Slack string on linear slides when using a different slide lengths

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SUMMARY

The discussion focuses on the challenges faced when using two different lengths of linear slides (400mm and 300mm) in a FIRST Tech Challenge robotics setup. The primary issue is maintaining string tension with the varying slide lengths, which affects the overall functionality. Participants express uncertainty about how the differing slide lengths contribute to the tension problems, indicating a need for further exploration of the mechanical interactions involved. The conversation highlights the importance of consistent slide lengths for optimal performance in robotics applications.

PREREQUISITES
  • Understanding of linear slide mechanics
  • Familiarity with FIRST Tech Challenge robotics
  • Basic knowledge of tensioning systems
  • Experience with mechanical assembly and design
NEXT STEPS
  • Research the impact of varying slide lengths on mechanical tension
  • Explore tensioning techniques for robotics applications
  • Investigate the design specifications of FIRST Tech Challenge linear slides
  • Learn about spring mechanisms and their role in maintaining tension
USEFUL FOR

This discussion is beneficial for robotics enthusiasts, team members participating in the FIRST Tech Challenge, and engineers focusing on mechanical design and tension systems in robotics.

Quietrabbit
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TL;DR
String slack possibly because of different length linear slides?
We have multiple 400mm length linear slides as used in the FIRST tech challenge robotics. However, our very last and innermost set of slides are 300mm length mounted such that they are not closer to the end of the extension (the black slides in the picture). We are having a lot of trouble keeping the string tensioned regardless of if we use springs (not currently in the photo). We were wondering if the two different extension length slides we used would contribute to this but we’re not sure why that would be. I would love to elaborate on this further but I’m not sure what details would be important.
IMG_5501.jpeg
 
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Quietrabbit said:
We have multiple 400mm length linear slides as used in the FIRST tech challenge robotics.
Please provide a web link to the "FIRST tech challenge robotics", so we can see how the slides are arranged.
 
Quietrabbit said:
... We were wondering if the two different extension length slides we used would contribute to this but we’re not sure why that would be. I would love to elaborate on this further but I’m not sure what details would be important.
We neither.
Please, show us the whole picture in more detail.
 

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