Parts

Base plate:

• • Aluminum 6061-T651 plate 12"x24"x0.5"                            Online Metals                 (would recommend larger thickness than 0.5"; 0.027" max excess not enough)

Puck assembly:

• Aluminum 6061-T651 extruded round                                  Online Metals                (puck body)

  • Stainless steel 440C or Ceramic full complement ZrO2         Boca Bearings               (puck bearing)

  • Aluminum 2024-T4 pulley stock, 0.2" pitch, 12" long            Stock Drive Products      (puck pulley)

  • Stainless steel 304 sheet @ 0.048" thick                           Online Metals                 (puck hard flange)

  • Stainless steel 302 ultra-low head screws 2mm x 4mm       Misumi USA                   (puck hard flange retainer)

  • Stainless steel 18-8 2-56 x 3/16" long screws                     McMaster (91770A071)   (puck clearance retaining screws)

Spring steel assembly:

• • Aluminum 6061-T651 plate 12"x24"x0.5"                            Online Metals                   ("big block" piece and "mounter" pieces")

  • Stainless steel 301 0.015"x0.25"x 10ft strips                      McMaster (2416K68)         (spring steel ribbon)

  • Stainless steel 18-8 0-80 x 3/16" long screws                     McMaster (91773A054)     (spring steel mounting screws)

• Stainless steel 18-8 dowel pin 3mm x 14mm                      McMaster (91585A060)     (bearing shaft)

  • Stainless steel 316 shaft shims 0.125"ID 0.005" thick          McMaster (90917A425)    (bearing separation washers)

  • Stainless steel 440C bearing 3mm ID x 7mm OD x 3mm     AST bearings (638HZZ)     (roller bearings)

  • Stainless steel 18-8 0-80 x 1/16" long set screws                McMaster (92311A050)    (bearing shaft set screw)

  • Stainless steel 18-8 2-56 x 1/2" long flat head screws          McMaster (91771A081)    ("mounter" plate mounting screws)

Hard stop assembly:

• • Stainless steel 304 anneals rectangle @ 0.1875" thick        Online Metals

• Stainless steel 18-8 dowel pin 3mm x 14mm                      McMaster (91585A060)

• Stainless steel 18-8 low profile 2-56 x 5/16" screws             McMaster (90910A683)

Cam assembly:

• • Aluminum 2024-T4 pulley stock, 0.2" pitch, 12" long            Stock Drive Products      (cam pulley body)

  • Stainless steel 440C bearing 3mm ID x 7mm OD x 3mm     AST bearings (638HZZ)    (cam shaft bearings)

• Stainless steel 440C bearing 3mm ID x 6mm OD x 3mm     AST bearings (601XHZZ)  (cam-actuator connector bearing)

• Stainless steel 18-8 dowel pin 3mm x 14mm long               McMaster (91585A060)    (center bearing shaft)

• Stainless steel 18-8 dowel pin 1.5mm x 12mm long            McMaster (93600A060)    (off-center bearing shaft)

• Stainless steel 400 series retaining ring 2.5-3mm OD          McMaster (98317A204)     (center bearing retaining ring)

• Stainless steel 400 series retaining ring 1.4-2mm OD          McMaster (98317A202)     (off-center bearing retaining ring)

Actuator assembly:

• Pyrex cylinder and graphite piston set                                                   Airpot (2K95)                     (piston and cylinder)

• Stainless steel shaft and shaft sealing interior components           Airpot (M9 Airpel guts)     (interior sealing components)

  • Rulon bushing

  • Elastomeric seal

  • Spring

  • Spring retaining rings (x2)

  • component-cylinder plug (1-2 required per assembly)

• Aluminum 6061-T651 plate 12"x24"x0.5"                               Online Metals              (custom-machined housing)

• Aluminum 6061-T651 plate 12"x24"x0.5"                               Online Metals              (custom-machined connector block)

• Brass 303 barb for 3/32" tube ID                                           Beswick (M3LS-1132)  (pneumatic attachment barb)