Another Kiwi

Discussion in 'New member introductions' started by Guster, Mar 13, 2019.

  1. Guster

    Guster Copper

    The big prize for the day is a china painters kiln I picked up this morning to help with lost-wax casting and a few other things.
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    Dial goes up to 800C even though the manual states 850C and rated at 2kW which makes it perfect for running on a 10A supply. I think it would work great with a replacement PID controller. Might even spring for a multi step programmable one.
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    Looks like nichrome element coils but for the $300 I bought it for I’m happy to spend the rest to upgrade it to kanthal.
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  2. Jason

    Jason Silver Banner Member

  3. Guster

    Guster Copper

    Inside measurements are 300mm (D) x 300mm (W) x 280mm (H) which gives you room for a decent flask over a drip tray. It is a bit more peasoup green but not a bad colour compared to some out there.

    I have a basic PID and might just fit that as is. It is nothing fancy as you take what you get in NZ unless you want to double the price with the added cost of shipping even though the exchange rate is quite favourable right now. Alternative is to check if there is a supplier for that in Australia.
     
  4. Jason

    Jason Silver Banner Member

    That sounds like the size of my current kiln. Great for jewelry and small glass work. But it would be way too small for my lost wax bronze work. Burning out large amounts of wax STINKS to high hell and will turn a kiln black in a heartbeat. Not to mention the HORRIBLE SMOKE! I'm using a junk pottery kiln and I stuck it on wheels. When it comes to burnout time, I wheel it over by the garage door, open it up and stick a fan blowing that wretched stuff outside.

    My little kiln is dogpoop brown. Same size as yours.
    20190318_002256_1552887216448.jpeg

    Here is my catpizz kiln. Works great... Cost $25bucks!:p It doesnt smell like catpizz anymore.

    kiln.jpg
     
    Guster likes this.
  5. Guster

    Guster Copper

    That little brown one is neat too. I am hoping I have nowhere near as much wax in mine to deal with as some of your patterns. Really just for those small high detail items. I am conscious of the smoke and what soot can do to the heat coils. My kiln will go on a stand at some point. Right now it is sitting under the house till I have room in the shed to deal with it. A few other projects to move along first.

    ...

    Talking about projects - another rainy day and another project finished. This is what I've quietly been working on making parts for after I found a sturdy piece of pipe for it. I had the little 1/4hp motor, bearing and steel already. I present to you what Andy calls a sand fluffer. Based around the one on the Oldfoundryman YouTube channel. Hardest part was making a flexible shaft coupler until I found a scrap of flexible urethane to make a 'spider' with. Couplers this size can be quite expensive. The couplers are just flanges with 2 steel pins mating in the urethane disk.
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    All assembled with a nice stainless chute. I ran out of steel flat bar to make a stirrup to hang it from the top end. For extra points I found some small rubber gaiter to put over the coupling to keep sand out of it.
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    As always, a picture of the bottom business end. Definitely don't want to stick your fingers anywhere near the bottom. Always good general wisdom.
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    oldironfarmer likes this.
  6. oldironfarmer

    oldironfarmer Silver Banner Member

    Pretty cool! You do nice fabrication work.

    Do you have that bottom sealed bearing shielded against fines packing against it? I bet all these parts will wear a lot faster than you'd think. I've been wanting to build one of these but couldn't understand from Martin's video until I watched with sound. duh. You may want a funnel extension for a bigger target when you're in full commercial production.
     
  7. Guster

    Guster Copper

    Thanks Andy. Not the prettiest contraption I've ever built but without many working examples I didn't want to trow too much money and time at it. The only steel I bought was the large pipe offcut. Most of my friends thought I'm having a bad go at making a jet boat drive. o_O

    The spoke holder on the axle is the same size as the bearing cup as you can see in the last photo. It has a small lip that overlaps the edge of the bearing holder so the bearing is mostly concealed. Not enough but it makes a difference. Was planning to add an additional small surround over the outside but this was the first assembly to make sure it runs OK.

    Good thing there won't be too much 'production' happening. But wear was the main reason for leaving the mill scale on and forgo any painting.
     
    Last edited: May 18, 2019
  8. oldironfarmer

    oldironfarmer Silver Banner Member

    Your pump impeller on your jet boat drive needs some work. All it's going to do is stir water at this point.
     
  9. Guster

    Guster Copper

    Though seems like I solved the problem of getting bogged down in the sand. :D
     
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