marcoreps posts
Posts: 464
Files: 717
Picking up my small & perfectly sane Xmas presents
Let me say this very publicly so that I am forced to abide by it: I will not buy any more XXL equipment while living in a first floor apartment.*Happy holidays, friends!*ᵉˣᶜᵉᵖᵗᶦᵒⁿˢ ᵃᵖᵖˡʸ
Nanovoltmeter Showdown Preview
https://www.youtube.com/watch?v=qtWgAzM0muwFinally managed to get the final exhibit working
Repair and Tests: Datron 1281 8.5 Digit DMM
If this adds ratio transformer experiments to anybodies overly full TODO lists, I am "sorry"...(Schematic on pdf page 28 😈 https://xdevs.com/doc/Datron/1281/doc/Datron_1281_Service_Manual_1989-01_drawings.pdf)
CNC Rigid tapping with EtherCAT and LinuxCNC
There still seem to be a few bugs, the ending will be smoothed over once everything is working correctly
UPDATED Fluke 8508A repair Ep01
One of the most reluctant patients I have ever treated!
June plans
to be overthrown in days 😶🌫️
Low cost nanovolt switch / scanner
... made from rotary switches? It looks promising, but it's not yet reliable enough
Synthesizer Sanctuary
Did anybody miss my old synthesizer adventures?
LinuxCNC + EtherCAT but for real this time
Building a new control cabinet for my CNC machine
First Scanning Electron Microscope Image!
not particularly pretty yet
Opening Christmas Presents from you guys
Kepco Bipolar Operational Power Supplies, a universal programmer, some RF parts, a revolutionary electronic prototyping system and more...Thanks again 🎅
Adopting scanning electron microscope EP01
Only some cringe logistics and superficial overviews, more soon™
Testing the limits of a fiber laser engraver
Sheet metal cutting, Inter-metallic-welding, wire welding, cleaning, ...
2 years later: Coherent Verdi V10 Repair
anybody member this?
Datron Wavetek 4950 Episode II
... the season finale
Installation and first chips with new CNC spindle
and a little whoopsie ....
Fluke 731B restoration and "improvement" 🤞
Not super different to Fluke 732A but reps is more reckless today
May Mailbag
And a random fiber laser output isolator teardown
Wavetek transfer standard repair attempt
Strange "DMM" made from the bestest Datron / Wavetek parts
Solar power roof: Done
'Free' electricity for my lab for at least 3/4 of a year in northern Germany. Liquidation of my grand collection of portable power stations got me another 2 SOK batteries, but it's still not enough to comfortably get through winter.
NiMh, Cu, Steel & Invar stuff
Update 9 Mar: ADRmu 1.2 with LCSC part numbers for JLC assembly service, if anybody needs it:https://drive.google.com/file/d/13HhwEAEPzgzkxrb5JuMN7btz3VUfhB-d/view?usp=sharingTested successfully with both ADR1000 and LTZ1000. Still needs a few exotic parts which require reflow soldering, but seems to work great otherwise.
A new Vref claims to be better than LTZ1000!
Reps is on the case ...It took an eternity but there are still three things missing for the public release: Statistics for the newest boxes, some small parts from China and better noise measurements. So this draft still has a bit of an open end.
Secret Santas & more
A few more details in no particular order:A cubic meter of documentation:Why I thought I needed some new workbenches:The predecessors of "modern" HP feet were much nicer!I've liquidated most portable power stations and re-invested:
Most cringe 3D printer ever
Just some Chinese stuff, don't be alarmed ... ADRmu vid is also halfway done
8000$ Battery Backup Power System 🙄
making some room on the TODO mountain for something new
Leadshine Servos & LinuxCNC EtherCAT
Wire EDM Ep1 perhaps?
Overnight healing of a Fluke 5700A Calibrator
video is coming back sometimes while the protagonist isn't looking 🕵️♀️
Big Keithley 2400 restoration
(this was the easiest out of my 3 Keithley patients currently in the waiting room)
The End is near!
... the end of boring repetitive solar battery videos I mean! because my solar power plant is nearly ready 🌞
