Table Saw Digital Thin Rip Jig

thingiverse

This is a lightweight rip jig designed to utilize a tire tread gauge as an analog readout. It features multiple attachment points for the miter bar, allowing it to work with most any table saw equipped with a standard 1/2" miter slot. I created it to fit the gauge I purchased specifically, but the other hardware is universal and should be available at your local home improvement store. I obtained mine from Home Depot. Accuracy depends on a multitude of factors, including the print quality, the gauge's accuracy, and the saw itself. I was able to achieve precise cuts within a few thousandths of an inch. Please share how it performs with your tools. Additional Materials Required: 1x Digital Tire Gauge http://www.amazon.com/gp/product/B07GRX7LWS 1x 10mm Hex Bolt Fully Threaded (4" - 5" length) 4x 10mm Flat Head 3/4" Bolt 3x M5 Washer 1x 10mm-1.25 Cross Dowel (6mm outer diameter) 1x 10mm Nylon Insert Lock Nut 4x 10mm Hex Nut 1x M8-1.25 Bolt (this may be pan head or hex head) 1x M8-1.25 Nut 2x M8 Washer 2x 608 Bearing Assembly: 1. Decide which mounting holes will be used in the base to attach the miter bar. You want the front of the base to be ~2" from the blade. 2. Insert 2 10mm hex nuts into the mounting holes you chose. These will fit very snugly. I threaded a bolt partway into the nut and used a hammer to lightly tap it down. You do not need to fully seat the nuts at this time, just get them flush with the surface. 3. Place the 10mm hex bolt into the base with a washer on the outside. Thread on the nylon lock nut. This takes a while by hand. It's easiest to hold the lock nut with pliers and use an electric driver to turn the bolt. Be sure the bolt still spins freely without too much back-and-forth play. 4. Insert the cross dowel into the carriage. This is a very tight fit. I used a screwdriver to rotate the dowel as I pushed it into place. 5. Slide the carriage into the base and thread the bolt through the cross dowel. Again, this is easiest with an electric driver. 6. Place the stop into place between the bars of the carriage. 7. Attach the bearings to the carriage using the M8 bolt. Washers are only needed between the plastic carriage and the bearings. 8. Attach the miter bar to the base using 2 10mm flat head bolts. Be careful not to over-tighten these as they may crush the miter bar depending on your infill. 9. Attach the locking knobs using the other 2 10mm flat head bolts with a washer between the knob and the miter bar. Operation: 1. Advance the carriage until the bearing is just touching the saw tooth. Zero the digital gauge. 2. Back the carriage away until the digital readout shows desired thickness. Note that the number will be negative. 3. Place the workpiece against the bearing and slide the fence over. 4. Make the cut. Continue to move the fence over so that the workpiece touches the bearing for repeat cuts.