Author Topic: Group buy-group pour, bronze 24 PDR Coehorn golf ball mortar (Read 28230 times)

BlueMt · « **Reply #240 on:** December 16, 2011, 03:49:22 AM »

I think I would like one of these also. Has a price been established?

RocklockI · « **Reply #241 on:** December 16, 2011, 05:43:46 AM »

Not sure about numbering them . The first one is almost ready for the caster !

Gary

Cannoneer · « **Reply #242 on:** December 17, 2011, 04:31:29 AM »

Gary,

DD's coehorn has U.S. marked on it; is this a planned feature for all of them?

RocklockI · « **Reply #243 on:** December 17, 2011, 06:15:46 AM »

Yes they will be marked US
This ones name is "Tater 24 lber"

At this point these photos all look about the same !

These two shots show how closley fitted the trunions and rim bases are .

Mike had some very good suggestions in the fittings of these parts .

Gary

flagman1776 · « **Reply #244 on:** December 17, 2011, 07:21:48 AM »

The cast can not be better than the wax... and that is darn nice fitment. I am impressed.

Mike H. · « **Reply #245 on:** December 17, 2011, 09:10:59 AM »

Yes, that is ridiculously nice work!

Warlock1 · « **Reply #246 on:** December 17, 2011, 02:00:00 PM »

Interested, depends on price.

Double D · « **Reply #247 on:** December 17, 2011, 02:10:04 PM »

If you guys want to get in on this group buy you must contact Gary off board by PM or email. Gary is the honcho for this.

Spuddy · « **Reply #248 on:** December 17, 2011, 03:50:59 PM »

Quote from: RocklockI on December 17, 2011, 06:15:46 AM

Yes they will be marked US
This ones name is "Tater 24 lber"
At this point these photos all look about the same !

These two shots show how closley fitted the trunions and rim bases are .

Mike had some very good suggestions in the fittings of these parts .

Gary

The name has a nice ring to it.

Cat Whisperer · « **Reply #249 on:** December 18, 2011, 01:38:18 AM »

I've always wanted a potatoe gun.

flagman1776 · « **Reply #250 on:** December 18, 2011, 05:02:27 AM »

I am wondering if these will be poured in batches at the foundry or if they'll be casting one at a time with their other work?

seacoastartillery · « **Reply #251 on:** December 20, 2011, 01:50:04 PM »

I'm posting this pic that I took today to show everyone that Gary is still working on them and is obviously going for a batch production of four or five to be delivered to the bronze foundry when these waxes are complete. They are looking good and the special tooling is working correctly now that several improvements have been made.

Tracy

RocklockI · « **Reply #252 on:** December 20, 2011, 02:52:57 PM »

Thank you Tracy , Yes I am doing this in batches , I'm going to order more wax .

We will see how these first castings go ,fingers crossed ....... The spud 24 went to the foundry on Mon. ,in a month is it will be ready ....!

Gary

phsarge · « **Reply #253 on:** December 20, 2011, 04:19:35 PM »

So can I get added to the list on this one I really think they look good and would definatly want one.
PHsarge

Double D · « **Reply #254 on:** December 20, 2011, 05:51:54 PM »

Quote from: phsarge on December 20, 2011, 04:19:35 PM

So can I get added to the list on this one I really think they look good and would definatly want one.
PHsarge

Jeff drop Gary-Rocklock a PM and let him know.

DaveSB · « **Reply #255 on:** December 21, 2011, 04:15:51 AM »

I'm so excited, I can't wait to have on in my hand... and shoot it

Gary, thanks to you and anyone else helping your efforts of making this group buy happen.

Cannoneer · « **Reply #256 on:** December 21, 2011, 07:43:25 AM »

Gary,

My hat's off to both of you for figuring out a way to shape that piece accurately enough to form that close a fit with the profile of the barrel and trunnion. That's really going to aid in increasing the ease and uniformity of production.

"Mike had some very good suggestions in the fittings of these parts ."

Double D · « **Reply #257 on:** December 21, 2011, 01:11:17 PM »

Quote from: Cannoneer on December 21, 2011, 07:43:25 AM

Gary,

My hat's off to both of you for figuring out a way to shape that piece accurately enough to form that close a fit with the profile of the barrel and trunnion. That's really going to aid in increasing the ease and uniformity of production.

