printrbot to normal reprap electronics mod and printable connector fittings

thingiverse

Note: Resin shrinkage over time varies by type, such as the orange resin I use which needs to be scaled 101%. Shrinkage occurs over time and will make parts hard to remove or crack if not oversized. Different resin types have different shrinkages, so a 100.5-102% scale should allow parts to still fit from a resin printer. If not properly scaled, it may still work but reduces life on the bigger 26-pin cable connector, and it can crack over time if not scaled according to resin shrinkage. Uploaded a 13x13_2_54_connectorv6thickerW_labelled_fixed.stl file that has been fixed using Netfabb's online services tool. Cura sliced it correctly but Sla slicer had issues unless post-processed and fixed. This design has been used to modify several Printrbot Metal Pro's so far, and the instructions are improving and will be added soon. 50-100 ohm resistors are essential on J I wires and H wire that needs to go to Y endstop. All connectors are labeled, and the resistors prevent damage if miswired. M wire goes to VCC 5V, which happens to be center pin on F5, F6 series boards. Check pinout descriptions if using other versions of Reprap boards. Also included is a F5, F6 drilling jig designed by Joshua Hjelmberg streamlab97351@gmail.com to drill holes for F5, F6 board placement. This board also has a regular USB connector. There are two instruction manuals being added: 1) make_replacement_cable.pdf and printrbot_to_new_board_connection_setup_guidev2.pdf, which will be updated again soon. Note that I have built locking mechanisms for pins, which require fine detail and normally require a resin printer. However, I have modified the locking mechanisms in versions with a "W" at the end of file names to print on an FDM with 0.3mm nozzle but may need mesh mixing to work with FDM. I re-uploaded the daughter board side IDE connector plastic print part because the right side pin for polarity was off by 1.3mm. This is now fixed, and some parts will be updated with lettering to make verification and hookup easier. A link to wiring specifications can be found on Reprap here: https://reprap.org/wiki/PrintrbotMetalSimpleDaughterboardtoControllerCable This is a result of a project I'm volunteering for weekly at a maker space and STEM lab for kids. The parts here are used to replace Printrbot Metal Pro cable management from the upper assembly, allowing attachment to regular Reprap boards, such as Printrbot F4, F5, or Ramps. The goal is to not only make these pins but also label sub-connectors with corresponding letters to connect to the printed 26-pin connector. This aims to reduce error rates dramatically from hookup and wiring, knowledge and time required, and make the kit as cheap as possible. In my case, there are about 15-20 machines in various states of needed repair, and the hardware will last 10-15 years but electronics is already worn out. This collection includes files used to make various parts, some Blender files for boolean removal or placement of lettering, and OpenSCAD files. Part of the setup requires an 18-inch IDE 26-pin 2-side male cable, hobby connector pins 2.54mm, removing plastic sleeves, and inserting the male end into the 26-pin printable header. The sub-pins headers will be labeled like the 26-pin header for easier wiring, with indicators in text or graphics as to their placement, also some connectors are polarized. Wiring for 3-pin limit switches includes a 100 ohm resistor in design specifications to avoid damage from incorrect hooking up during testing. Well thought-out feedback is much appreciated.