I did, they were mediocre at best. Now they have replacement sleds which make the same linear rails feel twice as good at least. In the last batch at least ... 2018-06-19 15:33:54 +0000 UTC View Post
Got a BLDC in a NEMA23 enclosure: https://www.ebay.com/itm/162789541036
I've replaced the standard magnet encoder (green ...
2018-06-16 20:13:03 +0000 UTC View Post
This broken beauty was sent by a viewer who bought 2, repaired one and didn't need the other any more.
<...
The switching CC driver started killing the output electrolytic capacitors for some reason. They get hot and end up in a fluffy explosion. Will have to investigate!
2018-06-13 23:19:03 +0000 UTC View Post
My last laser driver consisted of a high efficiency switching DC-DC converter 'to get close' and classic precise linear regulation to get the current precisely right. That works well and is safe, but ...
2018-06-09 18:24:25 +0000 UTC View Post
It seems like the whole world is waiting for the new PACE ADS200 station 2018-06-06 15:25:50 +0000 UTC View Post
https://www.digikey.com/product-detail/en/apex-microtechnology/MP108FD/59...
2018-06-06 08:48:14 +0000 UTC View Post
Would you look at that working distance ... madness!
Only thing it seems to lack is display + HDMI out at the same time. But maybe that could be patched with a little HDMI doubler?
2018-06-05 15:28:08 +0000 UTC View Post
There has been only one thing I managed to do in the heat wave of the past week: Taking dogs to the pond. But cool stuff keeps piling up:
1. Fiber laser EP02:
Anyone remember my ferrofluid clock plans? https://youtu.be/fdWlvf4-izc?t=238 based on this piece of art 2018-05-31 11:26:23 +0000 UTC View Post
Meaning the camera board and and the display assembly. No good for component-level inspection, unless you find a suitable lens. But maybe someone can come up with another creative application? Let us ...
2018-05-27 19:00:59 +0000 UTC View Post
A few YouTube commenters didn't like my previous 8 minute advertisement, but this one guy decided to actually do something about it: He sent me a very sick Advantest Spectrum Analyzer and is hoping fo...
2018-05-26 16:50:00 +0000 UTC View Post
I've tried various ways of extending the voltage range of the LT1970 which I wanted to build the OSMU around:
Pretty difficult, but worth the effort I think, very cool controller!
Clicking is the current limit of my PSU
2018-05-21 11:50:26 +0000 UTC View Post
AS WELL AS the surveillance python! (But not the eye piece adapter, can't find it :(
Comment with the most hearts in 7 days wins! Free international shipping, but I think this will not go past custo...
2018-05-18 17:41:54 +0000 UTC View Post
^ Low voltage differential probes for USB, HDMI or LVDS
^ TekVPI adapter for Tektronix Scopes
I am getting more negative feedback than usually and my first reaction was 'well, screw them'. But there are a few of 'them', so they might have a point ... what do you think?
What went wrong and ho...
2018-05-15 22:26:26 +0000 UTC View Post
The upper rotor seems seized, maybe because it uses air bearings and needs to be operated correctly? Or is it dead and eligible for a destructive teardown?
2018-05-15 11:14:02 +0000 UTC View Post
Gotta be careful, these might be addicting ...
2018-05-14 23:59:29 +0000 UTC View Post
https://www.elektormagazine.com/pages/get-to-know-elektor-magazine-marco-reps
Au...
2018-05-12 12:41:28 +0000 UTC View Post
Featuring a 0.9° stepper, a hollow shaft stepper and this thing: https://www.welectron.com/JMC-iHSV57-I...
2018-05-11 10:12:32 +0000 UTC View Post
Someone in the YouTube comments suggested that I should use an IR laser lens in front of a thermal camera. This one is perfectly transparent, which is a good start but I think I need a 3d printed h...
2018-05-10 20:06:19 +0000 UTC View Post
I used to redirect everyone who wanted to build my JBC controller to the Unisolder project, which is much more sophisticated. MUCH more sophisticated, holy moly
2018-05-08 20:15:21 +0000 UTC
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It's cool and all, but I really don't need a device telling me how quickly time passes 😱
The comment with the most hearts in 7 days wins!
2018-05-06 17:40:34 +0000 UTC View Post
Just trying to make them send me their Tesla coil next ...
We've grown a lot in the last month and I have a feeling that the OSMU announcement has something to do with that ...
Well, as you can see in earlier posts, I have been working on that idea f...
2018-05-01 18:25:36 +0000 UTC View PostMany new 5$ (and more) supporters have joined last month, thank you very much guys 🤑 I've been feeling bad for not making a lot of special 5$ content and now I am feeling worse about it, so time to...
2018-05-01 17:59:44 +0000 UTC View Post
I've been using the HP differential probe more frequently lately for stepper motor phase current measurements and power supply noise. Since isolation and current shunts are important points in the OSM...
2018-04-28 17:55:23 +0000 UTC View Post