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Here is a typical modern manual, and then I'll find you a schematic with notch filters in the feedback loop, may take a day to post it.

Usually these days an LM3886 is the output stage, I have no idea how the Scanlab photodiodes and led is set up, AGC is the LED circuit, you wont be able to implement the Coil Temp Calculator as the RC4200 is obsolete, The capacitor and resistor values may need to change, but here is a classic...

Hi, Thank you for your messages! I am looking into buying an existing driver and emailed Scanlab in the meantime. Part of the project is that I am trying to practice PCB design, so I would like to see if I can build the driver myself, but we will see :) Thanks Cas

Have you tried just asking ScanLab? They have discontinued their analog sensor based products and are very likely to just give a graduate student the data. I's good for business. The US office has been friendly to me on a work project. You're not some random hobbyist, you are a future...

You might want to try to find a matching scanlab driver... Designing and prototyping a driver from scratch for a one off project is a time trap.

The AI is partially correct. First, *you* need a laser light show variance from the CDRH before you can perform laser light shows for the public. Technically, you must have your variance before you purchase a certified laser projector, although some manufacturers will assist you in obtaining your...

我打算从广州一家供应商那里购买两台IP65防护等级、25W的RGB灯，价格为3308美元，用于安装在公共活动的移动户外舞台上。 人工智能建议我应该索要差异编号和CDRH认证编号。 我知道他们不会有差异编号，但尝试获取CDRH认证编号值得吗？ 这家供应商看起来靠谱吗？ 广州新光达光电科技有限公司。 供应商的邮件被转发到一家中国新闻网站。 低价清关是这类产品的通行证吗？

I used to make oxygen and argon cold plasma microtorches at the University. That's tempting as the jet size can be miniscule. Put in on a GRBL driven stage... Steve

Because in buys of 4 or more one of the better vendors is shipping 35 watts for that price. With good beam quality... Steve - - - Updated - - - Because in buys of 4 or more one of the better vendors is shipping 35 watts for that price. With good beam quality... Steve

you are looking at a mound of paperwork to make them legal... assuming they can be made legal. 2x25W projectors is a lot of power, especially if you have limited laser experience and safety training. i would not suggest going this route.

Hi Steve, there are plasma polishers that I've seen used for cast acrylic polishing that are pretty cool. It's occurred to me that rolling the contour at temperature might be a way to go - depending on the surface tension effects. The one time I tried to make a dimple tube the surface tension was...

The correct tool seems to be a hand torch. Self-polishing. Use outdoors and upwind to avoid the VERY toxic fumes. :mad: Or a diamond scriber if you have some robotics to drive it. Now that I have a stabilized fiber laser in the red (MPB) I want to try a grating setup to record on Litiholo...

That's fair - I tend to overthink things. I have access to a great maker space so "make enough for everyone at SELEM" is kind of my default. I have tried using a CO2 laser cutter in raster mode to "machine" acrylic. It sort of works, but the surface texture is grainy. Probably not an issue if...

Dear Roj, Now I'm picturing Gandalf but with lasers!!! (Which is no insult, quite the opposite!) Fun aside, I'm an 80's kid. I always had a weak spot for light shows, but never made a profession out of it. I remember when I got my first laser pointer as a young kid — good times — and our cat...

I was envisioning machining and polishing the acrylic one off. I may just have a lack of imagination but from where I sit the lumia "market" doesn't seem to warrant mass production techniques.

Hey Anjin, Excited to hear your feedback! What ever you prefer. I have 3D-Printed a small container which my THT Prototype lives inside the laser (cooling, to short wires and so on ;-) ) Remember, this is a hobby project of mine. I like to explore what is possible with close to no...

Hi Roj, First of all, thank you for taking the time to look at my project - much appreciated! If you may or may not read the whole readme or documentation (no hard feelings - it's a lot ;-) ): This is for anyone who has free time to waste. I'm just a hobbyist (who has no background in...

I'll bite.. ordering the bits and bobs and will see where it goes. Would agree that bolting it on to the outside seems more user friendly... but I have a pile of extra parts.. and in the privacy of my own home, safety first always, do love to mix and match the parts into whatever box happens to be...

Yes, I had plans to use a graphite mill to make custom lumia molds for glass, and aluminum molds for acrylic. Acrylic has a glass transition temperature, can be vacuum formed and hot pressed, and is cheap. I have a prototype I made on a normal vacuum former using 2 liter bottle plastic, which...