CAP Talk

Operations => Tools of the trade => Topic started by: arajca on July 27, 2018, 10:46:31 PM

Title: Ebay power supply cover
Post by: arajca on July 27, 2018, 10:46:31 PM
A few months ago I picked up a 3d printer. One of my planned prints was a modification for a 480w (40 amp) power supply I had from Ebay. After several attempts, I came up with this:
(http://i64.tinypic.com/8xke93.png)

As you can see, I used standard automotive fuses (common and inexpensive) and power pole connectors. The power cord socket contains a built in fuse. I think I spent $15 for all the parts and print job took 14 hours. Took me about an hour to assemble it.

If you are interested in one and have a 3d printer, you can download the files from Thingiverse (https://www.thingiverse.com/thing:3008892).
Title: Re: Ebay power supply cover
Post by: Oregon on July 31, 2018, 02:14:03 AM
Very cool!  Is the PS you used still available?  Where did you procure the other parts?
Title: Re: Ebay power supply cover
Post by: arajca on July 31, 2018, 03:16:52 AM
As far as I know, it still is.

Volt meter: E-Bay (https://www.ebay.com/itm/5PC-Mini-Digital-DC-2-5V-30V-LED-Panel-Voltmeter-3-Digital-Display-Voltage-Meter-/253639387543?hash=item3b0e15e997)
Fuse holder: E-Bay (https://www.ebay.com/itm/Panel-Mount-Fuse-Holder-5pc-ATC-ATO-APR-Water-Resistant-Quick-Connect-30A-max-5X/152239192989?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649)
Power Pole Connectors: Power Werx (https://powerwerx.com/anderson-powerpole-connectors-30amp-unassembled)
Plug: E-bay (https://www.ebay.com/itm/Sodial-R-Inlet-Male-Power-Socket-with-Fuse-Switch-10A-250V-3-Pin-IEC320-C14-AD/162638938856?ssPageName=STRK%3AMEBIDX%3AIT&var=461639299002&_trksid=p2060353.m2749.l2649)
Power supply: E-Bay (once again) (https://www.ebay.com/itm/DC-12V-5-10-15-20-25-30-40-50A-Switching-Power-Supply-Driver-for-LED-Strip-Light-/202308391047?var=&hash=item2f1a851087)
Connectors for fuse holders and plug: E-Bay (https://www.ebay.com/itm/200-Pack-16-14-Gauge-Female-Quick-Disconnect-Blue-Vinyl-Crimp-Terminals-187-US/222428464347?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649) These connectors are narrower than the 1/4" spade connectors found in most hardware and auto parts stores

Connectors to power supply, local hardware store.
Title: Re: Ebay power supply cover
Post by: Oregon on July 31, 2018, 03:31:40 AM
Have you done any testing with the PS on a radio?  I have an old comm guy who screams about using switching power supplies for radios as they put a buzz or hum onto the transmitted signal.  My experience with modern switching power supplies is that they put out really clean power, but I have not had time to hook them up to a radio and experiment yet.
Title: Re: Ebay power supply cover
Post by: Larry Mangum on July 31, 2018, 12:52:39 PM
What is the size of the case? I have a 3D printer, but I cannot print anything bigger than 15cm x 15cm x 15cm.
Title: Re: Ebay power supply cover
Post by: arajca on July 31, 2018, 12:53:05 PM
I've used it on VHF and HF with no problems.
Title: Re: Ebay power supply cover
Post by: arajca on July 31, 2018, 12:55:29 PM
Quote from: Larry Mangum on July 31, 2018, 12:52:39 PM
What is the size of the case? I have a 3D printer, but I cannot print anything bigger than 15cm x 15cm x 15cm.
It's about 120mm x 140mm x 50mm
Title: Re: Ebay power supply cover
Post by: audiododd on August 01, 2018, 03:41:45 AM
This is a neat idea.  I may have to save this for a later project.