By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for jason udall

Here is a list of all the postings jason udall has made in our forums. Click on a thread name to jump to the thread.

<< First < Prev 96 97 98 99 100 101 102 Next > Last >>
Thread: Drilling Vise improvements question
20/01/2012 20:19:22
yet another tnread form...there are lots... Three "metric"
huge number of " imperial" bsw bsf unf unc lorenstoff....sorry best to say lots.
You will be unlikly to meet many more than two metric (course and fine) ba, whitworth and prob the me (model engineers) threads...DONOT AIM FOR COMPLETENESS that way lies madness..
Any way back to the vice..measure pitch measure core diameter of hole that will give someone here a chance to make sugestion as to what you are looking at...thread form(angle) will also help.
20/01/2012 19:49:37
clamp screws...avoiding the V word..are usaly acme thread..the thread form is rectangular unlike the vee form in iso or whitworth...I have seen heavily truncated ISO threads used in "asian" built stuff.
Thread: Loctite
18/01/2012 21:46:36
array of them actually on thick copper block ..and the hot side needed its own cooling too!
Thread: MEW 186, Best ever issue
18/01/2012 21:33:59
for my tuppence...I drive cnc at work..
I manual at home for the pleasure of the feel on the handles..(tiny light lathe.EMCO SL)
And the challenge of "so how can I do that"

Even going to try the clockmakers method..freehand with graver...
Depends what you after I guess.
Thread: Magnetic chucks on lathes
18/01/2012 21:24:09
with magnetic chucks ,you also need to consider pole spacing...you need to stradel a number of poles in the chuck... Work very well in grinders ,we add blocks to cover extra poles to act as extra lateral resistance
Thread: Stainless steel shaft
16/01/2012 22:27:28
.. [can not find way to delete duplicate post]

Edited By jason udall on 16/01/2012 22:33:24

16/01/2012 22:27:23
btw how out of round...guess enough to foul

We used to use "gauges" with tenth micron resolution with centerless grinding looked round on them but wouldn't turn between mic anvils.
16/01/2012 22:20:32
other smiths msybe local to you.
Thread: Turning very thin bar
16/01/2012 22:16:24
any way back to original post.
Like the first reply said... SHARP TOOLS
HSS for when carbide just wont do...!
Oh any cut SS very aggressivly...get under skin and dont let it work harden.
Odds is you 'rod' is wire and drawn thus work hardened...sugest starting from larger stock and turning off outside to get at tamer metal. Say start at three mm big.
16/01/2012 22:07:13
one problem with these " box tools"
They copy the incoming stocks variation onto finished diameter.
Thats part off why sliding head machines use ground stock.
Once had to turn 6.5 to 1.2 mm taper over 150mm.
So far so good.
Stock was Nominally 6.8mm 0.8 mm hole down middle "sort of"
And worst.stuff was poly ureathane..you could tie it in knots....

Thread: Stainless steel shaft
16/01/2012 21:49:36
maybe
smiths metals? Poole 01202893712
RS? 01536 201201
Rs may be better free del.
Smiths cheaper by foot but add carr...
Thread: Laser centreing
15/01/2012 21:05:44
ah..diode assy. swings on horizontal axis like pendulum..misbalanced thus "centifugal" force tips diode etc over.
Prefer fixed angle and change "ride height" to change ring diameter...still good idea

Thread: ME Shows
15/01/2012 19:46:46
Thanks again. Weymouth is on doorstep.
Will look into that.
Thread: Drilling Vise improvements question
15/01/2012 19:39:49
As to spelling.
I care more for meaning than spelling.
With a side of taxomonany...
15/01/2012 19:16:06
"Alabama?" lol
Thread: Loctite
15/01/2012 19:14:17
sorry 15kJ and 30s
15/01/2012 19:13:06
pump was half kilowatt so maybe took longer than I remember..1.5kJ/K for can so for 10 kelvin about 14kJ 500 Watts would be 28seconds.
Thread: Laser centreing
15/01/2012 18:56:46
huh? "adjust the circle diameter by changing the spindle speed"
REALLY want to know how that works....What rpm you got that can cause relativistic effects on say 1m radius.
Thread: Anyone willing or able to cast a small Top Hat ?
15/01/2012 18:45:12
silicon rubber to make mould from original
Metal clay into mould
Dry clay into kitchen oven...
Metal part out of oven..
Thread: ME Shows
15/01/2012 18:27:32
thanks David

Like you say..shows ...Taunton might be a goer but looking for club close enough for meetings.
<< First < Prev 96 97 98 99 100 101 102 Next > Last >>
Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

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

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

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.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate