Author Topic: new bronze (Read 50051 times)

Double D · « **Reply #600 on:** September 02, 2010, 08:24:07 AM »

This is out of left field but could a materiel like cerrobend be used instead of wax to make moulds for casting bronze? Cost aside.

dan610324 · « **Reply #601 on:** September 02, 2010, 11:16:38 AM »

sorry dd , didnt think about that when you asked me
I just thought about mixing it in the bronze
but to use instead of wax , well that might be possible

but it also depend on how the mold looks
you got to be sure that all of it easily can flow out when you heat the investment mold
if you have undercuts and so it will be a small amount left in the mold
thats a big no no

Double D · « **Reply #602 on:** September 02, 2010, 01:09:00 PM »

Since the stuff melts at 156 degrees F/69 C it should be pretty easy to get it all out.

dan610324 · « **Reply #603 on:** September 02, 2010, 01:48:16 PM »

its not always true , the temp is no problem here .
but the shape of the mold is
if you got a cavity inside the mold that is lower than the connection to the main barrel , as a dolphin for example .
then you get some residues left there , if its wax it will evaporate and burn so thats no problem .
but with a metal used instead of wax it will stay there
it got almost the same melting temp as wax , but wax got the advantage to evaporate and it starts burning by itself at approximately 250-260 degrees celsius, depending a little on what type of wax it is .

so everything depend on the shape of the mold if its useable or not
but the wax aint that expensive , and personally I recover most of it
all chps made when turning can also be remelted

I got several hundred pounds of candle stumps so I have enough for a lifetime or two

and more comming a couple of times each year
I got a friend working as a janitor at our church , so he brings me the stumps every time they change them
its just to melt them and pick the wicks away and its ready to use

if you bend a very thin piece of sheetmetal to a tube and hold it togeter with tape you can get whatever diameter you need , or if you got a silicone mold its no problem at all .

got a lot of boxes like this all over the place

Victor3 · « **Reply #604 on:** September 02, 2010, 07:01:42 PM »

Quote from: dan610324 on September 01, 2010, 11:57:36 PM

but if you throw away money that easy you will be a poor man

I'm already poor, so a little less money won't make much difference.

dan610324 · « **Reply #605 on:** September 03, 2010, 02:11:13 AM »

same as me then

Spuddy · « **Reply #606 on:** September 10, 2010, 01:59:54 PM »

The 1838 carriage is starting to take shape.

RocklockI · « **Reply #607 on:** September 10, 2010, 05:03:26 PM »

dan610324 · « **Reply #608 on:** September 10, 2010, 11:08:34 PM »

is it water cut steel or what is it ??

Spuddy · « **Reply #609 on:** September 11, 2010, 12:53:02 AM »

Quote from: dan610324 on September 10, 2010, 11:08:34 PM

is it water cut steel or what is it ??

You got it Dan, water cut steel. I am having this built for me as I do not have the tools or abilities necessary to accomplish this task.

Double D · « **Reply #610 on:** September 11, 2010, 04:30:46 AM »

Water cut steel?! Should dampen recoil.

dan610324 · « **Reply #611 on:** September 11, 2010, 04:45:50 AM »

it sure will be a heavy carriage

RocklockI · « **Reply #612 on:** September 20, 2010, 10:43:40 AM »

I made a little more progress on the carriage

Here it is with brand new 16" wheels ,I ordered them from Custom Wagon Wheels . Normaly it will have the bronze GB howie mounted on it .

Believe it or not these wheels have a dish to them , staggered spoked too ,very nice .

Gary

Zulu · « **Reply #613 on:** September 20, 2010, 11:01:57 AM »

Gary,
What's the purpose of the staggered spokes?
Zulu

RocklockI · « **Reply #614 on:** September 20, 2010, 11:06:25 AM »

I almost forgot this one !

This one was turned from a candle , it will be the last one as I now have some really nice machinable wax !

The wax was very crumbly out by then muzzle . I think it will polish up nice though .

It's an underlug howie and will have a chamber and a 1" bore .

