Printrbot Metal Open Cable Chain Kit

thingiverse

This kit is a custom-made assortment of cable chains designed specifically for the Printrbot Simple Metal. Initially, I discovered that the pre-existing cable chains lacked complete solutions or presented minor fitting problems on my machine, so I made adjustments to the attachment points and links, and repackaged them for your benefit. Instructions Parts Links: 1x 45-in cable link 12x 90-in cable link 13x 90-out cable link 2x offset-in cable link 1x offset-out cable link 1x extruder assembly Attachment Points: 1x E Motor Mount bracket 1x Front Attachment Point 1x Rear Attachment Point 1x Y Motor Mount bracket Installation Instructions After printing the parts, you will be able to install the chain without disassembling your Printrbot. The pieces are designed to snap around the cable. Ensure you have removed the original cable wrapping and loosened the cables underneath to provide enough slack during installation. Links will be installed in an alternating in-out order. Note that when I say "in", these links feature their U-shape pointing inwards. "Out" pieces have their opening facing outwards, featuring a small channel across the long side. Rear Chain 1) Install the Rear Attachment Point at the back of the Printrbot, using a short M3 screw to attach it to the hole on the back of the printer. You may need to trim your grommet slightly to achieve a snug fit. 2) The order of links is as follows: 45-in, 6x(90-out, 90-in) 3) Place the Y Motor Mount around the Y motor with the cable attachment point facing rearward. There are small tabs you can use to secure it using a zip tie. 4) Connect the chain to the motor mount. Front Chain 1) Install the Front Attachment Point on the base of the printer, which will install underneath two of the screws used to hold the Z-axis rods. You may need to trim your grommet for a secure fit. 2) The order of links is as follows: 5x(90-in, 90-out), 90-out, offset-in, offset-out, offset-in, 90-out, 90-in, extruder. 3) Install the E Motor Mount around the extruder motor. There are slots to allow you to put a zip tie fully around the assembly to secure it. 4) Connect the chain to the motor mount. Notes You can safely install the front chain around the hotend/thermistor couplings that are on the cable, without encountering any issues. Depending on the size of your cable grommets, you may need to trim the edges slightly to allow the attachment points to sit flush with the body. After everything is installed, use Cura to move the Z and Y axes to their full extension and ensure the cable chains are not being stretched. Once you are satisfied with the range of motion, use zip ties to secure and tidy up the excess cabling in the bottom of the printer.