With a second CR-30 in hand, I’m starting another round of printer upgrades. The knowledge gained from the first set of updates is proving highly valuable. This time I will make smaller incremental upgrades and document each individually. This should make it easier for someone to pick the modification that’s right for them.
The first upgrade is the simple addition of a linear rail for the X axis. This addresses what I think is the weakest mechanical part of the printer: the easily deflected hot end mount plate. The stock wheel mount for X is too close together, which I understand from a packaging standpoint. But it means the long lever arm of the hot end easily overcomes their weak clamping force.