 OT: Backyard metal foundry almost done :), aluminum/brass casting getting closer... |
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| fiid |
 Mar 20 2006, 11:08 PM
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#21
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Turbo Megasquirted Subaru Member  Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California  |
Are you thinking of going into Real Estate Sales? |
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| jonwatts |
Mar 21 2006, 12:09 AM
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#22
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141  |
Not here, back on the east coast. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) "There once was a man from Boston, Mass" |
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| Mueller |
Mar 21 2006, 10:45 AM
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#23
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914 Freak! Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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Well....as usual, I didn't do my homework and i bought the 1st "cheap" crucible I saw on eBay....it'll hold 28# of aluminum but is way too big for my furnace (I thought it better to build and learn on a smaller furnace)....sooooo I bought another crucible that'll hold 14# and it's a tight fit and not too easy to grab with the tongs so I know have another one which is a tad bit smaller and safer to use. I have Petrobond ® for for the sand, it's a commercial product that has found it's way to the hobbiest...oil based
have you been talking to Sherryl? She just mentioned having me get "snipped", nothing about removing them completly (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) |
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| jsteele22 |
Mar 21 2006, 10:56 AM
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#24
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Senior Member Group: Members Posts: 727 Joined: 24-August 05 From: Colorado Springs, CO Member No.: 4,653 |
I vote for a set of jack stands, made out out of beer cans. |
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| rhodyguy |
Mar 21 2006, 11:03 AM
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#25
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,249 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
oil based? i bet that will be smokey. i wonder if after one use the oil base is pretty much burned out? check out "foundries" in the phone book mike. i bet you can buy some 5 gal buckets of green sand for next to nothing. where are the furnace pictures? another thread? did you spring for the pyrometer yet?
k |
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| Mueller |
Mar 21 2006, 11:33 AM
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#26
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914 Freak! Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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apperantly not that bad.....it seems the vast majority of hobbiest use the PetroBond with great success.......the stuff can be reused, only the material in direct contact with the metal get's "cooked" (1/8" to 3/8" sand thickness), the surrounding sand is fine to reuse...the "cooked" sand can be thrown out or recycled to be used again... no, I have not gotten a pyrometer yet, still looking at the different units that I can make (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) Check out this thing, with a 3D model (and some cash (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) ), the machine will make your mold for you "Print" your own mold and cores for casting Attached image(s) 
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| Bleyseng |
Mar 21 2006, 12:13 PM
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#27
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Yeah, its totally painless.....for her!!! haha They should have done something "while they were in there" during the birth process. Oh, if you do go ahead with this....she better be ready for sex with you 5 times a day for the first week. |
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| Brian Mifsud |
Mar 21 2006, 02:32 PM
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#28
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Mechanical Engineer Group: Members Posts: 981 Joined: 3-March 03 From: Penngrove, CA Member No.: 384 Region Association: None |
Mike, Can't tell from photo, but is your burner inlet offset (more like tangential) to the cylinder? The furnace sites I've been looking at put the burner tangentially rather than radially to the cylindrical interior, then they "blast" the flame with a blower. This gives the swirling affect and superheats the interior. Hold on to that 'oversized' crubible. The house I rented has a 55 gallon drum sitting in the backyard.... it's MINE NOW!! I should be able to build a BIG ASS furnace... I'm feeding that baby with crankcase oil though..can't afford the propane bill for something that big. I believe a leather/Nomex apron and/or leggings are your best bet to keep from getting burned. Keep up the progress before those babies sink their teeth into you... (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| Mueller |
Mar 21 2006, 02:39 PM
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#29
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914 Freak! Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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Yes, it is offset......not only have I been checking out all the websites related to this, but I've added at least 15 books on the subject to my office library.... |
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| maf914 |
Mar 21 2006, 02:48 PM
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#30
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Not a Guru! Group: Members Posts: 3,049 Joined: 30-April 03 From: Central Florida Member No.: 632 Region Association: None
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No way that's going to happen. I've seen photos of those California boys at their sawzall parties and all they ever wear are shorts, teeshirts and flip-flops! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) |
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| ChrisFoley |
Mar 21 2006, 04:27 PM
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#31
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I am Tangerine Racing Group: Members Posts: 7,990 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Mike,
What size crucible would fit best in your furnace? I have these two collecting dust here. The bigger one is 4 3/4"ODx10"H. I also have an old pair of leather chaps at the shop that I only use to drape over sensetive car parts when I'm welding nearby. Attached image(s) 
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| Aaron Cox |
Mar 21 2006, 05:39 PM
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#32
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Professional Lawn Dart Group: Retired Admin Posts: 24,542 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California |
that describes me to a 'T'.... i have Nomez flip flops for trackdays and for metal casting.... (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| Katmanken |
Mar 21 2006, 08:45 PM
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#33
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
We have used a lot of SLA cores to make complex stainless parts. Coat them in plaster and cast away.
Same process as lost foam- SLA burns out. Muller, ya might want a copy of the 1930's books "Amature Telescope Making" vols 1, 2 and 3. They go into detail on casting aluminum parts in yer back yard using easy to obtain materials. They use a barrel lined with firebrick, charcoal, and a fan blowing into the barrel for the furnace. They cast a bigg ass aluminum fork for a telescope. Ken |
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| DblDog |
Mar 21 2006, 09:29 PM
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#34
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Member Group: Members Posts: 164 Joined: 8-February 05 From: San Rafael, CA Member No.: 3,578 Region Association: Northern California |
...I took an adult ed metal class at the local high school and the instructor had a foundry set-up for casting aluminum...he used to cut up otherwise unreparable wheels...his favorites were from BMW's...made really great castings, mostly small parts for projects he was working on, machined very well...looked great. I never got around to doing any cast projects, but he had a great set-up. Something like this might be a good alternative to building ones own smeltry! Having that much heat around the back yard is scary...
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| Rotary'14 |
Mar 21 2006, 09:45 PM
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#35
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Senior Member Group: Members Posts: 753 Joined: 24-April 05 From: Los Angeles Member No.: 3,977 |
Hey Mike,,
You should make some badges for our grills with some of that awsome molten form 914! (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) -Rob |
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| ThinAir |
Mar 21 2006, 10:25 PM
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#36
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Best friends Group: Members Posts: 2,569 Joined: 4-February 03 From: Flagstaff, AZ Member No.: 231 Region Association: Southwest Region
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(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) |
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| alpha434 |
Mar 22 2006, 12:43 AM
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#37
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My member number is no coincidence. Group: Members Posts: 3,154 Joined: 16-December 05 From: Denver, CO Member No.: 5,280 Region Association: Rocky Mountains |
You shouldn'tve mentioned this online. Now your going to be loaded with so many projects.... Good luck, Mueller.
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| Andyrew |
Mar 22 2006, 01:03 AM
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#38
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Spooling.... Please wait Group: Members Posts: 13,380 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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Mueller is already loaded with projects, I have a couple for him myself, which he has kindly refused because of time...
But he's always into good idea's! lol, Mueller is Project master... Never to finish one. |
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| IronHillRestorations |
Mar 22 2006, 01:17 PM
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#39
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I. I. R. C. Group: Members Posts: 6,833 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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Depending on how long you've got to fire the burner, you may get into problems with your tank freezing. I had this problem doing ceramics, a long time ago.
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| jonwatts |
Mar 22 2006, 02:27 PM
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#40
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141 |
Put it in a warm-water bath? Place it on top of the kiln? (not) (IMG:http://www.914world.com/bbs2/html/emoticons/blowup.gif) |
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