Difference between revisions of "Casting101"

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(TODO List for Casting 101)
(Working)
Line 9: Line 9:
  
 
== TODO List for Casting 101 ==
 
== TODO List for Casting 101 ==
* Get Class Approved
+
* Get "Class" Approved
* Get approval for Forge/Foundry  
+
* Get approval for Forge/Foundry
* Find Local Supplier of:
 
* Acquire and move large/heavy objects to space:
 
** Fireclay and Bentonite clay - pottery house probably
 
** 1 Bag Perlite (Airy Potting soil addative (Vulcanite will not work . . .))  This will be huge and at least 10x more that we need.  Anyone have a garden that needs the rest?
 
** 1 bag of portland cement (Not concrete!)
 
** One bag of regular sand
 
** One bag of fine grit "ashtray" sand
 
** 1 Small steel barrel (roughly the size of 4 gallon paint bucket or something slightly larger like a scrap water heater, scrap propane tank, medium steel trash can, or similar)
 
** 15-20 feet of scrap steel bits (1/4-1/2 inch rod and misc. scrap bits)
 
** Something largish to mix refractory in . . . (wheelbarrow?)
 
  
== Day 1 - Refractory casting==
+
*Scrounge list:
 +
**Aluminum!  (Not cans, they are mostly plastic)
 +
**Dust-buster/small blower fan of some variety
 +
**Empty 2-liter soda bottle
 +
 
 +
*Steel Bits:
 +
** ~20ft of 1/4 rod long segments
 +
** Some 1/4-1/2 inch tube/pipe
 +
** Large segments of L-channel (2-inch preferable)
 +
** Some small flat rectangular scraps
 +
 
 +
== Day 1 - Refractory casting (Other t==
 
Necessary tools:
 
Necessary tools:
 +
* Something largish to mix refractory in . . . (wheelbarrow?)
 
* Hose + Shovel + Trowels
 
* Hose + Shovel + Trowels
 
* Trashbags + Cardboard
 
* Trashbags + Cardboard
* Welder might be handy
+
* Misc. welding going on today
 +
 
 +
Things we will need to build the refractory shell:
 +
* Fireclay and Bentonite clay - pottery house probably
 +
* 1 Bag Perlite - Airy Potting soil addative (Not Vulcanite) This will be huge and at least 10x more that we need.  Anyone have a garden that needs the rest?
 +
* 1 bag of portland cement (Not concrete!)
 +
* One bag of regular sand
 +
* One bag of fine grit "ashtray" sand
 +
* 1 Small steel barrel/trash can to serve as the outer shell.  This should be roughly the size of 4 gallon paint bucket or something slightly larger like a scrap water heater tank, scrap propane tank, medium steel trash can, or similar.  Doesn't have to be heavy duty, we are going to fill it with cement and reinforce it significantly. 
 +
* Burner hole tube - Already at the space. 
 +
 
 +
== Day 2 - Propane Hoisery ==
 +
*Teflon  Tape
 +
*2 #63 drill bits
 +
*1 - 1/4inch-ntp
 +
*1 - 1/4inch-ntp Pressure gauge (0-20PSI or so.)
 +
*5 - 1/4inch-ntp pipe nipples (misc sizes b/t 1/2 to 2inch long)
 +
*20ft of double walled, weave reinforced vinyl tubing.  1/4in ID
 +
*2 pipe tighter thingys of matched size (about 1/2in max OD)
 +
*1 Propane nut.  This is a bitch to find, and depends on the tank we have. 
 +
 
 +
 
  
 
We are roughly going to follow the directions found here, with several notable alterations to the size and wall-thickness:
 
We are roughly going to follow the directions found here, with several notable alterations to the size and wall-thickness:
 
[http://www.backyardmetalcasting.com/bucketfurnace1.html]
 
[http://www.backyardmetalcasting.com/bucketfurnace1.html]

Revision as of 06:20, 9 February 2011

Goals of Casting 101

  • Build the shell for a foundry/forge
  • Fill with refractory (wait a week or so for aggregate to set)
  • Plumb the propane hosiery
  • Weld and construct foundry tools (Tongs, pouring ring etc.)
  • Fabricate flasks and make mold construction tools
  • Teach basic (sand) mold making. (We can get as complex as you want on this one, especially if we have a Makerbot!)
  • Cast some things!

TODO List for Casting 101

  • Get "Class" Approved
  • Get approval for Forge/Foundry
  • Scrounge list:
    • Aluminum! (Not cans, they are mostly plastic)
    • Dust-buster/small blower fan of some variety
    • Empty 2-liter soda bottle
  • Steel Bits:
    • ~20ft of 1/4 rod long segments
    • Some 1/4-1/2 inch tube/pipe
    • Large segments of L-channel (2-inch preferable)
    • Some small flat rectangular scraps

Day 1 - Refractory casting (Other t

Necessary tools:

  • Something largish to mix refractory in . . . (wheelbarrow?)
  • Hose + Shovel + Trowels
  • Trashbags + Cardboard
  • Misc. welding going on today

Things we will need to build the refractory shell:

  • Fireclay and Bentonite clay - pottery house probably
  • 1 Bag Perlite - Airy Potting soil addative (Not Vulcanite) This will be huge and at least 10x more that we need. Anyone have a garden that needs the rest?
  • 1 bag of portland cement (Not concrete!)
  • One bag of regular sand
  • One bag of fine grit "ashtray" sand
  • 1 Small steel barrel/trash can to serve as the outer shell. This should be roughly the size of 4 gallon paint bucket or something slightly larger like a scrap water heater tank, scrap propane tank, medium steel trash can, or similar. Doesn't have to be heavy duty, we are going to fill it with cement and reinforce it significantly.
  • Burner hole tube - Already at the space.

Day 2 - Propane Hoisery

  • Teflon Tape
  • 2 #63 drill bits
  • 1 - 1/4inch-ntp
  • 1 - 1/4inch-ntp Pressure gauge (0-20PSI or so.)
  • 5 - 1/4inch-ntp pipe nipples (misc sizes b/t 1/2 to 2inch long)
  • 20ft of double walled, weave reinforced vinyl tubing. 1/4in ID
  • 2 pipe tighter thingys of matched size (about 1/2in max OD)
  • 1 Propane nut. This is a bitch to find, and depends on the tank we have.


We are roughly going to follow the directions found here, with several notable alterations to the size and wall-thickness: [1]