I spent all of my past day studding existing fixed gantry designs (and even moving gantry designs) and I’m focused on the gantry itself.
As you know most of existing designs used round rail/bars (and almost all unsupported) witch I don’t like at all so those are not my business. Looking at some designs that utilized profile rail (lm) I see something that I believe is done wrong.
Most of designs with profiled rail mount them in wrong way (I think) so instead of putting the rail in such position that it takes force perpendicular to it and transfer it to surface underneath it (which I think is the key benefit of using those rails over round one, if we do not take tolerance in account) they installed linear rails in position that those rails taking force caused by weight of Z axis and I’m pretty sure that those rails not designed to deal with that at all
Take a look at images below, am I correct? Please let me know what you think about this
Is it proper way to install LMG? I really need some help about this
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