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Kenork
(@kenork)
Active Member
filament sensor MK3

Hello, the filament sensor of my MK3 does not work anymore (it used to work for 3 years). I checked cables, it was not wired properly after I changed the einsy card, I corrected the wiring but it still does not work. Maybe the bad wiring destroyed the sensor ? I wanted to change it but I see it is not for sell anymore for the MK3. Is anyone can help me ?

Thanks for your help

Napsal : 07/08/2023 11:01 am
Diem
 Diem
(@diem)
Illustrious Member

Have you cleaned the sensor and it's path of filament strings, dust etc?

Cheerio,

Napsal : 07/08/2023 2:45 pm
Kenork
(@kenork)
Active Member
Topic starter answered:
RE: filament sensor MK3

tx for the fast answer ! I did not clean. And when I wanted to do it and read the assemply book, I realise that there is no filament idler anymore. Maybe this is why ? I want to print one but I cannot find the stl model for the MK3.

tx

Napsal : 07/08/2023 7:10 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: filament sensor MK3

if the idler is missing, I expect that the bondtech idler, bearings and bearing shaft are also missing along with the three screws which locate the idler and the two springs which tension the idler. 

Idler printable part 
https://www.printables.com/model/88240-i3-mk3-printable-parts/files#preview:file-vCNHT

Bondtech gears   Either 
https://www.prusa3d.com/product/bondtech-drivegear-set/      (you would also need two thin square nuts for the prusa option)
Or
https://www.ebay.co.uk/itm/225581205115?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20201210111451%26meid%3Df878b6002b2a4636b7727a6ab03aa3a1%26pid%3D101196%26rk%3D3%26rkt%3D4%26sd%3D225302453319%26itm%3D225581205115%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithBBEV2bAndUBSourceDemotionWithUltimatelyBoughtOfCoviewV1%26brand%3DUnbranded&_trksid=p2047675.c101196.m2219&amdata=cksum%3A225581205115f878b6002b2a4636b7727a6ab03aa3a1%7Cenc%3AAQAIAAABQPzGgyhK8D4QCApcBuWVQe1qsoN395NgJVWTF7eo2rfipPwdfCio0EI4F5H%252Bx0wtS8%252Fu%252Fr%252FRUxEZ1KxNtbAGuwQqNawa9Mz45LW45pYy0nuj1HkeVNclKifEtQgOKvKVlinh3kjnR4nEmFK8Si1ortNrUmI9An9Htyhh37QZ2%252FB5fPg3VaRi0lQmprmTBAHiJ%252FaKmC%252FBSE7qKwdYrtCLWDAB2MGBajgQDup53dcYvI7OlcwPIyPldnPr15DgW6t9ZfJogMId60HhilRi%252Bjs%252FIUyLdF%252FPn3%252BBfnelx3wlD9MhpLs7BMpaEGPlVRG6jtMTwwW5wacDKJaHaoFifCAtFoC4TJBDfHXrfQqmmEVUCQ2O0uzR591sHqPSmPG98ICAWF46eAezOTodokdxP0Aujct1cRiYbPdD67c%252FMpZr1jS8%7Campid%3APL_CLK%7Cclp%3A2047675

Extruder Idler springs   Either 

https://www.prusa3d.com/product/idler-spring/
OR
https://www.ebay.co.uk/itm/324419328355?hash=item4b88e61963:g:FUQAAOSw4xVet~ry&amdata=enc%3AAQAIAAAA0HIrDwcTvJBr9gN4f597KMkOQXG4c6GVxZQmPSUEznFW7aCv18WA0Yyc0bYP%2Fc5f4NL9zoEfCH71VEpF5IHXiSuiSjRN7bs86nxhvSM8vvendeC831%2F3CD2zjCh6fzs7BMvt%2BSyGaIkn3ft%2BMmO4m%2BWWXpZAtPwoL87DgReOimzrZjVHxo18OozkRuG7ws7dEpnMGxzoiZFQi1QDaTVu%2FSjPehsE0snKYPZIy1%2FX8062kDxplyBHcuGEj2Z0MhHprQ2nXYfE7sy3CLAUnN7QTB8%3D%7Ctkp%3ABk9SR7zIjce6Yg

Mounting Screws  Either 

https://www.prusa3d.com/product/mk3s-fasteners-spare-bag-2/     (YOU WOULD PROBABLY NEED 2 PACKS BECAUSE THERE ARE ONLY 2 m3X40 SCREWS AND YOU PROBABLY NEED THREE)
Or
https://www.ebay.co.uk/itm/383632777601?hash=item59524ba181:g:1zwAAOSwjVFfDgnq&amdata=enc%3AAQAIAAAA4KzKKq1qKNhQjclBJyzNLPkMSBY2XnI0U8DYvXRrTMyedNNIsVTkFWgRzLglVP2RMPQiBAPxYTmMs%2FuqfTAiGxxAWmfHJyWQ4VBmCnpAqGlED9%2BAZAqPF7Gy71onfMrXxHSpJXGHadL7XmVhEWaO%2FHIOKaUgnO5jt1IOG0%2B%2B6hvNdj8yv0%2BSiVosd5LbHxI1qqAJCGlxLbkgsMB3O8H0PWgt8NVOVKzRdlu56eF4H%2Bt2weBrGw0wVxOR2lKNqj55nq5LFC35kXm7K4eeOgcB9elRB56Vi6uUCryf5r42vnmb%7Ctkp%3ABk9SR4D-ose6Yg

I hope this helps, 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Napsal : 08/08/2023 9:32 am
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