Router parallel guide

thingiverse

A Parallel Guide for the FERM PRM1015 Router. There are two versions of the fixed block upper and lower part (klemblok_boven and _onder). One utilizes a printed disk, while the other employs a ball bearing that offers smoother operation at the risk of more axial play, depending on the quality of the bearing. The design is not suited for milling circles. When necessary, modify it by adding a chamfer to the two baseplate bolt holes to support flathead bolts or adding a center jig, as seen in the original thing. The adjustment thread used is ISO M6 with 1mm pitch, so a full turn of the knob results in a 1mm displacement. If using a 608 bearing, a 6 to 8mm bushing is required. You can adjust the design yourself if you want to use a different type of bearing. As the M6 thread has some play (in the fixed nut), always make the last turn of the knob counterclockwise to remove the backlash. Idea: Print a mm scale, such as one generated with the InkScape ScaleGenerator extension. Seal it in plastic and fit it between the bottom plate and the fixed block. Parts: * 6x 25mm M5 bolt hex cap * 2x 35mm M5 bolt * 2x 25mm M5 bolt flat head * 10x M5 nut * 2x 35cm 8mm diameter rod * 10cm M6 threaded rod * 5x M6 nut * 608 bearing, preferably shielded (ZZ) or sealed (2RS) for keeping out dust Dependencies: The knurled finish library is used in the knurled knob OpenSCAD file. Print Settings: Printer: Prusa i3 Rafts: No Supports: No Resolution: 0.4 Infill: 20% Notes: Printer: Mendel Prusa i3 (http://www.thingiverse.com/thing:39889) PLA 3mm, 0.5mm nozzle Post-Printing: Remove the support wall in the sliding block (aanslag_blok) nut cavity.