hi kurt
i had any idea and was wondering how you drill rod stock. my thoughts were to buy spigot jaws for my talon(oneway) chuck to hold the stock in my wood lathe, square the ends with a forstner bit. the precison ground that you mentioned in another thread w/ben(the brand name i got were fisch also avaliable from bitsnbores) and then drill as normal. i will be using delrin for the tenon (that i got from onlinemetals great co to do business with and thank you for the lead. i have solved the problem of countersinking the mortise. i found that a 1/2 82 deg SINGLE FLUTE works great the sink is a lot cleaner than the one pimo sells(even though that is fine bite as well) the single flute acts like a wood chisel in that it rides the bevel and cuts very clean and smooth. iknow is is getting off topic so i will end here
thanks very much
jim
a question for kurt (or anyone)
- KurtHuhn
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Jim,
That's precisely the method I use. I have a couple Oneway chucks - one with spigot jaws for stem work, and one with #2 jaws for stummel work.
I chuck the rod stock with spigot jaws, square the end with a forstner bit, and drill the mortis. then I drill the airway, which is a two-step process using a short bit to start the hole, and a tapered bit to finish it. This is primarily because the tapered bits tend to flex right at the point, so I start with a regular bit to support the shaft of the tapered bit while finishing off the airway. This may be an extraneous step, but I tend to over-engineer stuff in the interest of precision.
That's precisely the method I use. I have a couple Oneway chucks - one with spigot jaws for stem work, and one with #2 jaws for stummel work.
I chuck the rod stock with spigot jaws, square the end with a forstner bit, and drill the mortis. then I drill the airway, which is a two-step process using a short bit to start the hole, and a tapered bit to finish it. This is primarily because the tapered bits tend to flex right at the point, so I start with a regular bit to support the shaft of the tapered bit while finishing off the airway. This may be an extraneous step, but I tend to over-engineer stuff in the interest of precision.
- KurtHuhn
- Site Admin
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- Joined: Thu Nov 23, 2006 8:00 pm
- Location: United States/Rhode Island
I have a jacobs chuck for the tailstock, so I just drill the delrin like normal - chucked in the spigot jaws. I don't worry about squaring the delrin to much, I can eyeball it really well.
I drill the delrin prior to epoxying it. Trying to drill it after the epoxy cures and make that hole not line up with the holes in the rod stock.
I drill the delrin prior to epoxying it. Trying to drill it after the epoxy cures and make that hole not line up with the holes in the rod stock.