Author: Ray

Spot Welding Lithium Battery Cells

Tonight we used the spot welder again. We built it several months ago to make the battery pack for Lightning mini-bike. You can see two transformers in the picture. The little one is from a typical microwave oven. The internet was wrong – our milage varied – it was...
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Metal Lathe Update

We tore it down and cleaned up the gunk. Assessed the bearings – they look ok. But one gear is without one tool, but still operable.  We’ll see about replacing it sooner than later – but probably too late.  The problem finding the original gears. We’ll likely need to...
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Metal tools donation

We’d like to show some gratitude for a recent tool donation to the maker space from Marilyn Warling. She was gladdened to know that her husband’s tools will be getting well used. Thank you, they most certainly will! Several of these do require maintenance before use, so keep an...
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Laser Cut Coasters & Storage Box

When friends register at a store for wedding gifts, it is much easier to buy something they won’t hate.  But why avoid that risk? Instead, I launched off the giveaway coasters we made for the maker faire and made a series of custom coasters. But that wasn’t enough. They...
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ELM327 hacking

A few months ago (ok, almost a year) I decided to disassemble an ELM327 to see how the generic OBD reader works.  To my surprise the component selection and layout was very similar to what I would have hacked together.  They are based around a Microchip PIC with integrated CAN...
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3d Printer replacement part

Recently our laser suffered a fatal failure of the water pump.  This caused the tube to overheat and crack.  While waiting for the replacement tube and pump I decided to attempt to fix the pump by 3d printing a replacement impellor.  The first attempt failed because I used too...
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3D Chess Set

.   Member of Area515, Nabil Hanke, was intrigued with a chess set posted on Thingiverse, designed by ethanjurman. As the parts slowly accumulated, fellow makerspace members offered a suggestion of using the laser cutter to etch away the backing of a mirror to create the board’s gridwork. Finishing...
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Delta Blues

Actually there isn’t much blues going on. The Rostock Max kit that I picked up at the Kansas City Maker Fair is just now starting its life of printing. The assembly went fairly smoothly. We didn’t have to restart any major sections. Mike wired the board wrong and caused...
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