how shallow can you make mortise and chamber

For discussion of the drilling and shaping of the stummel.
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the rev
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how shallow can you make mortise and chamber

Post by the rev »

Two separate questions:

If I am using a half inch delrin tenon, which by its nature will have extra strength and grip, (more surface area) how shallow can I make the mortise in order to really get a deep bend? Is there a go no shallower than?

And I made a very small pipe, and the bowl is only about 3/4" deep, it seems really really shallow, is that too shallow?

rev
"but rev, isn't smoking a sin?"

well I suppose if one were to smoke to excess it would be a sin

"but what would be smoking to excess?"

Why smoking two pipes at once of course
caskwith
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Re: how shallow can you make mortise and chamber

Post by caskwith »

Deep enough so the stem don't fall out ;)
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andrew
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Re: how shallow can you make mortise and chamber

Post by andrew »

caskwith wrote:Deep enough so the stem don't fall out ;)
Excellent advice. Sticky this. :)

andrew
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andrew
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Re: how shallow can you make mortise and chamber

Post by andrew »

Just get yourself a lathe and ditch delrin :)

andrew
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d.huber
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Re: how shallow can you make mortise and chamber

Post by d.huber »

andrew wrote:Just get yourself a lathe and ditch delrin :)

andrew
Lol! Andrew is very pleased with his switch to integral tenons.
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the rev
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Re: how shallow can you make mortise and chamber

Post by the rev »

I have a lathe, and make some of my tenons integral, but I prefer delrin in most cases

rev
"but rev, isn't smoking a sin?"

well I suppose if one were to smoke to excess it would be a sin

"but what would be smoking to excess?"

Why smoking two pipes at once of course
wdteipen
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Re: how shallow can you make mortise and chamber

Post by wdteipen »

What Chris said on mortise depth. There's a ideal ratio between tenon diameter and tenon length where the thicker the shorter the tenon needs to be due to surface area. I'm sure someone has a mathematical equation for it if you're into that sort of thing. For me, I just shoot for 1/2" to 5/8" in most cases and call it good.

As for chamber depth, practically any reasonable depth will work. Pot smokers have been smoking their weed in shallow chambers for a very long time. As for what depth is BEST for burning tobacco I can't say but I don't like to go under an inch and tend to stick around 1 1/4" to 1 1/2" in most cases.
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LatakiaLover
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Re: how shallow can you make mortise and chamber

Post by LatakiaLover »

It is much easier to fix a broken tenon than a broken shank.

The best way to assure the shank will break instead of the tenon? Make the tenon short.

Here's why:

http://en.wikipedia.org/wiki/Lever

This pro-smoking Public Service Announcement was brought to you by the Don't Make Your Tenons Too Short Society
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andrew
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Re: how shallow can you make mortise and chamber

Post by andrew »

LatakiaLover wrote:
This pro-smoking Public Service Announcement was brought to you by the Don't Make Your Tenons Too Short Society
:)

andrew
E.L.Cooley
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Re: how shallow can you make mortise and chamber

Post by E.L.Cooley »

Well going with the theory of 1:1.62 is the most ideal and attractive value for everything. A 5/16" dia. tenon is .3125 multiplied by 1.62 would equal
.506 so by that formula half inch length is right on.


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PremalChheda
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Re: how shallow can you make mortise and chamber

Post by PremalChheda »

Chamber - Make it as long as it can be in the design of the shape.

Mortise - Make it as short as at has to be for a good fit.
Premal Chheda
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