pic: Delrin Poly Cord Pulleys

#19

29-08-2012, 01:51

artdutra04 artdutra04 is offline

VEX Robotics Engineer

AKA: Arthur Dutra IV; NERD #18

FRC #0148 (Robowranglers)

Team Role: Engineer

Join Date: Mar 2005

Rookie Year: 2002

Location: Greenville, TX

Posts: 3,078

artdutra04 has a reputation beyond repute

Re: pic: Delrin Poly Cord Pulleys

Quote:

Originally Posted by Mk.32

So my worst fears as been confirmed, the .6 ID of these pulleys make them to flexible. Under the load of 4 cords there is about an 1/8 of an inch of deflection which makes them very stiff to turn. We are switching to 6061-T6 and with an ID of .66.

If you can, go with a much larger OD and use round hollow tube for the roller material.

1.5" diameter x 0.040" to 0.063" wall thickness aluminum tube works great for polycord rollers.

__________________
Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

世上无难事,只怕有心人.

« Previous Thread | Portal | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode	Rate This Thread:

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

Forum Jump

All times are GMT -5. The time now is 20:35.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.