Originally Posted by weirdboy
How much do you think you have invested in the whole thing? I mean including boards & insulation, adhesives, etc. and also the controller.
ha! I've spent way more than I should on it.. looking back it would have made more sense to get a craigslist fridge/freezer... but half of the fun for me is putting the stuff together...
about $40 worth of insulation It took one and a half of those 4x8 sheets (I got the cheap stuff first and "upgraded" to R-Max later.. shoulda just gone w/the R-Max),
I had the wood and hardware leftover (latches/screws/hinges/etc) from other projects, but I would guess there is probably $25 worth of wood ( one and a half 4x8 sheets + scraps) and $15 worth of "hardware"..
In the controller;
~$30 for the arduino dev board, $20 for the display and probably another 20 or so for sensors/eeprom/rtc+oscillator, again I had a lot of the other parts (plastic box, connectors, wire, breadboard, resistors etc.) left over from other projects. there's definitely some parts in there that are not nessesary. the Display is totally overkill for example and I'm not even using the RTC or the eeproms yet.
The relays were about $7 each.
All together, if you include the controller I've got just over $100 in this thing. After I add a heater it'll probably be closer to $130 or so. I guess its pretty comparable to a $50 CL fridge + (new) Dual Stage Ranco certainly quite a bit more work though