[peteeng]

Hi G - I can see the attraction of the twin gantry - symmetry has advantages... Peter

https://youtu.be/cKVgugQSMfE

[G-Spot]

[QUOTE=peteeng;2581894]Hi G - I can see the attraction of the twin gantry /QUOTE]

OMG! they hacked into my computer and stole my designs.....lol...and they put the track under the beams and their Z axis is rotated 90degs to the x axis.

Now I want to go back to twin beams again, I was tempted to abandon it due to the complexity to build, you need 2 screws instead of one on 2 axis, not just the one.

Also from looking at bearings I think I want to go for the 32mm cars and you lose so much track mounting under the beams, so that makes them criminally expensive. If I think I have a chance of producing a frame that is super stiff then I am going to go 32 otherwise 25.