I did my best to make this design safe but overall I am an amateur and hobbyist. I can't guarantee you won't hurt yourself during making this thing, so if you feel uncomfortable to work with electricity, please don't start playing with it.
As well, this is not laboratory power supply. I don't know the level of noise or any other parameters which is required for lab PSUs, so don't even think about this thing that way.
Bench top power supply built on top of an old TFX 250W power supply (you can probably by one on your local market for about $10-15)
The design is inspired by the "Back Horn Speaker V2.0 BL2 - Bluetooth, Active, Passive" by guppyk (https://www.thingiverse.com/thing:4668173)
Some of the above links are affiliate. If you feel uncomfortable with this try to search products on your own.
Please look at the Thing Files list for full guide
Wiring scheme is included in files list (PDF) and on the preview images list.
Prepare yourself for a long print. I am printing quite fast (about 100-120mm/s) and I was printing outer walls for about 14h on 0.28 layer height (0.4 nozzle).
| Bench_top_PSU_wiring.pdf | 1.1MB | |
| DIY_BENCH_POWER_SUPPLY_-_Assembly_guide.pdf | 1.0MB | |
| inner-wall.stl | 190.1KB | |
| leg.stl | 39.7KB | |
| lid-bottom.stl | 30.7KB | |
| lid-cut-template.pdf | 1.4KB | |
| lid-holder.stl | 38.6KB | |
| lid-top.stl | 11.2KB | |
| outer-walls.stl | 672.7KB | |
| tfx-diy-psu.step | 11.8MB |
