St. Cloud, Twin Cities and rural Minnesota's one stop shop for electronic device repair (phone repair, tablet repair, laptop repair, tv repair, etc), Tech support and IT consulting for small/medium business. Maker/Hacker space friendly offering a number of arduino and raspi components in stock.
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Some of the projects I was working on
The above board is the first one "sent out" for.
Sent out as in, I made the design and sent it to a 3rd party for manufacture.
This was the evolution of my cd welder board. I intend it to be a multi purpose weld and cutting process controller with modular design.
I intend to try laying it out as a 4 layer board as well.
That would give two options. The first would be roughly the same dimensions but much easier to work with component sizes. The second would be a board about a third the size. Some of the routing on this was a gigantic pain in the ass with two layers.
Actually the size to be further reduced on two layers by moving some of the power components to a separate board.
Do you have a lawn tractor you use to plow snow? Ever wondered if you could make a manual snow plow attachment into a push button? A friend of mine had a riding lawn mower and snow plow blade attachment. Every winter he used the riding lawn mower to plow the driveway. The plow was a kit that bolted on the front of the lawn tractor and it had a mechanicaly actuated adjustable snow plow blade. The issue and this project came about when the arm to adjust the snow plow blade broke. I had just bought a mig welder. I had also watched linear actuators capable of handling 300lbs of force drop to $25 on ebay. Here's what I came up with for converting a riding lawn mower snow plow into an electricity adjusted lawn tractor plow. Repair The lawn tractor snow plow kit had seen better days. The fork that attaches it had bent /deflected and spread. I used a map gas torch and a bench vise to squeeze the tongs back and then welded some L channel angle iron on the sides. Less Play I also tack weld
In this multi part series on diy circuit board manufacturing/fabrication I'm going to cover my diy, vacuum pull down UV LED exposure box. If you are looking for a description of the entire fab process click here UV Exposure Rig The photos bellow are of the uv lithography exposure box I cobbled together. It also features vacuum pull down. The source: A 4.1w High luminous efficiency 365nm UV LED. Sourced from digi key mid 2016. Model LZ1-00UV00
This post is for anyone interested in owning or building a CD welder. I wanted a reliable Resistive spot welder for lithium ion pack construction and or repair. I didn't want to spend 3k or buy from china. I decided to design and fabricate my own. Bellow is my first crack at a Mosfet Switched capacitive discharge mcu controlled spot welder. This post is a work in progress. If you've stumbled across in hoping to build your own cd welder feel free to ask questions in the comments section. I'll provide any help I can. My CD Spot Welder Here's pics of the first working version from 2018