- Dremel 4000 Rotary Tool
- Linear Shaft with a 10mm OD cut into 20mm, 30mm, 55mm, and 21.5cm lengths
- 6 M3 Hex Nuts
- 7 M3 6mm Bolts
- 2 M3 10mm Bolts
- Assorted rubber bands
Printing Notes:
- Everything should be oriented properly already, but make sure that the base is as flat as possible.
- The vortex-y thing on some of the parts is the linear bearing, make sure that that is always oriented vertically.
- Orient the dp_long_arm.stl pieces such that the flat "outside" bit is touching the bed, and using supports where needed.
- The dp_handle.stl piece needs manually placed support around the outside of the bottom.
- Print the dp_base.stl piece at a higher infill (>= 75%) because it REALLY needs the extra rigidity to keep the shaft straight.
- Everything else was printed at 30% infill without any issues, but you could probably lower that.
- The holes need to be manually reamed out a bit to ensure a tight fit with the shaft.
Assembly:
- The longest shaft goes into the vertical hole in the dp_base.stl piece.
- The smallest shaft (20mm) goes through the rear holes in the base piece (dp_base.stl), and one of the holes in the short arm (dp_short_arm.stl).
- The carriage (dp_carriage.stl) is then slid onto the large rod.
- The next smallest shaft (30mm) goes through the short arm, and is capped by both of the long arms (dp_long_arm.stl).
- The last bit of shaft (55mm) goes through the horizontal hole in the carriage, and the long arms.
- The handle gets two M3 hex nuts put into the pockets on either end.
- The handle is then placed between the holes at the end of the long arms, and screwed in place with two M3 6mm bolts.
- The carriage gets two M3 6mm bolts screwed into the holes near the top on either side.
- Two M3 hex nuts are popped into the hex shaped holes at the top of the carriage.
- The rear bracket (dp_upper_bracket_back.stl) is then placed on the other side of those nuts, and screwed in with two M3 6mm bolts.
- Two M3 hex nuts can be slid into the hex shaped holes at the back of the rear bracket.
- The Dremel can then be screwed into the threads at the front of the carriage.
- The front bracket (dp_upper_bracket_front.stl can be screwed into the rear bracket after inserting M3 10mm bolts into the pockets on either side.
- The cap (dp_cap.stl) can then be stuck onto the top of the long shaft, and an M3 6mm bolt can be screwed into the hole.
- Lastly, add rubber bands between the cap's screw and the screws on the carriage to create the right tension for you.