idea for linear belt drive

[irving2008]

its the same idea that was documented here to avoid racking when usiing one leadscrew offset from centre. The neat idea here is to make it the drive mechanism too... and I've not seen that before! The great thing about this is the pulleys at each end run in the same direction and in sync, so this works as a drive mechanism. 15 or 20mm belts can take some punishment, so it could work well....

[BillTodd]

,how do you change autocad drawings into something everyone can see?

Export as bmp then use Serif PhotoPlus to convert to JPG

[boldford]

Export as bmp then use Serif PhotoPlus to convert to JPG

Or install Draftsight as a freebie.

[JAZZCNC]

Or install Draftsight as a freebie.

2 year ago that mate sure he'd have found something better by now.!

[dickieto]

its the same idea that was documented here to avoid racking when usiing one leadscrew offset from centre. The neat idea here is to make it the drive mechanism too... and I've not seen that before! The great thing about this is the pulleys at each end run in the same direction and in sync, so this works as a drive mechanism. 15 or 20mm belts can take some punishment, so it could work well....

thanks once again irving.
I use to work on a machine years ago,that worked very similarly but with wire ropes, which pulled a sledge down a passage that feed cattle.
great what you think of when looking for cheaper alternatives than racks or ballscrews:naughty:
do you think that the belts would deflect(bounce) to much on travel over 8 ft?