My PrintrBot Jr stopped working, and
while I have yet to troubleshoot the printer,
I suspect the problem is somewhere in the
nest of wires shown in Figure 3.
Rostock Max Summary
At first glimpse, the Rostock Max looks
like a great printer. It looks cool and has a
BCR of 78. To be honest, I have had nothing
but problems with the Rostock (Figure 4). If
it were a $400 printer, I might cut it a little
slack, but with a $1,000 price tag, its prints
are not even on par with the PrintrBot Jr.
Now granted, most of the problems can
be attributed to the overly complicated extruder system, but
there are other problems that plague this printer. For
instance, the heated bed is underpowered and has a hard
time reaching 70°C, much less the 100°C I like to use when
printing with ABS.
There are other problems, as well. Its poorly thought-out homing switches consist of a screw (Figure 5) that
must be inserted at an angle in order to make contact with
the switch. Delta printers are hard enough to get the bed
leveled, but this makes it almost impossible to get
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