Anycubic Kossel Linear Plus Top Cover with Filter, Extruder & Spool Mount

I wanted to build the Anycubic Linear Plus Acryli Enclosure by kelvinA, but I needed a top cover to make the printer suitable for printing ABS. I also wanted to integrate an air filter, extruder and spool mount into the top cover. So that's what I came up with. Ther are also 2 holes (spaced 20mm appart) in the top. I used these to mount a thermistor for the passivly heated chamber. With this thermistor I control the fan in the top to don't overheat the machine (controlled by Duet Maestro with RepRap firmware). I mounted the thermistor in a 15x10x30mm aluminium block so it is not affected to strong by the draft of the starting fan. The cover is designed to work with kelvinA's Kossel belt tensioners. This is a filter you can use: https://www.amazon.com/gp/product/B01M0M6BLO/ To mount everything to the printer you will need: 1x 140mm fan 2x Fume filter 1x M3x10 screws (to secure the extruder plate) 4x M3x10 screws (to attach fan cover) 4x M3x14 screws (to attach