New design

A project log for Lasercut, UV laser PCB printer

Couldn't fit another laser into the name

JLAMJLAM 10/22/2017 at 18:420 Comments

A quick update of the openSCAD file to fit into the new printer. The screw holders and the joints have been updated as well to fix previous mistakes. Following are a series of photos and the improvements being shown by the photos.

This design fit together with the screws much better than the previous iteration and it is made from thicker acrylic. I'm a big fan of the green tinted clear acrylic.

Improved bearing slides to use ball bearings captured in acrylic cutouts for a smoother slide action. The dark acrylic parts holds the bearings in place. With a bit of filing the fit was perfect and has much lower friction than the previous iteration.The fit is spot on into the printer and it is much sturdier. It has a rigid metal frame and plenty of room to mount everything.The electronics have tidied up and mounted with standoffs. Data to and from the print head uses the original flex cables. The laser driver is implanted in the print head to eliminate high current pulses going down the flex cable. There is room left for an SD card holder and a screen.

Added a optical sensor for homing the slow axis.