$10 DIY Variable DC Bench Power Supply 3D printable model by tman67234

$10 DIY Variable DC Bench Power Supply

Source: Thingiverse by tman67234

The $10 DIY Variable DC Bench Power Supply is a free printable 3D model from Thingiverse by tman67234. I was able to build mine for $10.46 because I had lots of used parts laying around from various projects. You can download the STL file from the original listing below and print it at home.

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170 saves Source: Thingiverse Updated 2026-04-19

Tags: $10, DIY, Variable, DC, Bench, Power, Supply

About this model

I was able to build mine for $10.46 because I had lots of used parts laying around from various projects. However, the parts list below shows everything needed. All I needed was the display, dc-dc converter board, and the potentiometers. The switch controls the main 12v power from the power adapter, which powers the dc-dc converter board and fan when switched on. The dc-dc converter board uses small potentiometers, so I desoldered them and replaced them with large ones that could be mounted off the board. The left potentiometer is voltage control and right is amp control, as seen here. The display is wired like this, except that I powered the display on the input side of the dc-dc converter board. And that's it! Enjoy! Here the parts: * DC-DC Step Up Down Board | $3.17 * Digital Voltmeter …

Frequently asked questions

Is this 3D model free to download?
Yes. $10 DIY Variable DC Bench Power Supply is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by tman67234.
Who made this model?
Designed by tman67234, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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