Kris Meerlo's Coating Machine
Some pictures from my new home made coating machine:
-Temp control ( roomtemp to 70 C ) -Variable speed control. -cooling with fans.
For the temp control I use the amazing sauna belt from amazing discoveries incl a digital temp controller from Conrad electronics. For quick cooling off the aluminium heating plate I use harddisc drive cooling fans. I tape the heat tracing from the Sauna belt on the Alu plate with heat resistance alu tape. The movement of the meyerbar is variable.
( I "stole" some ideas for the coating machine from the internet ). And I have some ideas from Hans.
Hanz' Coating Machine
One problem I have found with my machine is the following:
If I use normal glass that has only been cleaned with Glassex window cleaner, the machine produces a nice and flat coating. But if I pre-treat the glass with silane, the glass becomes hydrophobic. This has a negative effect on the flatness of the coating because the gelatin wants to run of the glass in any direction it can while it is still liquid.