V-Slot Hand Cutting Jig

thingiverse

This tool helps you cut 20x20 or 20x40 V-Slot accurately with a hand saw. On the images, the black V-Slot is the support and the gray one will be cut. Orange pieces are 3D printed. L Brackets are used to get an accurate cut and can be adjusted to the thickness of your hand saw blade. This tool has been inspired by Kyo's work on Openbuilds : https://openbuilds.com/builds/v-slot-cutting-system.2138/ Material needed: * 500mm or 1000mm Openbuilds V-Slot as support * 4x L Brackets Triple (buy more if you have more than 6 V-Slots to cut) * 14x Tee-Nuts * 4x M5x10 Low Profile screws * 4x M5x20 Low Profile screws * 4x M5x25 Low Profile screws * Hand saw for metal/aluminum Instruction: These instructions are to cut a 20x40 V-Slot. 1. Fix the end stop (smaller 3D printed part) to one side of the V-Slot with 2x Tee-Nuts and 2x M5x10. Tighten strongly. 2. Fix the cutting jig (biggest 3D printed part) with 2x M5x10. The vertical oval holes need to face out of the V-Slot. Do not tighten too much, it must be able to slide on the V-Slot. 3. Add 2x L Brackets on the left of the cutting jig (on the side of round holes) with 4x M5x25 and 4x Tee-Nuts. Tighten them strongly and as close as possible to the 3D printed part (check everything is well squared). 4. Mark the V-Slot at the length you want to cut. Insert 2x Tee-Nuts on the side of the end stop and 4x on the side of the cutting jig. Tighten the V-Slot strongly on the end stop. 5. Move the cutting jig to the mark on the V-Slot. Put the hand saw blade on the V-Slot against the two L brackets to perfectly adjust position (you can use clamps to keep the blade against the L brackets). 6. Add two latest L brackets to tighten the V-Slot using M5x30 screws and adjust their position to have a space corresponding to the hand saw blade thickness. Update: 2017.10.24 20:10 : Fix wrong M5 length in material needed section 2017.10.26 13:30 : Add selective infill to make parts stronger. Update screw holes shape to avoid the need of cleaning after printing