I did a quick search on this but couldn't find an answer so here is a new topic! Can a household oven be used for curing? Other than a vacuum bag port of some sort, what modifications absolutely need to be made for it to work? I have access to a cheap used one that i could put in my garage but wont bother if it wont work well for composites!

The problem with household ovens, aside from the hygiene issue if its still in the kitchen, is the temperature regulation.  Most domestic ovens the temperature can vary from what is set by as much as 20C as the oven heats and cools while it is running.  Depending on your cure cycle this might play havoc with the resin flowing stage of the cure and compromise surface finish. 

We know people regularly build ovens using domestic oven components and side from the obvious safety precautions, we always suggest using a good quality PID controller to ensure the temperature regulation is pretty accurate. Also many PID controllers are programmable so you can in theory program an entire cure cycle into the unit.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant