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(→Drill the stem:: Formatting) |
(→Drill the airway in the delrin:: Formatting) |
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====Drill the airway in the delrin:==== | ====Drill the airway in the delrin:==== | ||
* Slice off a length of delrin approximately the length I need. I usually go about an 1/8" longer just to be sure I can bottom out the tenon in the mortis in the stummel. | |||
* I set the spindle speed to about 1200 RPM to drill delrin. Delrin is extremely stable under heat and pressure, and is self-lubricating. This also mitigates any risk you might have of using too much forward pressure and setting the drill bit off-course. | |||
* I do not face the delrin | |||
* I use a short drill bit, or a jobber drill bit with most of it's length swallowed up in the chuck. This helps prevent the bit from wandering. | |||
* after drilling, I use the tip of a skew chisel to cut 3 or 4 grooves in the delrin where it will be epoxied to the stem material. This is necessary, since delrin will not take adhesives very well. | |||
====Put the stem and delrin together:==== | ====Put the stem and delrin together:==== |
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