fitting a delrin tenon?
fitting a delrin tenon?
ok, i'm having major problems with fitting stems with delrin tenons. i am working with a drill press and i make sure when i face the stem stock and drill the hole for the delrin that i do not move the rod stock or the vise holding it. and i repeat the process for the mortise, faced and drilled as one. but when i try to fit the tenon to the shank more often than not i am faced with a small gap only on one side. I'm not sure how i have managed to mess such a simple process up but I still do it time after time. im probably missing something extremely simple, so..... where am i messing this up?
- baweaverpipes
- The Awesomer
- Posts: 947
- Joined: Tue Dec 19, 2006 8:07 am
- Location: Franklin, Tennessee
- Contact:
Re: fitting a delrin tenon?
By using a drill press.Josh B. wrote:where am i messing this up?
- sandahlpipe
- Posts: 2106
- Joined: Mon Feb 04, 2013 8:49 pm
- Location: Zimmerman, MN
- Contact:
Re: fitting a delrin tenon?
Are you facing the delrin?
-
- Posts: 363
- Joined: Thu Feb 13, 2014 3:36 pm
- Location: Colorado Springs, Co
Re: fitting a delrin tenon?
Hey josh b. Does the gap repeat itself at the same position and size aprox.? What drill press are you using?
Sent from my banana phone.
Sent from my banana phone.
Re: fitting a delrin tenon?
im using a pretty cheap drill press and yes the gap is near exact everytime. its just a hairs width gap on one side every time
Re: fitting a delrin tenon?
and also yes i face the delrin and my stock looks good all my stem making stuff came from steve and i have had no problems with it at all except i just cant seem to get a nice flush fit
- sandahlpipe
- Posts: 2106
- Joined: Mon Feb 04, 2013 8:49 pm
- Location: Zimmerman, MN
- Contact:
Re: fitting a delrin tenon?
How deep is your mortise on the stem side? I could see it having more troubles if it's a short mortise.
Try shortening the tenon by just a hair and see if the gap goes away.
If it doesn't go away, you're probably facing with a dull tool. Sharpen it properly and then you can basically sand the shank face with the tool and a light tough. But only if it's sharp enough. Dull bits will leave gaps.
Sent from my iPhone using Tapatalk
Try shortening the tenon by just a hair and see if the gap goes away.
If it doesn't go away, you're probably facing with a dull tool. Sharpen it properly and then you can basically sand the shank face with the tool and a light tough. But only if it's sharp enough. Dull bits will leave gaps.
Sent from my iPhone using Tapatalk
-
- Posts: 363
- Joined: Thu Feb 13, 2014 3:36 pm
- Location: Colorado Springs, Co
Re: fitting a delrin tenon?
There is also the question wether the table is square to the bit. It could be out of square just a smidge. If you rotate the stem 180 does the gap move, increase, decrease?
Sent from my banana phone.
Sent from my banana phone.
Re: fitting a delrin tenon?
i thought it was my tools at first but after lots of time with a whetstone and buying a new forstner bit...no luck. as far as rotating the stem sometimes it will make it will solve it and sometimes it will only complicate things.
Re: fitting a delrin tenon?
Drill press is the problem, hobby ones have play in the table when a bit of pressure is applied.
- sandahlpipe
- Posts: 2106
- Joined: Mon Feb 04, 2013 8:49 pm
- Location: Zimmerman, MN
- Contact:
Re: fitting a delrin tenon?
Try using Ez-Lap Diamond Hones. They are much easier to use for sharpening drill bits of all kinds. If your tools are sharp enough, there should be no need to apply pressure enough to make the table wobble even on a poor quality drill press.
Having said that, you will soon find a mini metal lathe or a Taig to suit your stem work needs better than a drill press. But sharpening tools is the ticket here, I think. As long as your table and vise are square to the drill.
Sent from my iPhone using Tapatalk
Having said that, you will soon find a mini metal lathe or a Taig to suit your stem work needs better than a drill press. But sharpening tools is the ticket here, I think. As long as your table and vise are square to the drill.
Sent from my iPhone using Tapatalk
- PremalChheda
- Posts: 1213
- Joined: Sat Dec 11, 2010 6:03 pm
- Location: Columbus, Ohio, USA
- Contact:
Re: fitting a delrin tenon?
Make slower cuts. It is most likely play in the table when pressure is applied.
Premal Chheda
http://www.chhedapipes.com - Just for fun
http://www.smokershaven.com - New & Estate Pipes
http://www.rawkrafted.com - Pipe Making Tools, Materials, & Supplies
http://www.chhedapipes.com - Just for fun
http://www.smokershaven.com - New & Estate Pipes
http://www.rawkrafted.com - Pipe Making Tools, Materials, & Supplies