The models I cast are from 20grams of silver to 45 gram and I do have to soak at high temps for at a least 5 hrs. Always problems with anything less than 3 on heavy models. Love the video as always. Thank you.
I can cast in 3 hours as long as the parts have smoothish surfaces, that's from deciding to do it to having the pieces pickled and pin polished. Small flask (coke can sized), hot kiln, 730c, 45 min set time, only the best gypsum bonded investment. Tree, can, invest, 45min set, into 730, 1 hour hold once the temp has come back up, crash to cast temp (door open a bit), cast, quench and post process and don't miss the postal collection... Only suitable for waxes, not prints or other unusual model materials. I would only ever do this in an urgent situation, rushing in casting always leads to compromises. I'm just around 1m career castings completed and not many in this manner. Overnight is a process without quality compromises.
I almost exclusively use a 3hr burnout with Bluecast and Plasticast investment. It works on both 100mm and 120mm perforated flask. The only issue I’d say is the rest time for the plaster. I usually prefer to rest as much as possible and burnout as fast as possible. That way I can preload all my plaster, do any other work for a couple hours, then burn everything out for an hour at 720. I also make sure to vacuum my investment after burnout to get rid of any inclusions or flakes that may have been shocked out due to rapid heating. I get clean consistent castings 9/10 times 👌🏾
When you vacuum after burnout do you flip the button side down to vacuum or do you leave it button side up. Meaning while no molten alloy is in the flask
I'd suggest using a rosebud tip on the torch, larger flame size will give a quicker melt and less oxygen on the metal. Thanks for trying something to push the boundaries with casting.
Hey Guys Could i get your input here please? I Sell Carved and modified Brass Knuckles, the whole Resin burnaway process My Issue has always been removing the investment, Like i Literally use a little Pick to get to those tiny Holes Sometimes I Can't get my Hands on Acids, I see 2 Options here but i pray there's more Do you recommend a Sand Blaster? or an Ultrasonic Cleaner? I REALLY DO APPRECIATE YOUR INPUT HONEST TO GOD YOU GUYS ARE AWESOME
We have a video on a DIY silica de-vesting chamber, basically a Sand blasting cabinet that was assembled water tight and then we use power washer with a shortened gun. A sand blaster can also be used, per this video, but if you have room for 2 large units we'd reccomned doing the power washing for the majority of the investment and the sand blaster for the details IF needed. We've tried some chemicals in an ultra sonic bath and it doesn't compare to the power washer.
We did use flux, you can kind of see the evidence of that with the bronze. We simply didn’t film this as a tutorial so it’s just the aesthetic shots. And this experiment was done with Vintage resin so I don’t know what you mean about trying resin printing .
The models I cast are from 20grams of silver to 45 gram and I do have to soak at high temps for at a least 5 hrs.
Always problems with anything less than 3 on heavy models.
Love the video as always. Thank you.
I can cast in 3 hours as long as the parts have smoothish surfaces, that's from deciding to do it to having the pieces pickled and pin polished. Small flask (coke can sized), hot kiln, 730c, 45 min set time, only the best gypsum bonded investment. Tree, can, invest, 45min set, into 730, 1 hour hold once the temp has come back up, crash to cast temp (door open a bit), cast, quench and post process and don't miss the postal collection... Only suitable for waxes, not prints or other unusual model materials. I would only ever do this in an urgent situation, rushing in casting always leads to compromises. I'm just around 1m career castings completed and not many in this manner. Overnight is a process without quality compromises.
I almost exclusively use a 3hr burnout with Bluecast and Plasticast investment. It works on both 100mm and 120mm perforated flask. The only issue I’d say is the rest time for the plaster. I usually prefer to rest as much as possible and burnout as fast as possible. That way I can preload all my plaster, do any other work for a couple hours, then burn everything out for an hour at 720. I also make sure to vacuum my investment after burnout to get rid of any inclusions or flakes that may have been shocked out due to rapid heating. I get clean consistent castings 9/10 times 👌🏾
When you vacuum after burnout do you flip the button side down to vacuum or do you leave it button side up. Meaning while no molten alloy is in the flask
I'd suggest using a rosebud tip on the torch, larger flame size will give a quicker melt and less oxygen on the metal. Thanks for trying something to push the boundaries with casting.
Yeet that envelope into the Sun
😂😂😂
Hey Guys Could i get your input here please?
I Sell Carved and modified Brass Knuckles, the whole Resin burnaway process
My Issue has always been removing the investment, Like i Literally use a little Pick to get to those tiny Holes Sometimes
I Can't get my Hands on Acids, I see 2 Options here but i pray there's more
Do you recommend a Sand Blaster? or an Ultrasonic Cleaner?
I REALLY DO APPRECIATE YOUR INPUT HONEST TO GOD YOU GUYS ARE AWESOME
We have a video on a DIY silica de-vesting chamber, basically a Sand blasting cabinet that was assembled water tight and then we use power washer with a shortened gun.
A sand blaster can also be used, per this video, but if you have room for 2 large units we'd reccomned doing the power washing for the majority of the investment and the sand blaster for the details IF needed.
We've tried some chemicals in an ultra sonic bath and it doesn't compare to the power washer.
The sound of the videos are getting too low, thanks
You didn't use flux?
Try resin printing.
We did use flux, you can kind of see the evidence of that with the bronze. We simply didn’t film this as a tutorial so it’s just the aesthetic shots.
And this experiment was done with Vintage resin so I don’t know what you mean about trying resin printing .