OK....before I start. Let me say that my first attempt here was a classic "fail". But in any case, it was a fun experiment and you guys might get a good laugh, so here goes:
I rented the Scace from Gregor not too long ago. I used it to calibrate my machine and learned a lot using it. These Scace devices and Fluke Thermometers are not cheap (close to $500 I think), so I have to give big thanks again to Gregor.
Of course when I was renting it, I had a good look at the construction. It's a very simple device. Basically a naked PF with sealed basket, flow restrictor and a thermocouple in the center of a plastic puck where the coffee normally would be. It got me thinking of ways of making my own.
I while ago a friend gave me his cheapo t-type digital thermometer he got off e-bay for $10.http://cgi.ebay.com/2-K-Type-Digital-Th ... 3a5ad64712
I would have preferred a 0.1C meter like the Fluke 52, but this would work for my first attempt.
All the other parts I needed (a spare double basket and a flow restrictor) I already had. I just needed something for the plastic puck.
I thought I'd use a glue gun with a high temp melt stick to make the puck and seal the basket. The thermocouple would be route up through the hard glue puck and then bent over the center hole I drilled and tapped to install a fitting with a 1/32" pinhole restrictor. So here's what it looked like during drilling:
All looked great and I installed in the machine and gave it a try:
Unfortunately, the glue did not hold up well and started to get very soft during running:
I had suspect this might happen, but I figured it was worth a shot.
All good fun.
I think it would have worked very well apart from the the glue meltdown since the temps were coming close until the restrictor gummed up.
So next, I plan on making a better plastic puck and put a 53mm dia. o-ring under it (like on the real Scace). Anyone got an idea for the puck material and where to get such an o-ring?