Misumi Linear Slide Insert for SAR: (String Drive) FTC Robotics

Assembly & Rigging Tutorial Video: 

Features:

• Misumi SAR 200-300 Series full Compatibility: Designed for  integration with Misumi's SAR slide series, including dual-stage (SAR 210-250) and three-stage (SAR 310-350) models.
• Durable Construction: Built for reliability and longevity in competitive robotics environments. This model can take a beating + withstand the weight of a 20kg robot being lifted by x2 435 motors. 

🛠 Required Hardware:
• M3 locknuts (4mm height)
• 8mm countersunk M3 machine screws, 
• 40mm countersunk M3 machine screw, 
• v-groove bearings (3x12x4 mm). 
• Optional: m3 sleeve nut https://www.rvspaleis.nl/moeren/hulsmoeren/verzonken-binnenzeskant/9062-2-3_1
 

Installation Tips: 

For stacking multiple slides, replace the M3 locknut with a sleeve nut. Drill a 4.5mm hole in the Misumi slide, insert the sleeve nut, and secure using an 8mm screw with Loctite to ensure stability.

I also have an additional model for rigging up these slides with belt, if you want a more reliable assembly: https://www.printables.com/model/1242612-linear-slide-insert-for-misumi-sar-slides-belt-dri 

The whole system can now be assembled with:

• Misumi SAR 200-300 series (330 series here)
• M3 locknuts (4mm height) 
• 8mm countersunk M3 machine screws, 
• 40mm countersunk M3 machine screw, 
• v-groove bearings (3x12x4 mm). 
• AWT8-40 TENSION SPRING (misumi) OR gobilda tension spring 
• Optional: m3 sleeve nut

• Change Log:
  Added step file with string example
  - Added genera mounting points for gobilda pattern channel
  - made the whole system smaller 
  - Tightened tolerances on misumi slides for stronger attachment to misiumi slides (needs to be “torqued” on as it’s quite snug) 
  - added in holes for coutnersunk screws
  - Added in double hole for a sleeved nut insert when rigging multiple stages together  https://www.rvspaleis.nl/moeren/hulsmoeren/verzonken-binnenzeskant/9062-2-3_1 This keeps the whole system nice and compact. 
  - extended the thickness of the system for more rigitidy. The previous v-groove bearings were snapping my mounts in PLA. 
  - changed all mounting holes for M3 screws rather than M4
  - added in hex mounts for a locknut rather than self-tapping M4 screws. 
  - Added in throughhole for spring mounting at the end of the retraction string