Materials List

(3) 2-ft Delrin bars

(2) 1-ft Delrin bars

(1) 500mm guide rail https://www.mcmaster.com/#6723k5/=14s83vx

(1) Low profile sleeve bearing carriage https://www.mcmaster.com/#6723k9/=1ccr9kr

(1) 4 in x 6 in x 3 ft (or longer, but the lumber only comes in 8ft long) https://www.homedepot.com/p/4-in-x-6-in-x-8-ft-2-Ground-Contact-Pressure-Treated-Timber-259270/100026579

(1) 2 in x 6 in x 3+ ft (only comes in 8ft long) https://www.homedepot.com/p/WeatherShield-2-in-x-6-in-x-8-ft-2-Prime-Ground-Contact-Pressure-Treated-Lumber-253921/206967808?MERCH=REC-_-PIPHorizontal1_rr-_-206970948-_-206967808-_-N

(1 pack) Phillips Flat Head Screws for wood, 316 Stainless Steel, Number 8 Size, 3/4" Long https://www.mcmaster.com/#90294a724/=yrmnjj

(1 pack, will only need 10/100) Button Head Hex Drive Screws, M3 x 0.5mm x 8mm long https://www.mcmaster.com/#92095a181/=1ccrq4a

(1) Multipurpose Neoprene Rubber Sheet, 6" x 6", 1/4" thick, Durometer 40A (medium-soft) https://www.mcmaster.com/#1370n17/=1ccrr8u

(2 ropes, each 10-ft) Ultra-flexible 18-8 Stainless Steel Wire Rope, 1/16" https://www.mcmaster.com/#3461t633/=1ccrtj3

(3) Wiffle balls without holes http://shop.ctstore.com/store/pc/viewPrd.asp?idproduct=1595&idcategory=3

(3) 8-mm diameter steel shafts, 1-ft long each https://www.mcmaster.com/#1272t38/=1ccryyu

(15) 8-mm steel bearings (what we have used for slider - crank project)

(1 pack) 1.5" Long, 1/2" Diameter Compression Spring https://www.mcmaster.com/#9657k352/=1cjgoaf