Why does this design of pulley used less in Corexy

Hello everyone! I'm a new designer of Corxy Machines.And now the arrangement of the pulleys makes me confused.as show in picture,why does this design of pulley used less in Corexy i have ever seen.


Edited 1 time(s). Last edit at 06/02/2016 03:34AM by faith.

First, the image is the design of a hbot setup and not a corexy.
The corexy is a "evolution" from the hbot to solve a twist problem the carriage suffer because the belt push from the same side. But If you use a rigid frame and good linear movement you can go with this setup.

PS: you must have 2 belts, all 4 belt end´s must be secured in the carriage.
From the image it appears you have only one big belt, and i assumed is a error when you have made the image.
If is not a error, them it will simply not work.

Edited 3 time(s). Last edit at 06/02/2016 04:34AM by filipeCampos.

Quote
filipeCampos
PS: you must have 2 belts, all 4 belt end´s must be secured in the carriage.
From the image it appears you have only one big belt, and i assumed is a error when you have made the image.
If is not a error, them it will simply not work.

No, 2 belts are not needed in an H bot design. One big belt is exactly how it works, and there is not an error in the image.

Quote
Koko76

Quote
filipeCampos
PS: you must have 2 belts, all 4 belt end´s must be secured in the carriage.
From the image it appears you have only one big belt, and i assumed is a error when you have made the image.
If is not a error, them it will simply not work.

No, 2 belts are not needed in an H bot design. One big belt is exactly how it works, and there is not an error in the image.

correct, my mistake..