Is it possible, or playable to have my techpriest have two Mechadendrites equiped at the same time. I wanted to have a Medical one over one shoulder and Utility over the other.

Would this impose some penalties due to weight and potential balance issues?

Would this draw to much energy from my character?

Could I use them in an attempt to block, parry, or grab something whilst falling?

Anything else I didn't think of (if this is possible), feel free to add.

If i recall correctly, you can have as many mechadendrites as your Toughness Bonus without penalty

Rakatung said:

This, but for the life of me I can't find where that is written.

Uhh my magos has 8 mechadendrites O_o 83 toughness so far, I think I'll be doing like 190 effective toughness with unnatural x2 at the end of my magos career.

1 medical, 1 utility, 1 manipulator, 1 optical, 1 servo, 1 bolt pistol mechadendrite, 1 custom "shield" mechadendrite, 1 custom "heavy weapons holding mechadendrite" (helps me brace as a free action).

We like to house rule a lot of things

Mormoran said:

That is redundant, manipulator mechadendrites already let you brace as a free action.

Where did you find that information? It's not in the 3.0 errata, nor on the basic Dark Heresy book, Inquisitor's Handbook, Radical's Handbook or Ascension...

Might free me up to install another custom mechadendrite I've been thinking about...

Rakatung said:

Correct.

Mormoran said:

Join the Mechanicus! Get tentacles, be able to throw glowing energy balls, telekinetically grab metal objects from afar and frighten people with the sound of your voice without getting denounced and burned as a witch!