Drill press made Knee DartsSubscribe
  1. SPY007's Avatar
    Member Since
    May 2006
    Nov 18, 2010, 11:20 PM - Drill press made Knee Darts #1

    I am always trying to come up with ways to build my own stuff. It is much more fun and challenging. Here is what I came up with for knee darts.

    These were made using the WOF blue prints. The cost of materials was only about $5. The materials needed were several sets of “Cable Stops” purchased for 57 cents each at Menards. They are up to $3 a set elsewhere. (The rest of the part in the set were not needed) I also used half inch and three eighth inch aluminum rod purchased at a metal supply shop. I bought 2 feet off each, much more than needed.
    Tools needed were a vice, vice grip, hacksaw, table mounted belt sander and drill press, metal files, a thread tapping tool, sand paper, steel wool, two metal spacers and JB Weld.

    To make the pointed dart, I simply cut a few inch length off the half inch rod, put it in the drill press like a bit, turned on the drill and ground down a tip with a course file, fine file and sandpaper. Once I was satisfied with the shape and smoothness, I let it spin against some steel wool. I then cut of the excess rod, carefully drilled the hole in the tip and one in the back that was ‘tapped’ with bolt threads.

    The other darts were more complicated. I first put the cable stops into a vice – making sure to put the parts that would get discarded in the vice as to leave no tool marks on my needed part. Again, using the WOF blueprints, I cut off the excess. Both cut cable stops needed some leveling on the belt sander.
    The shorter, cable stop that became the back ‘ring’, was wrapped in cardboard, squeezed in a vice grip and drilled out with a half in bit on the drill press. The longer cable stop was drilled in the same manner, but one end was drilled just less than half way thru with the half inch bit, while the other end was drilled just less than half way through with a three eighth in bit. A small ridge remained in the middle.

    I put a piece of half in rod through the back ring and into the half inch hole on the other cable stop. I laid this over the blue print, marked the half inch rod and cut it to the needed length.
    I did the same with the three eight rod in the front. To drill the front holes nicely centered, I dropped a half inch metal spacer over the three eight rod that became the tip. It fit perfectly. I then put a three eight spacer inside the half inch spacer. This made a great drill guide. (Ace Hardware)

    These parts were laid on the blue prints to insure they were streight and JB Welded together. I drilled and threaded the back hole, put in a headless bold, then put the bolt on the drill chuck and spun the piece against steel wool. Depending on the smoothness of the rods, some were sanded in the drill press before being cut to the needed lengths. The headless bolt was removed and of course I made three of these dart. Shown are two darts on my fiberglass knee pad that is in need of new paint.

    If I did not have all the needed tools or access to them, this would not be a cost effective project. It took most of a Saturday to finish. It may have been easier to buy machined ones, but I am happy with how they turned out.

    Attached Thumbnails Attached Thumbnails darts2-jpg   drillguide2-jpg   darts1-jpg  

    drillguide1-jpg   cablestops-jpg  
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  3. Nov 19, 2010, 1:08 AM - Re: Drill press made Knee Darts #2

    pretty cool
  4. JB Horns's Avatar
    Member Since
    Apr 2008
    Nov 22, 2010, 9:48 AM - Re: Drill press made Knee Darts #3

    Those look really great! You could have just bought some, but what's the fun in that? I'm going to try to make some one of these days. I just might have to follow this tutorial.

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