Help cutting an O ring grove

[mike-sid]

Tom, thanks for your advice, that was kinda my plan but I wanted to get advice and ideas, which I did. The most useful might be to make a square land for the O-ring. That makes great sense. Thanks to all and feel free to add your two cents!

[PixMan]

Mike, the 2mm inserts you have don't have the radial clearance needed for that small of a face groove. They are too tall.

I use Micro 100 (brand) solid carbide grooving tools. They are made for the task. Also, be careful with the depth. I don't know the material of the O-ring you have in mind but most are firm enough that only .005" to .007" squeeze is all you need. There are charts for the recommended squeeze on a given cross section size of the O-ring, I'll see if I can find one. The chart I use is a dog-eared card I have with the big box of O-rings I have at the shop... and I'm at home.

This site seems to be a cornucopia of O-ring information.

http://www.columbiaerd.com/seal_design.html

[mike-sid]

Well, I did the job before I red Ken's reply. I think I did OK. The tubes are made to drop in as is, but that was not good enough for me. The O-ring is just to hold the tubes snug to prevent the annoying rattle. Here are some pictures of the job. I first mocked up a section of the tube and put an O-ring on it to check for fit and final dimensions, since I kinda winged it.

[PixMan]

FWIW Mike, I've had trouble with Photobucket links today too. On one of the audio video enthusiast sites that I now spend (too much) time on, I had posted photos of a tidying up of the wiring behind my AV stand that I did today. Being a different forum software than is used here, the error message was different but the result the same...no pictures appear. And I posted them exactly the same way I always do.

I'll try posting one here now, here goes (caution, if it works it's completely off topic):

<deleted>

Nuts. Same result. It's a problem with Photobucket. I just tried looking at these posts on this site using 3 different browsers, IE11, Firefox 45.0.2 and MS Edge. All show the same issue so it must be Photobucket.

Searching the web, Photobucket is definitely having a problem! This is very bad.

Well, some hours later and a posting on the Photobucket Facebook page...they fixed it! Whew. All your photos are showing now, I deleted mine as it's out of context.

[mike-sid]

(04-25-2016, 09:16 PM)PixMan Wrote: FWIW Mike, I've had trouble with Photobucket links today too. On one of the audio video enthusiast sites that I now spend (too much) time on, I had posted photos of a tidying up of the wiring behind my AV stand that I did today. Being a different forum software than is used here, the error message was different but the result the same...no pictures appear. And I posted them exactly the same way I always do.

I'll try posting one here now, here goes (caution, if it works it's completely off topic):

<deleted>

Nuts. Same result. It's a problem with Photobucket. I just tried looking at these posts on this site using 3 different browsers, IE11, Firefox 45.0.2 and MS Edge. All show the same issue so it must be Photobucket.

Searching the web, Photobucket is definitely having a problem! This is very bad.

Well, some hours later and a posting on the Photobucket Facebook page...they fixed it! Whew. All your photos are showing now, I deleted mine as it's out of context.

I missed all that! I did not know that my pictures weren't showing up. Ignorance is bliss, that's why I'mso happy. Lol