Schallbert's Tech Shack

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FAQs about Schallbert's Tech Shack:

How many episodes does Schallbert's Tech Shack have?

The podcast currently has 20 episodes available.

Schallbert's Tech Shack episodes:

March 17, 2025 announcement_scitech
With this video I say goodbye to Tom and this scitech.video instance he hosted for six years now 🤝.
Find me on https://makertube.net/c/cnc_corner/videos where I'll upload my content to in the future.
All the best
Schallbert
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February 22, 2025 CNC: Saturn ASCII art
Time-lapse of engraving Aluminium sandwich material with my an ASCII-Art-Saturn.
3.18mm graver with 0.1mm tip. Cannot recommend this tool for the material.
Still, image quality turned out well.
Blog post coming soon!
Image source: https://asciiart.website/index.php?art=nature/astronomy
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February 18, 2025 bloglogo-dotmatrix
My first try for a CNC stipple image on Dibond (Aluminium sandwich material).
Blog entry coming soon!
Schallbert
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February 03, 2025 Halftone images on CNC
Here's how a halftone image transfers from file to material.
Workpiece: MDF black, metalized paper surface.
Stats: 3500mm/min, 20kRPM, 24.5k dots on 140x70mm
Related blog post:
https://blog.schallbert.de/halftone-cnc/
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January 05, 2025 multicolorEngrave
I'm 3D-engraving a sign in this video. It is a complex geometry so it takes nearly 15min even on my overclocked machine.
Read my blog for more information: https://blog.schallbert.de/engrave-multicolor/
Music by Hannes Und Die Luken
Have fun watching!
Schallbert
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December 02, 2024Numerical controller electronics assembly
Watch me assemble a portal milling machine's control hardware.
I made some comments in the subtitles, so make sure you have them activated via settings->cc(Subtitles).
This is the second control box that I assemble. It took less than half the time versus building its bigger brother "Midi control".
Background info on my blog: https://blog.schallbert.de/cnc-electronics/
Pros:
Quick assembly
No soldering
Many snap-in parts
Small enclosure
Cons:
Connects to the machine per screw terminals; separation from machine is not designated
Loud fan, active also in idle (but can be solved with "Schallbert's Fanhack")
Multiple external power supplies (Stepper supply, 24V supply, Spindle switchbox)
Have fun watching
Schallbert
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October 19, 2024CNC surface check in Z
In this video, I mounted a dial gauge to the Z axis of my CNC to see whether the cuttin>
Related blog post: https://blog.schallbert.de/why-vacuum-table/
Please watch with subtitles!
Bitte mit aktivierten Untertiteln ansehen!
(Settings -> CC -> Sprache/Language)
I spent the whole day adjusting the vacuum table by putting thin sheets of metal where >
Cheers
Schallbert
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October 19, 2024 Making of Klingenbutler
In this video I run my CNC through Bamboo, creating another prototype for Klingenbutler.
Context: https://blog.schallbert.de/klingenbutler/
This is V1.1 - biggest manufacturing issue are charred drill holes when using the 4mm 2flute-cutter in milling mode. I should have used a drill cycle or smaller bits.
The video does not show the drill cycle for smaller holes. I cut them with a 2-flute 2mm wood bit. It is always tricky to mill two-sided but the quality of cut is so much better so I pretty often take the extra effort.
Have fun watching.
Schallbert
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June 17, 2024 Milling steel!
Milling steel on a "squishy" hobby CNC
Works OK with a matching parameter set, yet easy to see that the machine isn't built to do this a lot.
Related article: https://blog.schallbert.de/milling-steel
Have fun watching!
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May 01, 2024 tunedengraving-compare
This is the video accompanying my article series about portal milling machine CNC tuning:
https://blog.schallbert.de/cnc-tuning-gcode/
Cutting data:
Common to all videos is the Feedrate of 5000mm/min = 83mm/s = 197in/min, spindle speed 15000-18000rpm
Top left: --- 00:00 --- Stock machine, software, CAM config
Top right: --- 01:00 --- Milling-Mode optimization (Path-smoothing low, acceleration raised to aXY=1000mm/s², aZ=400mm/s², rapid feed vXY=12m/min, vZ=4.8m/min
Bottom left: --- 01:47 --- Look-Ahead Feed constraints lifted, high path smoothing, Milling-Mode kinetmatics
Bottom right: --- 03:35 --- Engrave-Mode optimization (Rapid angle move 12°, angle cornering 0.3mm, path merge 0.3mm, aX=4000mm/s², aY=3200mm/s², aZ=1600mm/s²)
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FAQs about Schallbert's Tech Shack:

How many episodes does Schallbert's Tech Shack have?

The podcast currently has 20 episodes available.