Gear Driven, Adjustable Height Tape Board
Turning a single bolt with the on-board stored 1/4" allen key will adjust the height of this tape board from 1-1/2" to 2-3/8"+. Nearly 3/4" adjustment range. The tape board is 15-3/8" wide x 40" long. Be sure to watch the linked YouTube video for complete assembly. If you have any questions, please post them in the YT video comments and I will do my best to help. Thanks & good luck!
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Jigs & Fixtures
Files Included (5)
alternate-nested gears(G2x1+G3x4).svg
40 kBboard-15.375(SO).svg
150 kBgear 3.v2(SO).svg
100 kBgear1.v2(SO).svg
28 kBgear2.v2(SO).svg
70 kB
Materials
Wood:
3/4" x 15 3/8" x 40" (finished dimension) prefinished plywood for the tape board
Enough 3/4" prefinished plywood for the gears:
Gear 1 (qty 1) 10 3/8" finished diameter
Gear 2 (qty 2) 13 3/8" finished diameter
Gear 3 (qty 8) 3 3/8" finished diameter
Hardware:
(8) 5/16-18 x 1 1/4" hex bolts
(8) 5/16-18 x 20mm threaded inserts
(1) 5/16-18 tee nut
(1) 5/16-18 x 1 1/8" socket head cap screw (you will probably need to buy it longer and cut it)
(1) 5/16-18 hex nut
(4) 1/4" flat washers (1/4" washers usually fit nicely on 5/16" bolts)
(2) #14 x 1 1/4" pan head sheet metal screws
(1) 1/4" allen key
(2) 10mm x 3mm magnets (or adjust the magnet holes in the allen storage slot for whatever you use)
Shaper Tape
Tools
Shaper Origin
1/8" cutter
screwdrivers
1/2" wrenches
Instructions
Skill level is "Easy", but some of the parts require 2-sided milling, so you will need to know how to properly flip and re-grid your workpiece. Cutting the gears is time consuming, I would consider this a day project. As I discuss in the video, my tolerances for gear fit were tighter than necessary, but it all worked. I would consider (recommend?) scaling gear 1 (center gear) down by maybe .020" (or more), since gear backlash really isn't relevant for a project like this. Or just offset the outside profile cut by .010". The project files contain the basic vectors, without any embedded cutting info or color coding. There are some text notes in each one. I used 3/4" prefinished maple plywood, because of the finish's good durability and low friction. **Updated: Just added an alternate file (alternate-nested gears(G2x1+G3x4).svg). Thanks to Greg from the Shaper Fans FB group. I have not inspected or tried this file, but Greg made the spoke holes in gear 2 a little bigger to be able to nest 4 of gear 3 into the cutouts. Great idea! If I were to make another one of these, I would actually just forget about the original spoke holes and leave the shape of the 4 gear 3 cutouts in gear 2...