I have been working on my AP for Structures in the NMRA modeling program so I have to have the buildings judged. I light all of my buildings and in the past took a power pack with all the wiring, kinda of a mess. So I decided to create my own portable power pack. It consists of a buck converter, two wire snap connecter and a nine voit battery (with connector). Measuring the various parts I used Tinkercad to design a box to hold all the parts in place and here is what I came up with.IMG_2746.jpeg
IMG_2747.jpeg
So that buck converter includes an LED to show output voltage? Snazzy!
(When I did the box for my Arduino powered signal and crossing controller, I glued Wago Connectors to the box for the external connections.)
dave
The buck converter on costs $1.85 each from Tuni, the battery connector less then .25 and the snap connector a dime. The 3D printed resin came in at $.50 so it worked out great.
These buck convertors come with control buttons to show input and output voltage showing result on the screen, a lot of stuff in a small package.
Jim
That's a nice tool. Not sure I'd build one of my own; I bought a smaller-than-a-shoebox lab DC power supply with more features several years ago.
Jim,
Nice job on the power box.
Tom
Interesting device I had never heard of before :o . Well done ;) .
Amazon appreciates this, too. ;D