[The_Hyphenator]

I've got a couple of players in my group that really wanted to take technical skills that would let them make things (specifically Forgery, the Biotech skill group and Chemistry). I was looking through the book trying to find examples for thresholds for the extended tests necessary to make these kinds of things, but there doesn't seem to be much in the way of guidelines for GMs on this subject in the 5th edition CR. Am I missing some rules here? If not, how have you handled crafting-type extended tests in your SR5 game?

[Kincaid]

For Forgery, the threshold is set by how many hits the player rolls (p. 146), so it's as good as the player makes it.

I don't really have any experience with Chemistry or Biotech, but I imagine any sort of non-routine use of the skill (which is probably what most interests Shadowrunners) would be at least a threshold 4 (hard).

Honestly, a lot of this gets handwaved in my games.  If it's feasible and something the player is really committed to, I'll give it a reasonable interval so they don't have to wait 8 months in-game to see the fruits of their labors.  If it's something like making your own fake SIN in 4e (that is, needlessly complex and much more easily solved with nuyen) and the player is just looking for a cost break, I'll make the threshold higher to encourage B/R time be spent on something a little more dynamic.

[BRKNdevil]

I'd say the threshold would be an extended test for the wanted rating and the time to craft be the same as trying to buy it. What i don't know would be how much it would cost to actually make.

[SlowDeck]

I would go with what Xenon said, with the caveat that it seriously depends on what the player is making. For example, knitting a napkin would be a threshold of 2. Carving a wooden horse with very fine detail would be a 4. Dehydrating dihydrogen monoxide would be a 1.

[Namikaze]

I created a conversion of the chemistry rules from 4th edition, which might give some hints on thresholds and such.  You can find a link in my signature.

[Demon_Bob]

Dehydrating dihydrogen monoxide would be a 1.

You can't dehydrate dihydrogen monoxide silly.

[SlowDeck]

Dehydrating dihydrogen monoxide would be a 1.

You can't dehydrate dihydrogen monoxide silly.

Yes you can! It just requires a lot of heating to do it quickly. And then, if you turn the temperature down enough, you can rehydrate it! Just don't turn the temp down too far, as dihydrogen monoxide tends to solidify