Spar Drilling guides for RC sailboat- 11mm round

prusaprinters

<p>Print a couple of these guides to help you drill your mast and booms. They are designed for 11mm round spars, such as the ones from PG.</p> <p>The holes are 1.5mm. Just drill them out if you need a slightly larger hole. The top of the block has 2 holes spaced at 5mm so you can make spaced holes by drilling the first hole, then pinning the block through that hole and drilling a new hole, moving down the spar.</p> <p>By mounting multiple blocks to the mast, you can also help keep it aligned while adding pre-bend to the mast (such as an IOM mast) and to keep the bent mast aligned for drilling. Just move one block at a time and the others will keep the mast aligned.</p> <p>The second and third picture shows 3 blocks mounted on a mast. Two blocks hold the straight end against the edge and the third at the tip can be used to measure the amount of bend from that edge.</p> <p>The screw hole is already threaded for an M6 nylon screw, but will probably need cleaning up with a cutting tap to get a good fit. You can use a 20-25mm nylon screw. The screw head doesn’t matter much, as you will just be hand tightening it.</p> <p>You may have to drill or file the 11mm hole to get a good fit on your spar. It should be tight enough to not slide on its own, but should not have to be forced on either.</p> <p>3 perimeters/top/bottom, 20% infill 20-25mm layer height.</p> Category: R/C Vehicles