well, here it is...my air assisted Master Caster...instead of using your arm and hand to operate a simple valve controls the motions....yes, it takes some getting used to but it sure does save wear and tear on my already stuffed right shoulder....LOL
i should note (another forum member mentioned this) that even though the MC is air assisted it can be operated unassisted as was intended...actually i begin the casting session manually to get the mold up to temp then switch to semi-auto...
BTW, i am running the input pressure at 75psi, the mold carrier air cylinder is flow controlled while the lead pour cylinder is full flow and pressure...
video......... http://youtu.be/H0Vkfr4l_Qc
detail images....... http://s4.photobucket.com/albums/y13...agma%20Caster/
Parts list…all from www.mcmaster.com/#
1 – 3368K31, hand operated lever control valve, spring return, exhaust center, $64.02
1 – 8812K32, air regulator w/ gauge, $29.43
2 – 5779K159, tube swivel,1/4 MIPS-3/8” tube, $4.50ea
1 – 62005K333, flow control valve, 3/8-3/8” tube, $27.70
10 – 5112K65, nylon tubing, 3/8” OD, $0.77/ft
1 – 6498K145, SST air cylinder, 3/4” bore-5” stroke, spring return, nose mount, $30.15
1 – 6071K12, forged clevis end, 1/4-28, $4.98
1 – 6498K195, SST air cylinder, 3/4” bore-1/2” stroke, spring return, nose mount, $18.02
1 – 6498K42, rod clevis for 3/4" bore, $4.08
2 – 5779K157, tube swivel, 1/8" MIPS-3/8” tube, $5.10ea
1 – 8975K483, 6061 aluminum bar, 5/8 x 1-1/4 x 12” long, $9.31 (for nose mount cylinders, stand off and pivot)
1 – 4501K72, 1/4" SCH40 brass pipe, 12”L, $8.88 (cut to 2.125” for 1/2” stroke cylinder stand off)
1 – 91251A370, 5/16-24 x 3” SHCS, $7.02 (for mounting 1/2” stroke cylinder to lead valve)
2 – 97345A578, SST 5/16 x 1/2”L shoulder x ¼-20 shoulder screws, $3.54ea (for 5” stroke cylinder pivot)
1 – 9664K19, cut to length extension spring, .375” OD x .035” wire, $3.56 (cut to 4” for mold return spring)
i did add a splash shield to the forged clevis to protect the return spring from lead spatter and i fabricated a splash shield for above the bullet tray to protect the cast bullets from lead splatter from over filling the mold....
wyman....