Hello
I am soon going to build an aluminium portal but I’m still unsure about how the belt drive of the Y axis should look like.
That why I want to present my design to you and ask for your opinion.
Before a few details about the main gate:
Weight: around 300kg
Portal weight: around 120kg
recirculating ballscrew 20x10
transverse paths: 900x1000x200
guide bar Y axis 35mm
guide bar X axis 30mm
guide bar Z axis 20mm
Aluminium profile strength 40mm/80mm
The belt drive:
Belt length 1790mm-HDT 5M.
30 fold tension roller, as well as 56,16mm toothed wheel. The drive toothed wheel is either directly attached to the engine or on a separate wave. Unfortunately, I cant do one engine for each spindle because my bake outboards can only control 4 engines. I need the 4th one of the 4th axis.
Attached you see a picture.
Many thanks in advance

http://www.fotos-hochladen.net/uploads/kom...t2jye9zpa1g.png