Cnc repair...small diode laser and 3D printer

We have a Darkly Labs Emvlazer and a Chinese knockoff Replicator. Both are having calibration issues and while the issues are probably minor I’m drowning in getting our new class off the ground/assembling the Xcarve and would like someone smarter at the build/maintain end to get them operating if possible. I can pay a little or give a donation reciept for a lot. Whichever you prefer.