Original 1928/9 quail

[mrtexas]

When is the last time you saw one of these?

[Bob Johnson]

When have you seen one of these?

[Brad in Germany]

Here's a NOS '28-'29 Jarvis:



Brad in Maryland

[Phil Brown]

Both very nice

[Planojc]

Other than Patina, what are the differences in an original and a repo?

[Oldbluoval]

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Planjc….Other than Patina, what are the differences in an original and a repo?”

A lot….details much less defined on repo. Eyes, feet, wings all more faint on repop.

[Gary WA]

28-29 Stanco- sent off to get finished years ago! They started it but said it was to dirty to do, now its in copper on shelf and they broke the bird off the base. Took about 6 months to get it back. I bet no other copper ones HA!

[Oldbluoval]

I have a brass 30-31 Stanco unrestored
I’ll post a pic over the weekend

[jw hash]

here is a NOS 30-31 Jarvis. it still has the original asbestos gasket on it.

[jw hash]

Bill, the details of the originals are a lot better than the reproductions.

[Gary WA]

Originally Posted by Bob Johnson

When have you seen one of these?

I have now!

[Bob Johnson]

Gary,
Is it in good enough shape to make a mold?
Bob

[spdway1]

Are any 28/29 originals for $ale? Pretty PLEASE!

[Gary WA]

Originally Posted by Bob Johnson

Gary,
Is it in good enough shape to make a mold?
Bob

If you can find someone to cast one it would be a good project to try.

[8EL]

The use of the investment casting process would faithfully reproduce whatever detail the original comprised.

[Karl Wescott]

Originally Posted by 8EL

The use of the investment casting process would faithfully reproduce whatever detail the original comprised.

A perhaps more accurate statement would be "The use of the investment casting process would faithfully reproduce whatever detail was faithfully duplicated in the wax* model".


* Wax is the traditional medium for investment casting, when the ceramic shell is heated and fired most melts out for reclaiming and the remainder burns out with little residue. Some other plastics, whether machined, molded, or 3D printed will also burn out well (but are seldom reclaimed).


Regardless, OTTOMH, the costs with investment casting would result in a part with a 350.00-750.00 retail price. Average Joe Restorer is going to go with the 75.00-150.00 "inferior" repro.

[Terry Burtz, Calif]

Originally Posted by spdway1

Are any 28/29 originals for $ale? Pretty PLEASE!

I have a NOS '28/'29 Stanco that is for sale. It's been a desk ornament for over 50 years.

Please send a private message with your email and I'll send pictures.

[8EL]

Originally Posted by Karl Wescott

A perhaps more accurate statement would be "The use of the investment casting process would faithfully reproduce whatever detail was faithfully duplicated in the wax* model".


* Wax is the traditional medium for investment casting, when the ceramic shell is heated and fired most melts out for reclaiming and the remainder burns out with little residue. Some other plastics, whether machined, molded, or 3D printed will also burn out well (but are seldom reclaimed).


Regardless, OTTOMH, the costs with investment casting would result in a part with a 350.00-750.00 retail price. Average Joe Restorer is going to go with the 75.00-150.00 "inferior" repro.

Wax ( I use Freeman Flakes Carvable Purple WAX-300.80) is of course part of the investment casting process I described. I have experienced no loss of detail during burnout. I like to alloy German brass (60-40 copper/zinc) Hence the claim can be made that whatever is in the original part will be duplicated in the reproduction. I have reproduced parts in this fashion for years and have noted that light stampings such as on a dime come through with no loss of detail. I have never attempted to use any 3D generated patterns.

You need not go the expense of a ceramic mold either. I use G-400 aluminum casting investment produced by Kerr Labs (www.kerlab.com) which has a metal casting temperature rating of 2000 DegF which is suitable for brass,bronze, and like copper alloys. No problems encountered with it and breakout is pleasantly easy. I purchased a 100 pound tub that lasted for years. This product is specifically marketed to the dental industry for use in the making of dentures to give some indication to the quality of part reproduction. It is mixed with water and carefully poured into the molding box, then vacuum chambered to remove all entrained air, much like silicone mold making.

Anyway that tub was about $150.00, I suppose it would be higher now, and they may have substituted this product line for another, but dentist still make dentures. That said the new product if that be the case it probably better than the old.

Never want to count the "average Joe" out of anything. Using this process would give him the first class part he is looking for for a couple of dollars, albeit much time and effort. I suppose it come down to how hard he wants the part.....

[ronn]

very informative thread.......

so who is going to stamp out a couple hundred and sell them for under 199. each?


lol