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marcoreps

marcoreps

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marcoreps posts

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!

...

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Nanovoltmeter Showdown Preview

https://www.youtube.com/watch?v=qtWgAzM0muw

Finally managed to get the final exhibit working

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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 😈 2024-11-06 18:43:01 +0000 UTC View Post

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

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UPDATED Fluke 8508A repair Ep01

One of the most reluctant patients I have ever treated!

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June plans

to be overthrown in days πŸ˜Άβ€πŸŒ«οΈ

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Low cost nanovolt switch / scanner

... made from rotary switches? It looks promising, but it's not yet reliable enough

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Synthesizer Sanctuary

Did anybody miss my old synthesizer adventures?

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LinuxCNC + EtherCAT but for real this time

Building a new control cabinet for my CNC machine

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First Scanning Electron Microscope Image!

not particularly pretty yet

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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 πŸŽ…

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Adopting scanning electron microscope EP01

Only some cringe logistics and superficial overviews, more soonβ„’

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Testing the limits of a fiber laser engraver

Sheet metal cutting, Inter-metallic-welding, wire welding, cleaning, ...

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2 years later: Coherent Verdi V10 Repair

anybody member this?

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Datron Wavetek 4950 Episode II

... the season finale

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Installation and first chips with new CNC spindle

and a little whoopsie ....

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Fluke 731B restoration and "improvement" 🀞

Not super different to Fluke 732A but reps is more reckless today

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May Mailbag

And a random fiber laser output isolator teardown

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CNC spindle unboxing & small factory tour

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Wavetek transfer standard repair attempt

Strange "DMM" made from the bestest Datron / Wavetek parts

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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...

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NiMh, Cu, Steel & Invar stuff

Update 9 Mar: ADRmu 1.2 with LCSC part numbers for JLC assembly service, if anybody needs it:

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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 meas...

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Secret Santas & more

A few more details in no particular order:

A cubic meter of documentation:


Why ...

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Most cringe 3D printer ever

Just some Chinese stuff, don't be alarmed ... ADRmu vid is also halfway done 

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8000$ Battery Backup Power System πŸ™„

making some room on the TODO mountain for something new

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Leadshine Servos & LinuxCNC EtherCAT

Wire EDM Ep1 perhaps?

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Overnight healing of a Fluke 5700A Calibrator

video is coming back sometimes while the protagonist isn't looking πŸ•΅οΈβ€β™€οΈ

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Big Keithley 2400 restoration

(this was the easiest out of my 3 Keithley patients currently in the waiting room)

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The End is near!

... the end of boring repetitive solar battery videos I mean! because my solar power plant is nearly ready 🌞 

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