Dec 21, 2018, S&P low

Feb 14, 2020, S&P high

March 20, 2020, S&P low

Dec 31 2021, S&P high

June 15, 2022 ... S&P low

Nope. Maybe works but not worth the hassle maybe.

• Lubuntu fails to launch Prusa (just spash screen)
• Kali can't connect to the internet
• Ubuntu Studio doesn't allow AppImages to run (even with chmod, and even with fuse and fuselibrary2 or whatever)
• Mint is Ubuntu-based, so no.
• Archlinux is hard to install
• Manjaro is based on arch, so try it.

Old English

https://www.st-andrews.ac.uk/~cr30/vocabulary/

Greek

https://en.wiktionary.org/wiki/Appendix:Ancient_Greek_words_with_English_derivatives

Casting Metal in Molds

• plaster for silver (both fine and sterling), ceramic for bronze, sand for iron, and selastic rubber for pewter. There's no issues with pouring metal into plaster,
• Plaster does not melt; nor does ceramic, and sand is fine at the temperatures used for cast iron. Similarly, selastic is temperature resistant to a certain level, and pewter melts at a comparatively low temperature, so it won't melt in that case.

microwave melting -- there are inexpensive microwave kilns that will melt small amounts ("jewelry" quantities) of many metals.

SAND

Aquarium sand from a pet store is very find (or play sand but you have to sift it)

Kitty Litter (clay)

• 95% or 90% sand with the clay, by weight
• plastic bag and pound with a hammer, sift out the fine stuff (powdered sugar consistency)

add WATER

• so it's moist not wet, use a spray bottle
• consistency where it'd be great to make sand castles

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GLASS

• soda lime glass at 2200degrees
• mold is closed to keep it hot and then opened when blower nears

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CNC mold from 3d files

• Step Files or IGS is the format to send someone, not STL, so they can make a file to cut a mold.
• (STLs don't have curves, they're huge in filesize (means you have to scale it again when you open it)
• https://www.youtube.com/watch?v=i1MfnNz3xWk at like 19:00

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INVESTMENT CASTING

• zircon or other very fine ceramic slurry
• colloida-cilica binder and few cilica flowers is the liquid, water based
• dries for up to 3 hours (2 to 3 degrees f)
• 7 or 8 times
• and a final 24 hour dry just to make sure
• 68 degrees and then heated to melt the wax (they cool it to shrink so when it expands we dont crack the shell
• half hour to an hour at 200 degrees
• melt steel at 3000 degrees into oven at 1800 degrees and pour it into the (still hot) shell
• they buy stamping scrap, washed

Glaze

• cilica, alumina, and some kind of flux, alongside pacifiers, colorants, whatever, feldspar, nephilim cyanide,
• red iron oxide (deep green after gas-fired kiln in reduction atmosphere. If in oxidized atmos, putrid yellow

SILVER

• 28.35 grams in an ounce
• a typical gold ring might be 3-7 grams
• $20 per ounce of silver
• $5 or so dollars to make a ring of silver

3D PRITING NOTES

if the machine is too hot, the plastic melts flat. If it's too cold, it doesn't melt and so doesn't stick.

Doing levelling and pre-heating makes a difference

ISSUES

Thin layer of PLA stuck to build plate and can't remove. Heat hot (max is 100 but probably 70 or 80 is enough and it will peel off with a plastic scraping tool)

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Ender 3 3d Printer: Assembly and Set Up

Ender 3 (not pro). Came with the flex bed.

Full tutorial: https://www.youtube.com/watch?v=dQ0q9zLygTY

Assembly takes about 1.5 hours, then setup another 20 minutes

Assemble with directions. It comes with 3 metal (things) and you just use one. The others are spares. The little blue parts do nothing, I think.

Make sure the 2 wires for X and E are in the right spots (you'll get an error message when you try to Auto Home that says ‘Homing Failed: Printer Halted Please Reset’, so you just switch them and try again to Auto Home).

The USB slot is not on the screen part but on the computer part.

Check voltage before plugging in.

Clip the filament (otherwise it won't go in) at a 45 degree angle. Feed it in from the outside using the lever and pushing. It goes right through that unit into the tube (which you connect and it should just basically feel locked in place)

SETUP

Auto Home to see if all the pulleys are working.

Level the bed: In the screen go to Prepare > Disable Steppers, so now you can move the bed around manually. move the nozzle to each corner and use the knobs underneath to go almost touching. Each corner. Then take a piece of paper and do the same, so you just get a bit of resistance sliding the paper. Then Auto Home again, and then do the paper thing again (it might have moved quite a bit so don't be surprised). Now you can print.