Here is a list of all the postings Martin Brundell has made in our forums. Click on a thread name to jump to the thread.
|Thread: Why is it so hard to find materials in the UK?|
Thanks for all the suggestions - I will get onto them tomorrow.
I have been looking to buy some grade 2 Titanium tube at 38mm (1 1/2) and 31.75mm (1 1/2) with a wall thickness of 3mm (approx) and boy what a job it's turned out to be. No one (apart from a firm who want £140 a metre for grade 9) seems to have any in the UK. A friend got some 31.75mm ti earlier this year for approx £35 a metre which was a good price.
So then I started looking at high grade aluminium e.g the same OD with a slightly higher wall thickness in 7075-T6 aluminium and I hit the same wall...
Now of you go to China, USA, Germany, Russia and any number of smaller Countries you can get it - but not the UK.
Does anyone know of a decent supplier for either of these? I initially need a few metres for stress/pressure testing then a bigger order.
|Thread: Bench grinder/polisher/shapener advice|
Edited By Martin Brundell on 16/05/2011 13:33:40
Edited By Martin Brundell on 16/05/2011 13:34:13
Thanks for the reply or though i dont quite understand the harrogate quote?
Looking to buy a Bench grinder for my small workshop - has anyone got any recommendations?
I want it primarily for sharpening hss drillbits, grinding and polishing.
Any help will be appreciated
|Thread: WM280VF Fixed steady|
Perhaps because they sell their verison of the wm280vf not supplied with the steadies, then sell them on for extra?
Yep - I saw the same thing and double checked with him. They havent actually got the 280 fixed steady listed, but it was the same price
Update: Emails Warco and they wanted £65 + £7.50 p&p + vat
= A total of £85.50 for the fixed steady..........
Rang AMADEAL and they wanted £19 + £9.50 p&p inc vat = total £28.50
For EXACTLY the same part.
Got some moxy those Warco chaps. Needless to say i got the warco one.
|Thread: X1 Mini mill belt conversion in the UK????|
I was after one of these http://littlemachineshop.com/products/product_view.php?ProductID=3488&category=1057823482 but they are from the USA anyone know where I can get one in the UK?
|Thread: Internal threading on Alu tube problem.|
Right great thread and thanks for the info - working on it now.
Right got it as I have seen the adjuster on the boring head thanks
Do you know anywhere that does a straight boring head arbor?
brill thanks again
Trying to digest this - i get the idea of the tube locked into a wooden holder on the slide (ingenius) - however struggling with the boring tool holder. Does that actually spin in the headstock? How do you change thread depth?
Edited By Martin Brundell on 03/05/2011 21:02:12
Hi, got a bit of a problem I need to find a solution for:
I have several 350mm x 38mm OD x 35mm ID Aluminium tubes that I need to put a 0.75 metric thread inside the ends (10 - 15mm depth). I have a wm280VF lathe that only has a 26mm spindle bore.
I dont currently have a fixed steady (looking to get one) but even if I did would it help?
Advice please on the best approach as I have never done anything like this before. (I've threaded externally and internally on small stuff using the lathe)
|Thread: Cross slide lifts when parting off|
Brilliant Jason - thank you
Thanks to all for your suggestions and help - I've cracked it!!! (well you cracked it)
Took the crossslide off cleaned up and re-seated, upped the speed to 250rpm - this alone helped, it worked 50% better after that but still flexing slightly.
I then reduced the tool overhang and made sure the toolpost was more central. 75% better.
Then I inverted the parting tool, reversed the chuck rotation - 85% better
Then I dug out my carbide tipped parting tool (3mm tip) that I have never been able to use because it chattered like a bugger, inverted. PERFECT - went through it like butter!!!
Thanks again for all your help - I am a happy bunny again!
PS has anyone got a turning speed chart for EN1A - 303 free cutting stainless etc in RPM??? All I can find is metres or feet and I can't find out how to translate.
Again thanks, it really is much appreciated
|Yes this is the exact machine I have|
Edited By Martin Brundell on 03/05/2011 14:08:19
Hi Jason, my cutting blade is 2mm and is square (I square it with the chuck face).
500rpm - I can only dream of parting off at that speed LOL
I will take the cross-slide off tomorrow and clean it all out - thanks for the tips.
BTW thanks for the replies - I am taking it all in slowly.
Been at it all day so going to try again tomorrow now. It just seems like the gibs mechanisn isnt doing much apart from making the cross-side stiffer to operate, it does not seem to be locking the topslide down much at all.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
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.