Mark Rehorst

Arrakis 3.1 new mode of operation being tested

Mark Rehorst

Arrakis 3.1 mechanism running without sandbox

Mark Rehorst

video 2026 02 08 22 09 29

Mark Rehorst

Snapping LG knob insert into 3D printed knob

Mark Rehorst

Arrakis 3 demo

Mark Rehorst

Ms Kitty enjoying Arrakis 3.0 before it's finished.

Mark Rehorst

Arrakis 3.0 moving the ball at 1000 mmsec, LEDs on.

Mark Rehorst

Arrakis 3.0 first test with sandbox, no sand

Mark Rehorst

Testing a Quad ESL-63 driver after replacing the diaphragm

Mark Rehorst

Quad ESL-63 diaphragm interesting effect

Mark Rehorst

Scraping glue off Quad ESL-63 grid

Mark Rehorst

ESL-63 diaphragm glue bond to grid

Mark Rehorst

ESL 63 loose stators

Mark Rehorst

Thermal convection on surface of a pot of hot water

Mark Rehorst

Fun for Cats!

Mark Rehorst

221024_01 on Arrakis 2.0

Mark Rehorst

Another test of the variable speed post processor

Mark Rehorst

Testing new post processor for Sandify pattern files

Mark Rehorst

220620_01

Mark Rehorst

Drawing at 200 mmsec

Mark Rehorst

Another servomotor test print, 300 stepsmm

Mark Rehorst

75 stepsmm servomotor test print

Mark Rehorst

480 stepsmm servomotor test print

Mark Rehorst

Servomotor protection circuit test

Mark Rehorst

Ultimate 3D printed wire twister

Mark Rehorst

021722_02

Mark Rehorst

021722_01

Mark Rehorst

Arrakis Drawing a 2.2 Sided Polygon

Mark Rehorst

Drawing at 300 mmsec

Mark Rehorst

Two more...

Mark Rehorst