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molds [2018/12/27 13:40] – [Intro] yairmolds [2018/12/28 00:19] – [conformal coating] yair
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 molds for sugar need to be  molds for sugar need to be 
   *safe for consumption (even if not directly wallowed)    *safe for consumption (even if not directly wallowed) 
-  *hold at temperature of 160c (sugar base goes up to 146C but better safe)+  *hold at temperature of +160c  
 +    *sugar base goes up to [[https://idiot.io/wp-content/uploads/Electrodible/CandyMakers-1024x724.png|146C]] but better safe 
 + 
 +when making multiple impressions in a single mold, [[https://idiot.io/projects/corn-starch-molds/|silicon+cornstarch]] method falls short. 
 + 
 +{{:2018-12-27_20-33-44_chrome_photo_-_google_photos_-_google_chrome.png?direct&200|}} 
  
 see more at http://idiot.io see more at http://idiot.io
  
 ====Results==== ====Results====
-{{ :pasted:20181227-113538.png?850 }} 
  
-{{ :pasted:20181227-113541.png?850 }} +{{:mold2.jpg?600&direct}}
- +
-{{ :mold2.jpg?500 }}+
  
 ====make mold==== ====make mold====
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 ==== RTVs==== ==== RTVs====
 {{:pasted:20181227-105655.png?400}} {{:pasted:20181227-105655.png?400}}
 +
 +watchout for 
 +  * [[https://en.wikipedia.org/wiki/Viscosity|Viscosity]] - higher numbers mean running slower
 +    *[[https://en.wikipedia.org/wiki/Viscosity|{{:viscosities.gif}}]]
 +  * shelf life - always look at datasheet 
 +    * 20 month sometimes less. the smoothOn was opened and was all stiff 
 +    * the platinum base was much more viscous a day after opening. not a good sign.
 +    * {{:stiffon.mp4?0x600}}
 +  * 
 +
 +==== volume ====
 +we tried water, kuskus and polymorph pellets.\\
 +
 +but best is to [[https://www.calculator.net/volume-calculator.html?rtanklength=19.5&rtanklengthunit=centimeters&rtankwidth=6.5&rtankwidthunit=centimeters&rtankheight=2&rtankheightunit=centimeters&rectcal=Calculate#rectangular|calc]]
 +
 +{{:pasted:20181227-150102.png}}
 +
 +calculate 3d volume from simplify3D = 22.5 per bit
 +
 +(22.5*4)/253 = **163** [[https://en.wikipedia.org/wiki/Cubic_centimetre|{{:pasted:20181227-150603.png}}]] 
 +
 +
 +
 +==== conformal coating ====
 +
 +{{:pasted:20181227-113538.png?550x270 }}
 +
 +{{ :pasted:20181227-113541.png?550x270}}
 +
 +==== Vacuum forming ====
 +
 +{{youtube>Gx66mS7U2vY}}