The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘3D printing’ Category

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I Built a Commodore 64 Laptop That Never Existed (PI + EMULATION) – The Portable 64 Concept Design – YouTube

Posted by jpluimers on 2026/05/06

Cool to see what 3D printing plus a Raspberry Pi emulating a C64 can do [Wayback/Archive] I Built a Commodore 64 Laptop That Never Existed (PI + EMULATION) – The Portable 64 Concept Design – YouTube.

The Portable 64 with an original Commodore 64 joystick

The Portable 64 with an original Commodore 64 joystick

However, published in December 2025 after Commodore had been resurrected from the C= brands, it would have been way cooler if was based on new Commodore 64 Ultimate hardware.

Maybe someone will do such a portable computer based on that hardware, or even better that it becomes available at [Wayback/Archive] Home | Commodore.

--jeroen

Posted in 3D printing, 6502, C64, Commodore, Development, Hardware Development, History, Power User, Retrocomputing | Leave a Comment »

13 Things No One Tells You About 3D Printing as a Beginner – YouTube

Posted by jpluimers on 2026/04/28

[Wayback/Archive] 13 Things No One Tells You About 3D Printing as a Beginner – YouTube only had a numbered index, so I commented the context index:

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Posted in 3D printing, CSS, Development, HTML, LifeHacker, Power User, Software Development, Web Development | Leave a Comment »

‘Tis but a scratch, just a flesh wound: 3D Printable Black Knight from Monty Python – Highlands Miniatures by Highlands Miniatures

Posted by jpluimers on 2024/08/19

Memories of a great movie scene with The Black Knight and King Arthur: for USD 5 you can get the template files for the [Wayback/Archive] 3D Printable Black Knight from Monty Python – Highlands Miniatures by Highlands Miniatures.

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Posted in 3D printing, Fun, History, Power User, Quotes | Leave a Comment »

Dutch hackerspaces and FabLabs

Posted by jpluimers on 2024/08/15

Before visiting Bitlair 2 years ago, I didn’t know there were so many hackspaces and FabLabs in The Netherlands.

There are (:

Starting points:

This is the hackerspace closest to my home: [Wayback/Archive] Technologia Incognita. At Louwesweg 1, 1066 EA Amsterdam, it is about 15 minutes bicycling distance (more information on in their wiki at [Wayback/Archive] ACTA – Technologia Incognita; onofficially on Twitter at [Wayback/Archive] Techlnc ☸ (@Techlnc) / Twitter).

Related tweets:

–jeroen

Posted in 3D printing, Development, Hardware Development, Power User | Leave a Comment »

Inline drying of 3D printer fillament?

Posted by jpluimers on 2024/08/09

A promising video:

[Wayback/Archive] Why are we drying filament this way? – YouTube

The trick is blowing warm air over the fillament strand while it is pulled through some tin cans.

This also works for drying used (and therefore wettened) silica gel beads on a 3D printer heat bed.

--jeroen

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Downloads: North Pi 3D Files — Fractal Design

Posted by jpluimers on 2024/08/07

Fractal Design Pi Case

[Wayback/Archive] GSnkczZWQAAW1GV.jpg (870×1200)

Since a few weeks, you can now download the [Wayback/Archive] North Pi 3D Files — Fractal Design

The concept North Pi created for Computex 2024 is now available to download as 3D-print files

  • [Wayback] 3D Print Files
  • [Wayback/Archive] Instrunctions [Wayback PDF View/PDF View]

    Required hardware

    • 3D Printer or access to 3D printing service.
    • Screws:
      • 13 x M2.5 threaded inserts, outer diameter 3.5 mm (other diameter will require altering the holes for the inserts) + tools for inserting them.
      • 9 x M2.5×4 (-6) for case assembly.
      • 4 x M2.5×4 (-6) or stand-offs for motherboard assembly.
    • Screwdriver.
    • Glue.

    Optional hardware

    • File or sanding paper for cleaning up print.
    • Wood strips (for authentic look) and shaping tools for those
    • 2 x 40 mm fans (max 10 mm thick). Check the documentation of your specific SBC on what voltage to use.
    • Paint and paintbrush/airbrush.

This was after a few other people recreated Pi cased in the style of the North Pi:

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Posted in 3D printing, Development, Hardware Development, Power User, Raspberry Pi | Leave a Comment »

Injection Travel Kit by frozenfoxx | Download free STL model | Printables.com

Posted by jpluimers on 2024/07/23

https://web.archive.org/web/20240712145919if_/https://archive.is/MTJf5/b31c22e9bbd617dc60c3203f66f4f167d3ff8066.webpThis is kewl: [Wayback/Archive] Injection Travel Kit by frozenfoxx | Download free STL model | Printables.com

Travel case for an injection kit. Includes spaces for draw and injection needles, syringes, vial, wipes, and bandages

Not just because they are injection kits, but because they form a base for other travel cases like one mentioned in the [Wayback/Archive] Comments: Injection Travel Kit by frozenfoxx | Download free STL model | Printables.com

Would it be possible to make this with a space for a horizontal storage for a similar sized via, and a 1-2mL ampule storage? The space could even be taken from one of the needle spaces, maybe.

