I need a simple 101 in cutting small brass tube accurate
jason udall | 26/05/2015 15:55:09 |
2032 forum posts 41 photos | What I don't seem to be communicating is the roll ing of the tube under a simple knife blade.. It leaves a cut that normally needs no further deburr...think of the knife blade in a plumbers tube cutter.. |
JasonB | 26/05/2015 16:28:25 |
![]() 25215 forum posts 3105 photos 1 articles | Communicated to me OK Something like this, alter the rebate to give the length of ring needed then just hold it on the end of the tube as you roll it along the bench |
jason udall | 26/05/2015 16:36:10 |
2032 forum posts 41 photos | Jason B.. Thats a way... And what I shoud have suggested for this application. I had this idea of seperating fence from spacer so spacer could be changed..for different lengths Over complex.. Now how about one that does ten at a time ![]() |
JasonB | 26/05/2015 16:45:07 |
![]() 25215 forum posts 3105 photos 1 articles |
No problem, thickness of a stanley blade should be about right |
jason udall | 26/05/2015 17:33:49 |
2032 forum posts 41 photos | Gosh..just like I suggested two pages ago |
Neil Wyatt | 26/05/2015 18:21:41 |
![]() 19226 forum posts 749 photos 86 articles | Problem with that is if the rings don't part off in order... Neil |
Neil Wyatt | 26/05/2015 18:25:50 |
![]() 19226 forum posts 749 photos 86 articles | This is the jig from Expo I am trying out: It is nicely done and very much like those Jason suggests. The commercial ones will tackle a wider range of tube sizes. But sawing off 700? rather you than me! Neil |
Izack Madd | 27/05/2015 02:18:46 |
105 forum posts | Thanks for all the brilliant ideas which I'm certainly going to be trying in one combination or other. I really do appriciate all the suggestion but there are too many to name but I would like to thank JasonB and Jason Udall for showing such teamwork. One comes up with the ides and the other draws it out. |
jason udall | 27/05/2015 09:47:18 |
2032 forum posts 41 photos | Another thing that comes to mind.. I never had any trouble with "not parting off in order".. so it never needed solving ( for me) But , and inhind sight might keep the parted off parts under control, if you thread a thin wire down the tube first..knot either end...the parted off bits stay together while you work.. Oh...futher thought...what about watch/clock bushes...you can buy these in such a variety of sizes. ...just a thought. |
Neil Wyatt | 27/05/2015 20:10:02 |
![]() 19226 forum posts 749 photos 86 articles | Or what about punching them out of brass plate...? Neil |
Michael Gilligan | 27/05/2015 20:39:09 |
![]() 23121 forum posts 1360 photos | Posted by Izack Madd on 24/05/2015 22:42:04:
... brass tube 2mm OD and 0.3mm wall thickness. ... slices of said tube 0.5-1mm long. . Neil , Can we assume that punching this shape out of plate is another of your little jokes? ... especially given the tools at Izack's disposal. MichaelG. |
mechman48 | 28/05/2015 10:03:45 |
![]() 2947 forum posts 468 photos | Izack Found this on another forum... it might just be what you are looking for George. |
JasonB | 28/05/2015 10:16:12 |
![]() 25215 forum posts 3105 photos 1 articles | Izack does not have a lathe |
Izack Madd | 28/05/2015 11:50:01 |
105 forum posts | Posted by JasonB on 28/05/2015 10:16:12:
Izack does not have a lathe I'm sure you've got me wired for sound or video as well as you keep saying what I'm thinking. 😜. You're right I've not got a lathe but I do have a drill and may be able to adapt that idea but a lot slower. But thanks for the comments as I'm never to sure if people are serious or joking when they offer this sort of techno strong advice.👍 |
Neil Wyatt | 28/05/2015 14:38:47 |
![]() 19226 forum posts 749 photos 86 articles | Not at all, I'm assuming these a re dummy pulleys so the I/D of the brass disc isn't critical, in fact it might be easier to fit a disc than a ring, I assume the choice of a tube rather than rod is just to make cutting easier? neil |
JasonB | 28/05/2015 15:17:23 |
![]() 25215 forum posts 3105 photos 1 articles | From earlier posts it would seem the smooth surface of the tube was desirable for the rigging to run against, a punched out disc or washer would have quite a rough surface. Tube was just easier than solid rod. |
Izack Madd | 28/05/2015 15:50:46 |
105 forum posts | Posted by Neil Wyatt on 28/05/2015 14:38:47:
Not at all, I'm assuming these a re dummy pulleys so the I/D of the brass disc isn't critical, in fact it might be easier to fit a disc than a ring, I assume the choice of a tube rather than rod is just to make cutting easier? neil Hi. The choice of tube was pure mathematics. I had some tube i didnt have anything else ☺ None of the dimentions are crutial. What im after is a simple way of repeatedly and easy method of cutting a load of rings. Ideally something i can pick up do a dozen or so then do something else. Its just the repation and force required thats the big issue. The repatition i cant avoid but i was hopeful there was a simple force free or less than i was using. The other benefit of using tube is the fact that the surface is smooth. Then even if the wheel fails to turn the slick surface allows for a smooth slide. And if i needed i can evev add a curve to the outer surface by putting the rings between two centre punches. AKA as masonry nails ground to a flat point. This would only be where the wheel is truley visable. One other option i do have is copper capillary tube 2mm OD x 1mm ID would this be eaisier to cut? |
Izack Madd | 28/05/2015 15:52:39 |
105 forum posts | Posted by JasonB on 28/05/2015 15:17:23:
From earlier posts it would seem the smooth surface of the tube was desirable for the rigging to run against, a punched out disc or washer would have quite a rough surface. Tube was just easier than solid rod. Hi your right about the surface and i had the ube and had no rod. Its the method i was hopeful of improving but effort and safety. |
Izack Madd | 28/05/2015 15:59:01 |
105 forum posts | With a bit of luck i may have solved the issue another way as ive ordered some jewelry spacer beads 1.5mm x 1.5mm. Unfortuntly they are from china. So not only do i have to wait while they crawl here. Ive no idea of quality. Or even whe=at they are made of. I had one set of brass seed beads come that i was wanting to flaten for another project only to find out they were made of glass. Not easy keeping the dust from disapearing every time you hit them with a hammer 😉 |
Gordon W | 29/05/2015 09:27:35 |
2011 forum posts | Just a thought- would plastic tube do the job? Lots of sizes and materials. Easy to cut. Edited By Gordon W on 29/05/2015 09:27:59 |
Please login to post a reply.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
Sign up to our newsletter and get a free digital issue.
You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.