UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Fine Clay Mixed with Sand: Worked Loam for Casting Moulds
Clay mixed with sand is loam, the stuff of bricks and of the clay mould packed round a wax model for casting. Soak the clay, work in fine sand, pick out every stone, and keep working it: the more it is worked, the denser and more uniform it gets.
The picture: our diagram, clay and sand worked together and the stones picked out.
Oqalayo
2 hours plus a night's soak
Imiyalelo
1
1
Soak the clay
Soak the clay
Break the clay into lumps, put it in the trough, cover with water and leave it overnight to soften.
Izinto zokwakha zalesi sinyathelo:
Ubumba1 kgAmathuluzi adingekayo:
Ifosholo
Umgqomo wokuxuba
Ibhakede
Amanzi2
2
Work in the sand
Work in the sand
Pour off spare water. Add fine sand, about one part to two of clay, and knead or tread it in until no streaks show.
Izinto zokwakha zalesi sinyathelo:
Isihlabathi Esicolekile0.5 kgAmathuluzi adingekayo:
Umgqomo wokuxubaIfosholo3
3
Pick out the stones
Pick out the stones
Cut the mass in slices and pick out every stone, root and hard lump. Knead again; the more it is worked, the denser and more uniform it becomes.
Amathuluzi adingekayo:
Umgqomo wokuxuba4
4
Keep it damp
Keep it damp
Wrap the loam under a tarp to keep it workable until you build the mould.
Amathuluzi adingekayo:
Isihenqo esingangeni manzi5
5
Your mix
Your mix
Ilayisha incwadi ye-Jupyter…
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