Search found 280 matches

by DavidF
Wed Jun 04, 2014 8:09 am
Forum: Casting & Foundry Work
Topic: Crucible Problems
Replies: 29
Views: 18273

Re: Crusible Problems

Does this work? http://youtu.be/CbLBiCdgRi4 Im not the most experienced with iron, but I have figured out how to go about melting it and having a good machinable grey iron. I had tried a couple of times to melt iron (without success) but then one day after a bronze pour I said Im going for it!! I wa...
by DavidF
Tue Jun 03, 2014 11:00 pm
Forum: Casting & Foundry Work
Topic: Crucible Problems
Replies: 29
Views: 18273

Re: Crusible Problems

crucible furnaces are fine for iron casting. Clay graphite crucibles are fine for iron melts. Silicon carbide is just more durable than the clay graphite. Iron casting has been around a long time, much longer than alot of this new high tech stuff. I don't agree with your assessment that crucible fu...
by DavidF
Tue Jun 03, 2014 8:21 pm
Forum: Live Steam
Topic: LOST WAX CASTING
Replies: 2
Views: 1248

Re: LOST WAX CASTING

Looking forward to seeing the finished castings.... :lol:
by DavidF
Tue Jun 03, 2014 8:19 pm
Forum: Live Steam
Topic: MAKING A CYLINDER PATTERN PT3
Replies: 8
Views: 1536

Re: MAKING A CYLINDER PATTERN PT3

Holy shiney molten metal bat man..... :D
by DavidF
Tue Jun 03, 2014 7:03 pm
Forum: Casting & Foundry Work
Topic: Crucible Problems
Replies: 29
Views: 18273

Re: Crusible Problems

crucible furnaces are fine for iron casting. Clay graphite crucibles are fine for iron melts. Silicon carbide is just more durable than the clay graphite.
Iron casting has been around a long time, much longer than alot of this new high tech stuff.
by DavidF
Tue Jun 03, 2014 6:18 pm
Forum: General Discussion
Topic: Can Fix-It Shops Turn a Profit in 2014?
Replies: 28
Views: 6833

Re: Can Fix-It Shops Turn a Profit in 2014?

Taxes, health care, overhead....The three killers of small business. Chances are that 75% of everything you bill will go into these 3 things.
Bill accordingly.....thats all I have to say....
by DavidF
Sun Jun 01, 2014 9:31 pm
Forum: Riding Scale Railroading
Topic: aging a flat car deck
Replies: 13
Views: 5348

Re: aging a flat car deck

Your welcome. I have only use it a couple of times but it did give the aged look I wanted. I just used off the shelf ammonia from the local drug store, nothing fancy... try a test piece like you were planning to see if it gives the desired results. Then leave it in there for a long time and watch wh...
by DavidF
Sun Jun 01, 2014 8:21 pm
Forum: Riding Scale Railroading
Topic: aging a flat car deck
Replies: 13
Views: 5348

Re: aging a flat car deck

Put the wood in a bag, then add a swatch soaked in ammonia in it and let it sit a few hours....presto aged oak.
the process is called ammonia fuming if you would like to google it :)
by DavidF
Sun Jun 01, 2014 2:28 pm
Forum: General Discussion
Topic: Looking for Knobs...Help!
Replies: 14
Views: 7727

Re: Looking for Knobs...Help!

John, If you made a mold that you could use to cast about 10 at a time then the resin casting would go very quick.there are tints to color the resin any color you would like. Some of the resins are very very tough. I would suggest that they are cast under vacuum though. 3D printing is a possibilitie...
by DavidF
Sun Jun 01, 2014 9:53 am
Forum: General Discussion
Topic: Looking for Knobs...Help!
Replies: 14
Views: 7727

Re: Looking for Knobs...Help!

why not take a mold off of a few of them and then resin cast some new ones? http://www.smooth-on.com/
by DavidF
Sat May 31, 2014 4:28 pm
Forum: Casting & Foundry Work
Topic: Crucible Problems
Replies: 29
Views: 18273

Re: Crusible Problems

i get crucibles from here..http://www.lmine.com/mm5/merchant.mvc? thier clay graphite have been holding up well for iron melts...
by DavidF
Sat May 31, 2014 7:00 am
Forum: Live Steam
Topic: Water-jet cut brake shoes - reasonable cost?
Replies: 23
Views: 8685

Re: Water-jet cut brake shoes - reasonable cost?

Harold, I have 2 furnaces, one is propane fueled and melts 10lbs iron the other is diesel fueld and melts about 65 lbs. I have been doing alot of lost pla casting lately, thats where you directly investment cast the 3d printed part. I am interested in casting ductile and trying to locate small quant...