Does anybody know if it is OK to use a soldered splice? I’m wiring in the solenoids for the pneumatics, and the wires need to be longer. 
I haven’t seen any rules that prohibit solder splicing wires, and techniques are discussed in the guidelines, Tips, and Good practices manual.
Soldered splices are legal. You can also get uninsulated butt/parallel splices and heat shrink at radio shack and use that.
I like soldering and using heatshrink for insulation.
Thanks Guys!! That helps a lot!!
(Now, is that smoke good or bad…)
That’s what we did, we used heat shrink (hooray!) you can’t even tell
i dunno…is it the “magic blue smoke?”
or is orange???
–Usually blue…but if you try a globe motor, that could turn orange! (I don’t know this through an experience or anything…)