I sketched this up to simply mount a soldering pen to the Dremel drill press (model 220) retaining the hard stop for depth repeatability. I used 4 m6 heatset inserts with 4 m6x12 shcs to clamp the pen in place. The solder station I used is a Sodr*Tek, and the hole the pen fits in has a diameter of 0.475" or 12,06mm. I also uploaded a step file so you all may make any necessary modifications to suit your own purposes.  I personally used Polymaker ASA as I had a roll laying around.