Revision as of 12:01, 17 September 2024

Notes

Fine Detail
- Strikingly precise
- wears away quickly - like in fewer than a dozen castings. (GPT says 30 - 50 castings)
- This supports the 3 step mold:
  - 3D Print (costly, time consuming, high precision, master)
  - Silicone or Urethane mold (cheaper, rubbery / durable)
  - Plaster mold (good for 20 shots, cheap)
  - You could hit a rhythm of creating a new mold every day, with 20 active molds at a time and a 24 hour pull cycle.
Porosity of the bisque is critical for underglaze adhesion.
- Fire on the low end of cone 06 - 04?
- Don't get the surface dirty.

1.75 specific gravity
- Have tried as low as 1.7, which I like.
- Have tried as high as 1.85, which is too thick for me.
- Seems to effect the thickness of the casting - more so than does the dwell time before pouring off.
too much deflocculant = gels quickly
- Just right = gels eventually, like hours
- OK - never gels but very liquidy
recipe 1
- 40 fl oz thick oatmeal clay
- 12 ml sodium silicate solution
- 1/4 tsp soda ash (dissolved in water)
barium carbonate to capture salts
sodium ash to dissolve lignite (small)
filter to remove large lignite

@@ Line 5: / Line 5: @@
 ** Strikingly precise
 ** wears away quickly - like in fewer than a dozen castings. (GPT says 30 - 50 castings)
+** This supports the 3 step mold:
+*** 3D Print (costly, time consuming, high precision, master)
+*** Silicone or Urethane mold (cheaper, rubbery / durable)
+*** Plaster mold (good for 20 shots, cheap)
+*** You could hit a rhythm of creating a new mold every day, with 20 active molds at a time and a 24 hour pull cycle.
 * Porosity of the bisque is critical for underglaze adhesion.
 ** Fire on the low end of cone 06 - 04?