In this episode of “Get It Together,” Anna De Souza puts different jewelry hacks to the test. She tries cleaning her gold and silver jewelry with Coca-Cola, and with baking soda and tinfoil. She also experiments with using dental floss to remove a stuck ring
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How To Clean Jewelry With Coca-Cola And Baking Soda, Plus More Hacks | TODAY
Pulling an old HP printer to bits for parts, and it suddenly turned into a CNC machine conversion. Took me 4 days, but there were a few small hurdles to overcome. The brains of it is an Arduino Uno with a Protoneer CNC shield running GRBL. (Big shout out to https://info.protoneer.com/1)
The Z and X axis runs on ball bearing drawer slides, and they have absolutely no vertical or horizontal play.
The threaded rods run through MDF thread inserts and using a small piece of 6mm acrylic for a ‘nut’ to lock it into the mounts. The inserts don’t seem to have the same amount of backlash as a standard nut.
All electrics (incl a PSU) is at the end where the ink carts used to be.
The X axis is a bit noisy because it is mounted to the printers steel base plate, but some nylon washers should dull that down a bit.
The dremel flexi-shaft runs down the inside of the 1″ square tube (the bit the pen was zip tied to) on the Z axis.
PS…I’ve never attempted anything like this before, I’m still learning about the whole CNC thing (spot the sticky notes to remind me what axis I was moving!). The fact that I could use the original bodywork (panels) was more good luck than good design….except when it comes to drilling holes for USB cables. That was just crappy “eye-ometer”.
UPDATE: Here is a blog I wrote up about the build, including the first runs.
https://justcheckinm8.blogspot.co.nz/