Even with straight pins I sometimes have a trouble pulling the cope straight vertically off the drag without messing up lettering on plaques, air cleaners or...
38290
rmorris@...
rmorris200
Dec 27, 2007 6:22 am
Has anyone tried a combination of lost foam and a traditional wooden pattern to cast a part? I've been pondering on how to make some castings for model...
38291
Normand Cyr
nccyr
Dec 27, 2007 2:18 pm
Can't see your drawing or photo, I keep getting to a site that is not related. Are you sure your links are right? ncc ... [Non-text portions of this message...
38292
Lyle
creepinogie
Dec 27, 2007 3:28 pm
No, but I know it can be done. Folks have used pieces of styrofoam as risors. ... wooden pattern to ... passenger car truck ... by other plates ... will be...
38293
Brian Fairey
bfairey
Dec 27, 2007 3:51 pm
Well? allows for undercuts and a finer finish? Brian Fairey...
38294
k2821
Dec 27, 2007 3:54 pm
Petrobond/Bentone 34 is available at http://www.copperstarways.com Cheers Richard...
38295
Lyle
creepinogie
Dec 28, 2007 1:32 am
$4/lb? Is that right?...
38296
Jeshua Lacock
jeshua_lacock
Dec 28, 2007 2:12 am
... Yes thats what it says or $190 per bag.... Seems kind steep to me... Cheers, Jeshua Lacock, Owner <http://OpenOSX.com> phone: 877.240.1364...
38297
rmorris@...
rmorris200
Dec 28, 2007 2:39 am
I just checked again and it's was OK. You should have got a copy of the Car Builders' Cyclopedia of American Practice from Google Books. Figures 4337 to 4339 ...
38298
Dave
odd_kins
Dec 28, 2007 3:33 am
Just a personal opinion. it's not worth the effort. It looks like your going to need a few of these parts. in this case I would mount the patterns to a board...
38299
Dave
odd_kins
Dec 28, 2007 3:48 am
Dick, I just took a good look at your drawings. It looks like you'll need a core box. That would make things a lot easer in the long run. Dave ... of the Car ...
38300
Dan Brewer
danqualman
Dec 28, 2007 3:55 am
This is the resin that you add sand , oil and methanol to and mull the mixture. Dan in Auburn _____ From: hobbicast@yahoogroups.com...
38301
Clint D
driggars
Dec 28, 2007 4:15 am
You would only need 5-6 pounds to do up a 100 #'s PB sand Clint ... [Non-text portions of this message have been removed]...
38302
Jeshua Lacock
jeshua_lacock
Dec 28, 2007 4:24 am
... 100 pounds of sand is not very much to work with... Hydrophilic Bentonite clay cost me $20 for 50 pounds... Cheers, Jeshua Lacock, Owner ...
38303
rmorris@...
rmorris200
Dec 28, 2007 5:27 am
... box. That would make things a lot easer in the long run. ... Dave, That was one of the options I'd considered. A core would be kind of a pain(in my mind at...
38304
mary long
p9h0i2l62
Dec 28, 2007 5:52 am
that stuff goes for $35.00a bag here. ... From: Jeshua Lacock To: hobbicast@yahoogroups.com Sent: Thursday, December 27, 2007 6:12 PM Subject: Re: [hobbicast]...
38305
Dave
drescher3
Dec 28, 2007 2:55 pm
Hello all, I posted a video of a foundry worker preparing a match plate mold on you tube. Here is the link for it: ...
38306
Stone Tool
owly055
Dec 28, 2007 4:11 pm
There was some discussion of tapered versus straight flask pins...... obviously there is no purpose in having the pins straight their entire length........only...
38307
Greg B
t8s1t1
Dec 28, 2007 4:54 pm
You give me good Ideas Ill have to do somthing like that when I get time before my next pour. I especially like the idea of tapered metal pins. I like the...
38308
Lyle
creepinogie
Dec 28, 2007 7:16 pm
Straight pins the entire length are the way to go I've found. When you are pulling the flask apart, they will ensure a straight pull. Especially on patterns...
38309
cripete
Dec 28, 2007 8:22 pm
Dick: With all due respect, getting plans for the pedestal/ journals makes more sense to me. With your reference, especially if you enclose printed images of...
38310
Dave
odd_kins
Dec 29, 2007 4:25 am
I use straight pins almost as long as the cope is tall. I also use a different size pin for the opposite end of the flask, this prevents assembling the flasks...
38311
Jeff Anderson
jander14indoor
Dec 29, 2007 2:26 pm
Location and sources please? And are you quoting Bentone or bentonite? Thanks, Jeff Anderson Livonia, MI ... From: mary long To: hobbicast@yahoogroups.com ...
38312
Lyle
creepinogie
Dec 29, 2007 3:35 pm
I get mine from marshall firebrick supply in Minnneapolis and it's nowhere near $4/lb. They have a website and they ship. But any major foundry suppler is...
38313
Dave
dcorb_pc2
Dec 29, 2007 4:19 pm
Someday soon I what to start metal casting. I always wondered where I could get supplies locally then I see your post. I am in a St. Paul suburb, do you have...
38314
Lyle
creepinogie
Dec 29, 2007 4:29 pm
Dave, You are in way better shape than I because I have to drive 250 miles to these places. You can get ingots at Kronick Inc. on hennepin Ave. Crucibles and P...
38315
Lyle
creepinogie
Dec 29, 2007 4:36 pm
here's a link to marshall firebrick supply: http://www.ssfbs.com/index.htm They bought out smith sharp or vice versa not too long ago. They have crucibles,...
38316
Dave
dcorb_pc2
Dec 29, 2007 10:51 pm
Thank you for the information! I know the drive you had to make as I have a cabin in the Fergus Falls area, long drive on 94. And here I thought this was a...
38317
Lyle
creepinogie
Dec 30, 2007 12:34 am
Dave, I think there's a "Yellow pages" in St. paul. Lots of foundries down there and therfore suppliers. I'll invite you to a casting party at my place this...
38318
Dave
dcorb_pc2
Dec 30, 2007 12:48 am
Cool, might take you up on the casting party. I am a total beginner, except for shop class in HS but that was way too many years ago. Dave ... foundries ... ...
