This gives me some play that is used to advance the drill into the wheel face until it won't remove any more material. 02 narrower than the other far end which was dressed with a file to be a close but still easy sliding fit. In the picture with my thumb holding the drill in place that end of the guide bar is about. So "how does it advance into the wheel?" you ask? The guide bar that fits into the slot is tapered slightly. and that's where the DSJ (Drill Sharpening Jig) MkI comes in. And if I added some way to locate the drill so I could flip it over and it sat the same way and I had a way to control the feed into the wheel that I could index it and get both sides the same without a lot of fussing about. So that gave me the idea that if I had a simple jig which would hold the drill and used a little adjustable finger to "level" the lip being ground that this would make my life easier. So I only needed to work the edges until I they measured the same. This was a help because it let me set the angle and if I watched to keep the lip being ground "flat" to the table it did a good job of keeping the back relief on both lips the same. So first off I started out using the typical small angle fence that comes with the tool grinder. So some modification or a new MkII is needed. But it has a design flaw in the way the finger works that indexes the drill bit. I mentioned I'd made a MkI drill sharpening jig for use with bigger drill bits. This started in the home made tools thread but it seems like a good place to continue this since it may run for a while. What machine is that in the second picture? The rest tables on it are what all bench grinders should have. You're well set up to use some manner of jig on either of the two grinders you have already.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |