Some self-made pulleys, toothed bearings, etc a big step forward.
Opens up a lot of possibilities in the future, like extra-wide pulleys for big printer.
http://blog.arcol.hu/t25/
Doesn’t seem to be any info about how he made these.
Needs gt2 and gt3 profiles. T2.5 is outdated.
no love for HTD 3M ? 