Prusa MK3 USB Bore Scope Camera from behind Printhead

thingiverse

I constructed a holder for a 5.5mm or 8mm camera, which fits behind the printhead. So the view is unobstructed. It replaces the Prusa cable clip on the backside of the printhead. The first try was with a 5.5mm camera. It worked, but the resolution of 640x480 was not very satisfying. https://www.amazon.de/gp/product/B01NBRXQDM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 So I ordered a HD 8mm Camera with 1280x720 pixels, IP67 and 30fps. Now you can watch the nozzle deliver the filament. https://www.ebay.de/itm/382279279258 Both cameras have an inbuilt LED lighting, Though the 8mm lighting has to be switched on manually after each restart. 1m cable lenght is more than sufficient. When you install this holder, please have a look if the case for the heated printbead cable is low enough. I use a horizontal cable cover. Both cams work with octoprint. Best scliced with small side down and support from printbed. 14.12.18 I added a 8mm Version with longer arms. It helps to observe the nozzle from a lower standpoint if you use the silicon cover for the heating element. You will need a very flat heatbed cable cover, like https://www.thingiverse.com/thing:3007210 1.4.18: For the MK3S, use the shorter one with the flat heatbed cover.