How to make a sprig mold

How to make a plaster sprig mold is a step by step DIY tutorial on the proper steps to create a plaster mold.
Finding Your Throwing Bliss with Andy Ruble is a multi-part web series designed to help beginning through advanced ceramic students improve their hand building and wheel throwing techniques.
Find more at andyruble.com

[@gaspazha7045]

Great video. Thanks for the instructions.

[@Azuredblu]

Thank you for this tutorial🙏

[@williamdelaney5416]

Love the clarity of your video and the details you share.

[@andyruble633]

Thanks for watching William!

[@verar7861]

Thank you

[@carolparkes6031]

I followed your sprig method with great success thank you. BUT I'm struggling with applying them without them 'lifting'. Have you done a video on applying them please? Many thanks

[@andyruble633]

Sorry for the slow response! I haven't made a video on this, but it is best practice to make sure both the object and the sprig are basically the same leather hard consistency. Apply slip to both sides and firmly work the edges down with your fingers or the tool of your choice. Drying the piece slowly will also help a lot! I hope this helps...
-Andy

[@jasm6094]

Great tutorial, many thanks. If I may ask a question as to the grainy texture on the pot - how did you do that?

[@andyruble633]

Hi there! This little bottle was wood fired and the texture was created when the wood ash didn't melt all of the way.

[@jasm6094]

@@andyruble633 Got it, thanks for the reply. I hoped that it was a kind of glaze. Looks great.

[@ombrettalomanto8331]

Hallo, good morning, What kind of plaster?

[@andyruble633]

#1 pottery plaster is best. 👍

[@monicawaldman2433]

Don't wash anything with plaster in your sink!

[@magnuswootton7368]

I dont know how to get plaster to dry properly, I tried getting calcium sulphate but it doesnt set hard at all!!!!

[@andyruble633]

What a bummer! I really only recommend #1 pottery plaster which is the industry standard for slip casting and pottery molds. If you have tried this type of plaster and it didn't work, your mixing ratios must be adjusted or the plaster itself is old and no longer usable. Good luck!
-Andy

[@magnuswootton7368]

@@andyruble633 that glazed pot is a beauty, i live the little cross stamp on the side, it actually looks like its metal. ill clean that one and fill it up with milk if i ever got it!!!!