Mark Rehorst's Tech Topics

I have posted the master CAD file to Youmagine.com ,  or  you can access it here.   The second link is the google drive location that I may...

Updates:  I have made some changes to the original design, detailed below.  The changes include changing the drive pulleys, redesigning the...

Rev 2 was aimed at solving the bed-drop on power-off problem.  I investigated several ways to prevent bed-drop and ultimately settled on a g...

The normal way to move a bed in a coreXY printer is to use one or more lead screws to lift it.  A lot of printers use a cantilevered design ...

I've been using Composer to set up and maintain my web site for many years, but most of my efforts have been devoted to working on more...

Update 4/30/19 I have redesigned the PTFE leveling screw blocks.  Check the new stuff out here. Also, don't mount the TCO on the bed...

UMMD has lots of  white and UV lighting built in.  The UV really makes fluorescent filament prints look great! UPDATE! I have made many...