Brutkey

smells of bikes
@smellsofbikes@mastodon.social
A bunch of digital waveforms on a scope, in three different traces a0fe88ebccb45acc.jpg Aluminum intake manifold casting with lower half fly cut and shiny upper half still showing the 3d print texture. 381b4c1d8c537238.jpg Black hook in front of floor rug loom f6da1f57464a6cbf.jpg Dumb joke: picture of nopales leaves cleaned on left, and nopales leaves still covered in spines on right, labeled nopales and lotsapales b3c31d6ab5e12b45.png 77e5ef789e0ff13e.mp4 Rubbish in the aluminum including ash from the PLA burnout 3c6a6926066eec41.jpg Little lacunae in the edge of the intake pipe. I could weld this. a51047337472b277.jpg Both sides, one with the helical sprue very obvious and the almost empty pour basin above it 7b9aa2242881df08.jpg Poured molds a963566f8e432a3c.jpg Aluminum reflecting the sky and clouds 09d5e97810e0ef10.jpg Investment molds in greensand with steel weights (splitting wedges) 3d429a37b364ce2d.jpg Down in hell with a big gob of molten aluminum and the temp gauge down in the crucible 767297ac50cd5de6.jpg Almost pouring temperature. I pour as cold as possible to minimize shrinkage 83099806e299d622.jpg Some aluminum scrap preheating on the foundry exhaust because heat transfer is vastly better here than in a crucible where nothing has yet melted, and this raises efficiency anyway 6348ac7344f1f3f3.jpg Metal bucket lined with refractory clay 44c510757805fb7b.jpg The depths of the furnace with a flame visible and some shiny aluminum in the crucible c44d18caee952430.jpg Yard with snow and a workshop ac9b5b8e97a0a24d.jpg