I ran the nubm31t all 4 channels parallel at 9.412A for about a minute
I was thinking of putting a ~ 4A fuse on each channel. Once one blows, the rest will blow immediately.
During testing of the nubm31t, I killed a laser driver which caused...
Here are the pictures of the axis. I just bought some random XY / X stages from ebay and mounted them. If you also pair it with a Noga indicator arm, you get an insane amount of freedom. You can solder anything to your hearts content with two of these.
I also included the water cooling block I...
Thank you for sharing this.
I was extremely worried about the dust from cutting would get into the array. However, you shared above that there is a window to protect the array/mirrors. I am more confident in pursuing this now. I had initially thought you used some kind of chemical to soften the...
Thanks, I am learning everyday
I apologize for my constant flood of questions. I know I ask difficult questions. I poke around articles all the time and what I cant find out on my own, I ask here.
These videos show the transmissive type color wheels.
If they do show the reflective type in a...
Short explanation: I want to make a laser engraver
Long explanation: I want to produce a "spotlight" I will use the white light produced from the phosphor wheel and collimate it with an aspheric lens.
Thank you for the posts. I had a great time reading about them.
I am in contact with a...
Thanks for your help.
I am very new to projectors and am not familiar with the terminologies used for them at the moment. I did some searching with keywords such as array, projector, phosphor wheel. But I cant seem to find what I am looking for.
Most of what I find are knife edge arrays from...
I am researching laser projector with phosphor wheels. They usually come with diode arrays. I know some members here have taken some apart to learn about them, or to harvest the diodes.
I need some advice on what type of optics they use to focus the array onto the phosphor wheel.
Do you use a normal spherical plano convex lens?
I will soon be able to cut off the multi lens and experiment with the height once a few components arrive in the mail. Sad that express shipping takes so long these days. But at least it is still working.
Any type of glue anyone can...
Sorry, maybe I misunderstood the actual meaning of DSO. I thought it just meant a typical digital oscilloscope. One that measures only waveforms. Mine doesn't have the ability to measure current.
My power supply does display output current and voltage, so I do have this information.
On average, how much do you get charged for a machined part. For example, a 50x50x10mm block with holes and taps in it.
I'm also going to get some stuff machined and the quotes I get are decent, but maybe I could get a reference from you.
It is mainly extremely cost prohibitive and in addition, mentally stressful of danger when you first start. Not very well documented and not sold as a consumer plug and play item. I am sure many people have found and will find your posts to be interesting and educational to read, and useful in...
Thanks for the beam shots.
Some weird stuff going on. It is as if the multi lens is not correctly focusing or possibly the diodes do not all have the same Z height?
On the 3rd picture, you can see some kind of "split beam" all the way at the top. I wonder why it does that.
You may find this to...
I have the newest osram plpm4 450 65W with the 6s4p configuration.
It is difficult to tell exactly where each beam is so my drawing was just a best guess. Sorry, I didn't spend adequate time doing this. The osram was especially difficult to map the beams. Some were well off the range and barely...
I am not sure. This is what I can calculate for you:
Nichia nubm31t 95W @ 1.8 x 1.2mm = 44W/mm2 power density
Nichia nubm44v2 7W @ 0.2 x 0.2mm = 175W/mm2 power density
The nubm44v2 has much more power density. But 9% of the output of the nubm31t. Need to consider what you plan to cut. If you...
I messaged the seller and they responded that it is a 4x set.
superglue you are right, if we actually had numerical data, we could easily calculate.
Upon looking at pictures, it seems only the concave lens gets steeper as the magnification ratio increases. The convex lens barely changes.
I just received this in the mail. Can anyone else confirm what expansion ratio it is?
I dislike this because I need to space the two lens so far apart (30mm) in order to achieve a great beam profile.
If I purchase higher ratios like 3x or 6x I could space them less apart, like 10mm or less away...