Jump to content


perkolator

Member Since 08 Feb 2012
Offline Last Active Yesterday, 12:32 PM
-----

Topics I've Started

Best Heavy-Duty Banding Wheel Currently Available?

11 September 2014 - 06:12 PM

Was wondering if anyone knows which is going to be the best and longest-lasting banding wheel available right now?

 

I'm looking for 10-12" wheel head, with maybe 4" rise.  They need to be heavy-duty and hold up to undergraduate abuse with heavy sculpture on them (maybe 50-100#+)

So far, the Shimpo units seem to be the better-built ones on the market, but maybe there's others?

 

 

If there's nothing on the market that fits these requirements - anyone made a banding wheel using the rear wheel hub/bearing assembly from a FWD vehicle? I think I even came across it on the net many years back (that's where I got the idea i guess), just haven't found the right hub assembly that's flat on both sides for mounting to steel plate.


Help With Updraft Kiln - Burner Setup

02 April 2014 - 02:15 PM

I am trying to help a friend get a gas kiln up and running.  I believe he said the kiln had been sitting inside a barn for many years, and was brand new, never fired.  He has had it for several years and never set it up because there isn't a complete burner system and this needs to get resolved.  Been sitting long enough that the rodents have taken a liking to the fiber interior.  I've been asked to give him some direction with this kiln, but I've never had to set up a kiln before, always just dealt with what was already in place - so I'M looking for help on this one :)

 

The kiln is an updraft but we don't know who made it - there are no nameplates or identifiers of any sort on the chassis to be found.  The kiln has fiber door and ceiling, the other 3 walls and floor are soft-brick.  Inside volume is roughly 27 cu. ft. Only ports into chamber beside burner ports are 2 spy ports on side of kiln, kinda weird placement IMO. Current burner system consists of 7 naturally aspirated burners that come through the center of the floor, so i'm assuming it uses hearth setup and no bagwall.  The burners are on what seems like a homemade manifold made of square tube that goes to some ball valves.  Where I'm stuck is that there are no pilots, valves, gauges, or anything else to the burner system.

 

Being unfamiliar with this type of updraft kiln, I'd have assumed there would be some feature in the burner system to allow pilot/candling time before putting on all 7 burners - but I can't figure it out.  The square tube manifold for the burners I think is welded into place.  I don't see any evidence of any external parts like pilots and ignition being connected to the burners like you'd see on other burner systems.  I don't even see much room in the ports to even fit a pilot in the orifice next to the burners if I were to somehow adapt some.  We do have a few burner parts left over from another kiln that went out when this one came in.  Know we're going to have to invest a little in some new valves, gauges, etc etc - hopefully it won't break the bank.  Fuel will be natural gas.

 

 

 

Hoping someone will have input as to the maker of this kiln.  Maybe some input as to the burner system attempted to be installed on this kiln, and how to fire it.  Lastly, looking for input on where to proceed with setting up a "proper" burner system on this kiln, so we can get some clay fired this Summer!

 

Pics:

84962BCC-9A3A-4637-AB33-1033D526CFBF_zps

639CFA90-CF64-4A1A-9E7B-9D6D59964187_zps

 

Burner manifold:

E0F5DF49-73BF-419B-9E79-AE72FA176035_zps

1AC4B8BF-FB28-410C-A1C3-90BDA45A9524_zps

 

Burner ports and size:

FA7500B2-290B-4C72-BD77-3605858B0077_zps

 

Extra parts from old kiln:

 

 

 

 


Clay Body For Large-Scale Project

11 February 2014 - 08:33 PM

I'm helping figure out the logistics of a proposed large-scale ceramics project.  One of the most important things we need to figure out is the clay body, which is where I'm hoping for input.

 

Was planning on simply making our standard studio clay body that we use for our large-scale sculptures.  Usually items get up around 1" thick or slightly more, occasionally students get into the 2-3" range (like at bottom of large piece) and we usually once-fire to ^04 or to ^6 without any issues, or at least minimal problems that are usually due to construction methods.

 

Sculpture body:

6 Fire Clay (Lincoln)

2 Kaolin (Edwin)

1 Ball (OM#4)

1 Grog (20m Mulcoa)

 

The proposed project will be a very large, very thick slab-based piece, outdoor demonstration with public interaction.  Original thoughts were to NOT fire this piece when finished due to size and thickness, but personally I'd like see if there is anything we can do to the clay body to make it possible to fire because I think it's going to turn out awesome and it would be a shame to put all this effort into making several tons of material, getting public interaction, and then not fire it and slake it all down  :(

 

Immediate thoughts went to additions of either perlite or cellulose insulation to make the body more porous, in order to fire these solid pieces.  Costs need to be kept to a minimum, so adding crushed IFB is not a possible solution.  I know perlite will work very well for what we want to do, but question whether it will be cost effective when making 2-3 tons of clay.  Paper clay made with cellulose insulation I have no idea - I tried it on a small scale, thin items, works great - but don't know how it would work on large scale like this with thickness getting into the 4-6" range.

 

Anyone?