Picasso Box single filament CKMY multi-colorizer extruder for cr10 series and ender series. here is the design for my Picasso Box CKMY colorizer for the cr and ender series. I am currently waiting on parts to arrive and will post more images and videos once constructed. the device works in place of the stock extruder for the cr10 or ender series. the filament is inserted into a bowden connector there is then a straight path of filament that passes through 4x chambers each chamber containing a 12v-24v magnetic push pull actuator at each side. on the end of each push pull actuator controlled by a raspberrypi. it directly injects color into your prints filament premelt and can be adjusted in real time.