanks for the article link Diachi

I don't risk getting shot by a police officer on their beat here, as your standard police officers in the UK do not carry guns, but I would not want to take the risk of inciting public fear (and subsequently getting an armed unit called). I'm still going to put a pistol-grip style one together...

405nm is very close to UV though - Most PCB photoresists will be very well exposed by 405nm. I do wonder though if it's going to be enough to simply target the laser in that case without masking off the rest of the board - any splash, beam artifacts or reflections and the rest of the photoresist...

I'm conscious of avoiding anything too visibly similar to a handgun being in the UK - but a pistol-grip with a flashlight on top is probably fine, especially if the host is quickly removable. Will take a stab at it later in the week. I like the idea of using the Convoy host - additionally, that...

Hopefully will be minimising downtime - And my printing costs are minimal, most would be shipping - so it's probably more cost effective to get anything made locally. I'll see if I can mock something up this week.

I'm jobhunting at the moment but if I've got some time I'll try and mock something like this up in 3D, and then print it. Won't be aluminium, but a decent space for a heatsink in the top it should do fine. Perhaps two versions, one with just space for a 20mm module, and the second with more...

Sorry Paul - this is what happens when I post at midnight :)

Reading Paul's reply - The diode case in my laser is not isolated from the laser host - According to the datasheet, the pin should be isolated from the diode case. Answer's what you thought it was to start with though - doesn't matter either way. If it's host-negative, that's no problem.

The case pin on this diode is not connected to either the anode or cathode of the LD, so you should be fine without isolation. I stuck my multimeter in Continuity mode on my p73 containing laser and it's not isolated.

I've a module with driver already picked out and sitting on the desk in front of me. A 505nm /w an Astral Picodrive that I bought from Jnrpop about 2 months ago. Will be insulating it with kapton tape & running +ve to tailcap then... PM me Rich and we can figure out how much shipping will be to...

Is that one suitable for a case-positive module Rich? If so I'm in, pm me.

Your duty cycle due to overheating will almost certainly be far shorter than the battery life with an M140 diode - you can do a rough ball-park calculation to figure out the battery life by calculating the capacity of a battery in watt-hours and then finding the power consumption of the laser...