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Glue 3D printed parts – Chris Bensen on Twitter: “@geerlingguy It depends. I often times use hot glue. Super glue is great. Epoxy is better. Jbweld is even better. You can even heat the two parts and melt them together. Bolts also work. Rubber band. Velcro’s strap.”

Posted by jpluimers on 2023/11/24

Various way to keep 3D printed parts together: [Wayback/Archive] Chris Bensen on Twitter: “@geerlingguy It depends. I often times use hot glue. Super glue is great. Epoxy is better. Jbweld is even better. You can even heat the two parts and melt them together. Bolts also work. Rubber band. Velcro’s strap.” / Twitter

–jeroen

Posted in 3D printing, LifeHacker, Power User | Leave a Comment »

Eff-Uno Racer v1 by chrisbensen – Thingiverse: Open Wheel Race Car from LEGO© and 3D printed bricks, with RC motors controlled by a Raspberry Pi and Arduino

Posted by jpluimers on 2022/08/17

This is so cool!

[Wayback/Archive.is] Eff-Uno Racer v1 by chrisbensen – Thingiverse

Welcome to the home for the things to print for the Eff-Uno Racer project ([Wayback/Archive.is] github.com/oracle-devrel/eff-uno-racer). Eff-Uno Racer is a LEGO© Open Wheel Race Car that you can build and remotely control. Most of it is made with LEGO© bricks but the motors are regular RC motors controlled by a Raspberry Pi and Arduino. Below are the extra parts needed.

The videos are via these three tweets:

List is at: [Wayback/Archive.is] Cool DevRebel Projects – YouTube

Videos when writing (by now there should be more):

  1. [Wayback/Archive.is] Cloud Car Episode 1 — Custom Breadboard for Pi Zero – YouTube
  2. [Wayback/Archive.is] Cloud Car Episode 2 — Pi Controlled Motors – YouTube
  3. [Wayback/Archive.is] Cloud Car Episode 3 — Shoving a Pi & RC Motor into a Toy Car – YouTube
  4. [Wayback/Archive.is] Episode 4: Shoving a Motor and Speed Controller into a Toy Car – YouTube
  5. [Wayback/Archive.is] Episode 5 — Next Stage: 3D Printed RC Servo Motor Adapters – YouTube

Via [Archive.is] Chris Bensen on Twitter: “If you want to build your own open source cloud connected toy race car follow this thing”

–jeroen

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Posted in 3D printing, Arduino, Development, Hardware Development, LifeHacker, Power User, Raspberry Pi | Leave a Comment »

PLA use outdoors? – 3D Printing Stack Exchange

Posted by jpluimers on 2021/07/05

[WayBack] PLA use outdoors? – 3D Printing Stack Exchange:

TL;DR: though bio-degradable, PLA needs high temperatures (> 50 Celsius) to degrade.

So in European summers, for light weight enclosures (like weather stations or signage), it should be fine.

  • [WayBack] Using PLA for Long-Term Outdoor Applications – IEPAS

    To biodegrade within 90 days, as described, the products have to reach 140 F for 10 consecutive days.  This requires a special facility, which few consumers have access to.  If your PLA products end up at the landfill, they will not degrade any faster than a petroleum-based product.

  • [WayBack] Polylactic acid: Degradation – Wikipedia

    Abiotic PLA degradation is due to 3 mechanisms:[35]

    1. Hydrolysis: The ester groups of the main chain are cleaved, dividing the molecule in two parts, thus reducing molecular weight.
    2. Thermal degradation: A complex phenomenon leading to the appearance of different compounds such as lighter molecules and linear and cyclic oligomers with different Mw, and lactide.
    3. Photodegradation: Sunlight induces degradation due to low-wavelength and high-energy UV radiation. This is a factor mainly where PLA is exposed to sunlight in its applications in plasticulture, packaging containers and films.

    The hydrolytic reaction is:

    {\displaystyle {\ce {-COO + H2O -> – COOH + -OH-}}}

    The degradation rate is very slow in ambient temperatures. A 2017 study found that at 25 °C in seawater, PLA showed no degradation over a year.[36]

    Pure PLA foams undergo selective hydrolysis when placed in an environment of Dulbecco’s modified Eagle’s medium (DMEM) supplemented with fetal bovine serum (FBS) (a solution mimicking body fluid). After 30 days of submersion in DMEM+FBS, a PLLA scaffold lost about 20% of its weight.[37]

    PLA samples of varying molecular weight were degraded into methyl lactate (a green solvent) by using a metal complex catalyst.[38]

    Some bacteria can also degrade PLA, such as Amycolatopsis and Saccharothrix. A purified protease from Amycolatopsis sp., PLA depolymerase, can also degrade PLA. Enzymes such as pronase and most effectively proteinase K from Tritirachium album degrade PLA.[39]

    Degradation is the reverse of the synthesis process in this Wikipedia picture:

     

     

For other materials and in-car usage, read:

–jeroen

Posted in 3D printing, Power User | Leave a Comment »

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