Dropperpost remote

thingiverse

This is a remote for dropper posts I created some time back, the lever sits more underneath the handlebar and with rotation pivot further forward than others. The idea is that you shouldn't have to release your thumb as much to activate it and instead be able to maintain a better grip of your handlebar. Useful if activating it while riding through a rough section. You need: 1x 608 bearing, preferably sealed 1x M8 washer 1x M5 large washer 3x M5 Nut 1x M5 bolt 1x M5 washer 1x wire clamp thingy from a Shimano rear derailleur 1x wire tensioner from a Shimano shifter 1x M3 bolt Some instructions: Printing: -Print everything in ASA or ABS. 100% infill. You want it strong. See the screenshot of Simplify3D for how to orient the different parts. -Use supports everywhere except for in the channel for the wire. Remove them manually. -Cold acetone vapour smooth everything for extra strength, 24h minimum with very little acetone in the container to get the acetone to penetrate the parts better. -Clean up all parts post-printing with a Dremel/knife Lever: -Attach the thumb plate to the lever by gluing it with acetone (it will partly melt the ABS/ASA). -Press the nut into its slot with a small drop of acetone to glue it in place, similar for the washer on the other side. Wait for the acetone to evaporate then use a short M5 bolt and the wire clamp from an old Shimano derailleur to clamp down the wire. -Press the bearing into the lever, make sure you use a Mainbody: -Thread the hole for the wire tensioner with a M5 tap. Screw in a wire tensioner from a Shimano shifter or similar. -Drill out the bottom 8mm of the hole in the middle of the bearing with a 5mm drillbit. -Thread the rest of the hole in the middle of the bearing with a M5 tap. -Press a M8 washer around the center pin to act as a harder mounting surface for the bearing. -Press the lever assembly with the bearing in it onto the body. -Secure and preload the bearing with first a large M5 washer and then a M5 bolt. Clamp mechanism: -Take a M3 bolt, cut off the head so you have a threaded rod that is 16 mm long, cut a small slot in one end for a flat screwdriver. -Use a M3 tap to thread the hole on the outer side -Use a M5 tap to thread the hole for the clamping screw -Assemble the front clamp to the main body with the M3 rod as the axle. Use a small amount of Loctite to hold it in place. Attach the wire from your dropper and go shred!