Can you Take 10/20 on Craft Checks?

[Maitre Du Donjon]

Shame, SRD says nothing about assistance (at least not in the skill description)... For item size vs. number of assistants, 1 per size category (starting at 1 for small items or less) seems reasonable. Would the bonuses from many assistants stack? they're all "assistant bonus" (although they don't come from the same assistant per se).

For the "take 20" thing, per the rules, you can't but if someone insisted, i would let them do it, but i would consider that the rolls would come in order (ie round 1 roll yields a "1", round 2 roll yields a "2", etc.) It wouldn't be to the character's advantage

Maitre D

 

[kreynolds]

You can't do that due to the critical chance of failure.

Except there is no chance of critical failure. At the worst, you ruin half your materials, but you in no way whatsoever ruin the entire item. Your progress is simply slowed.

 

[AuraSeer]

Except there is no chance of critical failure. At the worst, you ruin half your materials[...]

...which counts as a "penalty for failure", meaning you cannot take 20.