I cut then a bit oversize, used counterbored panhead screws and washers every 3 or 4 inches (UHMW is a bit flexible if not tightly controlled, it also bulges under too much torque) and used a card scraper to tune the fit.

The UHMW works fine but can be a bit fussy to mount. You will have to take your climate into account. I live in an area where humidity swings are pretty narrow so I do not suffer from the movement issues that wooden runners can make in other areas. I replaced the ones on my sled with strips of QSWO which are working fine. This caused me some difficulty with small shifts as the expansion points were in play and not in play offsetting their positions helped a bit.įor things like tenoning jigs or coping jigs where most of the bar is captured by the miter slot during the entire operation they work great and I moved them to these jigs. I found that for things with a longer throw like a sled, only one adjustment point would be engaged at the start of an operation and both became engaged as you continued the motion. The miter sliders that I have only has two adjustment points. I have wood, UHMW and the Incra miter slider (the u-channel format not the Glidelock type like on my miter gauges). This makes it the bar's job to try to compensate for the slots irregularity. The primary challenge with miter bars seems to be the slots, not the bars. Now remove the slides and drill the holes larger for clearance, counter sink the tops and attach the slides. Now pull it out, turn it over and use a small drill bit and drill the holes, make sure the bit is small enough that it will not damage the threads on the slides, you can also use a transfer punch if you have one. Now place the base against the ripe fence and lower it down until it rest on the slides and press it down. Place some turner tape on the slides and peel the backing off the tape. Now place some shims under them so the are just above the table saw top, I just use paper. Remove the base and place your slides in the slots and see if they fit side to side and adjust if needed for a good fit. Move the fence over until it just touches the right side of the base and lock it down. Now set the base on the table saw where you want it to set in relation to the blade. Make sure your table saw fence is set up correctly to the blade of the saw. Here is the way I put mine on and it worked very well and both slide run correctly. The screw holes are very critical and must be drilled in the correct place or your slider will not run well in the slot. The fit well and they are light which is a plus in that sleds are some what heavy. I use the Incra, I have tried wood, steel and plastic and I like the Incra the best.

Incra miter slider se