Originally Posted by
tucupeis
hi. i purchased gocnc.de hobby a4 machine.. it arrived in 15 days.
about 1/2 of the screws were not included.
reference switches were not included (they are offered in web page)
no cables for reference switches, no mention of reference switches in manual
some screws have a too large head so stepper motors dont rest flat
bronze friction pieces are not aligned so they need to be machined by end user or the machine would not move any axis
it has metal to metal friction design (no linear bearings or such)
stepper motors inox rod must be glued by user to bronze bushing for it to hold the threaded screw that moves axis..... (very hard to bond inbox with bronze and it won't hold any force). and the bronze bushing holds the threaded screw with just thread lock.... the minimum force stepper applies the whole axis will disassemble itself....
one of the inox axis guides has no thread on its end so it can't be assembled.
manual is german only
in short words this machine is a badly designed, badly manufactured, incomplete toy
i would stay away from it if possible
regards