"Mike had some very good suggestions in the fittings of these parts ."

Agreed John!! I don't know how they did it--magic, sorcery or photoshop, but what ever they did, they did it good. I was able to do it in Autocad.

I'd like to know how they did it, and if the technique could be applied to steel for a turned and machined tube. Please Gary share the magic!

flagman1776 · « **Reply #258 on:** December 21, 2011, 01:35:15 PM »

I sent my bronze shaft mortar project out to a skilled metal worker. He came up with a much better plan than my make-do plan. He turned the breech end of the tube to a sphere & used the same size ball end mill to shape the seat in the trunion. I imagine you could do the same with wax.
I'll have more when I get the project back.

Double D · « **Reply #259 on:** December 21, 2011, 01:59:06 PM »

Quote from: flagman1776 on December 21, 2011, 01:35:15 PM

I sent my bronze shaft mortar project out to a skilled metal worker. He came up with a much better plan than my make-do plan. He turned the breech end of the tube to a sphere & used the same size ball end mill to shape the seat in the trunion. I imagine you could do the same with wax.
I'll have more when I get the project back.

Sure that's how its done for the trunnion, but how do you do the two fillets?.

I think I might see how its done. The fillet is radius for the trunnion. The barrel is inlet to take the fillet.

Tiki3 · « **Reply #260 on:** December 26, 2011, 06:29:36 AM »

Would like to be part of this "buy", however don't know how to contact Gary. By the way, unable to Email Austin @ Kscannos.com, New Email??
Thanx,
Tiki3

muskeg stomper · « **Reply #261 on:** December 26, 2011, 07:30:04 AM »

+ 1 finished bore

flagman1776 · « **Reply #262 on:** December 26, 2011, 07:30:42 AM »

PM to RocklockI = Gary

GGaskill · « **Reply #263 on:** December 26, 2011, 11:34:48 AM »

... how do you do the two fillets?

I assume you mean the rimbases? There are three different curved surfaces on the rimbase. The easiest one mates with the trunnion, a plain cylinder. The other two mate with the breech; the upper portion is part of a cone and the lower portion is part of a sphere. The easiest way to deal with it is to machine a flat on the barrel and the curve for the trunnnion, attach it somehow (welding, epoxy, etc.), and then fill in the void between the rimbase and the barrel. Apply paint as necessary.

RocklockI · « **Reply #264 on:** January 01, 2012, 10:36:51 AM »

I made some progress over the last few days .
Here is a batch of 4 ,with more wax 'on the way'

More tomorrow

Gary

Double D · « **Reply #265 on:** January 05, 2012, 11:44:04 AM »

I was going to hold off on announcing this until everything is done. I decide to do it now, before I forget.

I have talked Dom into building handles in the Federal pattern for a base for this project.

Dom has told me these handles will be $35 a set of 4, plus postage of course. They will attach with 1/4" bolts.

GGaskill · « **Reply #266 on:** January 05, 2012, 12:00:39 PM »

Having made handles of that style for a half scale Coehorn, that sounds like a bargain price.

Zulu · « **Reply #267 on:** January 05, 2012, 12:30:09 PM »

Quote from: Double D on January 05, 2012, 11:44:04 AM

I was going to hold off on announcing this until everything is done. I decide to do it now, before I forget.

I have talked Dom into building handles in the Federal pattern for a base for this project.

Dom has told me these handles will be $35 a set of 4, plus postage of course. They will attach with 1/4" bolts.

DD,
A 1/4" bolt won't go through a 5/32" hole.

$:-\$ $:-\$ $:-\$ $:-\$
Zulu

little seacoast · « **Reply #268 on:** January 05, 2012, 02:22:26 PM »

What 5/32nds hole?

seacoastartillery · « **Reply #269 on:** January 05, 2012, 04:48:35 PM »

Zulu, take another look at the drawing. It specifies a 5/16"(.312") hole Not a 5/32"(.156"). Therein lies your problem.

Tracy

Poll

I would buy...

Author Topic: Group buy-group pour, bronze 24 PDR Coehorn golf ball mortar (Read 28230 times)