Duet Laser Filament Sensor For Direct Drive E3DV6

thingiverse

This is a remix of the device at the following URL: https://www.thingiverse.com/thing:4341389#Print%20Settings This is significantly different on the outside versus the original model. I needed to change the shape so I could mount this directly on top of my Basaraba mounted Direct Drive extruder and E3D V6 hot end. The device mounts on a base I designed for another filament monitor. (https://www.thingiverse.com/thing:4563159). The inside is very similar using most of the original design. I removed the tension spring system because I could not get GT2 springs with long enough legs to make it work. I replaced it with an axle that can move slightly in a slot. I then added tension adjuster screws that are inserted from the back that allow the user to change the tension between the grooved pulley and the drive gear. I also added a external axle drive wheel to help with filament feeding if needed and it also allows you to monitor the movement of the drive gear and filament to make sure it is moving as it should. I also removed the Bowden tube connector and resized the hole so I could just insert a piece of Bowden tube in it with a friction fit. Then I added a hole to view the LED's on the monitor without the need for the clear filament. Last I added a collar on the gear shaft to minimize and movement of the shaft and a plug to hold in the grooved bearing shaft. To see how internal parts fit together follow link above to original design. All STL and STEP files are included for further modification. RepRap Firmware configuration I use: M591 D0 P5 S1 C"E0_Stop" R0:550 E3.0 D = Duet3D laser sensor for extruder drive 0 C = Connected to endstop input E0_Stop (E0) (C"E0_Stop") R = Tolerance 0 to 550% (R0:550) still need to calibrate this, you will also have to do that for your setup E = 3mm comparison length (E3.0) S = Monitoring enabled (S1) Bill of Material: (Mostly plagiarized from original design) Laser filament monitor or clone https://smile.amazon.com/gp/product/B081MVR76N/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 5 mm diameter Carbon fiber rod https://www.amazon.com/gp/product/B07LCK19D5/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1 U604 U groove deep groove ball bearing 4x12x4mm https://smile.amazon.com/gp/product/B07VRK86SP/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 2 x MR95ZZ bearing https://www.aliexpress.com/item/32815201066.html?spm=a2g0o.productlist.0.0.423f3f86R7CXux&algo_pvid=e599ffa7-d854-4ef0-8640-a19ce0d67ccf&algo_expid=e599ffa7-d854-4ef0-8640-a19ce0d67ccf-0&btsid=0ab6f82315899601547247037e2962&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_ 1x Extruder pulley 36 teeth https://www.amazon.com/gp/product/B07P5Z2G9Z/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 1 x 4mm L=20mm steel rod (I used a 1 5/16" drill bit and cut 20mm off the shank with my dremel)) Fasteners 2 x M3 L = 25mm screw To mount case halves together 2 x M3 L= 12mm Screw for mounting Monitor to Base 2 x M3 Nuts to attach base 2 x M3 insert brass nut for connecting front and back covers 2 x M2 L = 4mm screw for plastic for mounting monitor 2 x M3 L=8mm screw for adjusting pulley/gear tension