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How to make a Large Cauldron.

701732 Views 155 Replies 66 Participants Last post by  csaitz90
So here is a project inspired (copied from) by SKAustin.

It is essentially a large rope handled bin with the rope removed. I then needed to make a bunch of ribs to create the cauldron shape. Taking the time to make a great template was key!

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I then acquired some heavy duty / thick cardboard and cut it to length, stacked it 4 deep, clamped it down and cut it with a jig saw. The saw had a fine blade on it and worked great. I tried to cut them by hand with scissors, however that was to tedious and compromised the structural integrity of the cardboard (creasing , bending it, etc)

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I then measured the circumference of the bin and it was about 60"....so I spaced the ribs out at 2" and began gluing them in place. I was surprised how sturdy it is beginning to feel!

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30 ribs later and about 1/2 a bag of glue sticks and it is really starting to take form....

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It'll be like going over a balloon so shouldn't be a problem. Looking good so far.

If youre worried about slipage. Take your paper and go light on the mache and just put random little strips here and there. Wait like a half hour or so and then do the rest.
 

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Discussion Starter · #14 ·
Hindsight - I had about 12 ribs cut that I did not use. If I was to do it again, I would have spaced them a bit closer; just for better support and rigidity. Maybe 1.5" or even 1". Once you have a good template, cutting ribs is a snap. I did have some ribs that were of a second quality, but I just shot more hot glue in as if it were caulk and it seemed to work well.
 

· Funeral Crasher
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Looks really great so far, Old Man Bakke! I don't know how well paper mache sticks to duct tape, but I think it would work.

I've also used the stuff called "Rigid Wrap" in the past, and it seems to stick to anything. I used to use it to make copies of skulls by covering the skull in foil before putting on the Rigid Wrap.

http://www.sciplus.com/p/RIGID-WRAP_3361
 

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I began the same exact project before Halloween but tried using plastic scraps from kayaks....
well... just stick with cardboard!
The ribs were extremely sturdy but too heavy for the glue to hold them in real well... it held... but not good enough for the eventual beatings props take as they make their way down the stairs!

You reminded me though that this project was on my "Winter To-do List!"
Looking forward to the finishing touches.
 

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I used paper mache on mine but it didnt handle well while moving. Ended up recovering it with those plaster cast strips you can buy at the craft store. Made it super hard and very durable!
 

· "KAT IN THE HAT"
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This is looking great and you have enough duct tape on there for it to be quite strong. I have done 2 projects using paper mache one using the 50/50 water and white glue and the other using wallpaper paste and neither of them had a problem sticking to the duct tape but I did find using tissue paper for the first coat of mache better as the next coats with the newspaper stuck really great. Plus using the first coat of tissue you can use larger pieces just to get the tape covered before you go to the smaller newspaper mache for the strength. Thanks for the tutorial by the way as I have been racking my brains on how to come up with a large fairly inexpensive cauldron. Oh if you do want more strength to it just wrap what you have done with chicken wire then do your paper mache and you got it made!
 

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Ha scratch that I remember what i did! Cut holes in the bottom in between each rib and spray great stuff foam in. Then cover the outside with strips of the plaster strips.
 

· Shiver me timbers
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So here is a project inspired (copied from) by SKAustin.

It is essentially a large rope handled bin with the rope removed. I then needed to make a bunch of ribs to create the cauldron shape. Taking the time to make a great template was key!
Good job!

That looks like the one I did in 2004.
It's tough. still looks good after 9 years.

http://www.bastardrat.com/2004cauldron.html

 
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