Gary

carronader · « **Reply #615 on:** September 20, 2010, 11:08:50 AM »

where's the close up of them thar store boughts ? sneaky rodent.

carronader · « **Reply #616 on:** September 20, 2010, 11:18:30 AM »

now you're talking Muskrat.........love it ! ........getting balance on the elevation system is gonna be a beech for the idiot who volunteered to make the carriage for it . Some dumb Scotsman was it ?

RocklockI · « **Reply #617 on:** September 21, 2010, 12:08:20 PM »

I brought the carriage home today , so here is a couple of pics with the howie on it .

I figured out the elevation gear today ! ..... I was hoping I would

no it is not that block of wood .

Gary

Zulu · « **Reply #618 on:** September 21, 2010, 12:24:21 PM »

Quote from: Zulu on September 20, 2010, 11:01:57 AM

Gary,
What's the purpose of the staggered spokes?
Zulu

RocklockI · « **Reply #619 on:** September 21, 2010, 12:27:25 PM »

I dont know ,they where advertised with the stagger but not with dished feature .

Gary

Zulu · « **Reply #620 on:** September 21, 2010, 12:44:04 PM »

I've never seen that before.

Max Caliber, are you out there?
Do you have any ideas on this?
Zulu

GGaskill · « **Reply #621 on:** September 21, 2010, 01:05:35 PM »

It looks like the nave ends of the spokes are not in line but alternate left and right of center a little bit, kind of like the way a bicycle wheel's spokes are arranged only not so much. In theory it would give the wheel resistance to side thrust although the small offset probably wouldn't help much if the gun was being towed behind a six horse team.

KABAR2 · « **Reply #622 on:** September 21, 2010, 02:04:52 PM »

So Gary are you going to invest in one of those miniature ponies and train it to tow your
howitzer?

Max Caliber · « **Reply #623 on:** September 21, 2010, 02:52:47 PM »

Quote from: Zulu on September 21, 2010, 12:44:04 PM

I've never seen that before.

Max Caliber, are you out there?
Do you have any ideas on this?
Zulu

Staggered spokes, sometimes called off and on spokes, were fairly common in heavy duty wheels towards the end of the wooden wheel era. They added a bit more strength to the wheel. They were used a lot in artillery carriages, especially by the British. They are easily overlooked in pictures but you will find them pictured in most artillery books.

Max

Cannoneer · « **Reply #624 on:** September 21, 2010, 03:10:52 PM »

Civil War era artillery sling cart used for transporting large barrels.

Zulu · « **Reply #625 on:** September 21, 2010, 04:44:13 PM »

Quote from: Boom J on September 21, 2010, 03:10:52 PM

Civil War era artillery sling cart used for transporting large barrels.

Boom J,
Nice picture!!!
That is an incredible wheel!!

Double spokes!
I want to make one!
Zulu

RocklockI · « **Reply #626 on:** September 21, 2010, 05:24:13 PM »

They got some serious brakeage on that beast .

Ex 49'er · « **Reply #627 on:** September 21, 2010, 09:07:48 PM »

Quote from: KABAR2 on September 21, 2010, 02:04:52 PM

So Gary are you going to invest in one of those miniature ponies and train it to tow your
howitzer?

Use a Smart Car or a riding mower for towing.

RocklockI · « **Reply #628 on:** September 21, 2010, 09:41:35 PM »

Quote from: Boom J on September 21, 2010, 03:10:52 PM

Civil War era artillery sling cart used for transporting large barrels.

"Private !" YOU Stand gaurd here and dont let anyone steal this thing !

p51 · « **Reply #629 on:** September 23, 2010, 05:18:49 PM »

Quote from: Boom J on September 21, 2010, 03:10:52 PM

Civil War era artillery sling cart used for transporting large barrels.

Similar rigs were also commonly used for heavy logging but that’s the first set I’ve ever seen that had staggered spokes. I couldn’t find a reference to the one in this photo in the Union Ordnance Manual, and I wonder if this might be a logging skid (called “Big Wheels” in logging speak, for obvious reasons). It was pretty common for them to be that tall, sometimes more than ten feet high.