Here is a list of all the postings duncan webster has made in our forums. Click on a thread name to jump to the thread.
|Thread: How badly do I need a surface plate?|
There is a reasonable size surface plate on homeworkshop at a very good price.
|Thread: Unknown object|
Why silver steel, no strength required
|Thread: Wiggler or edge finder?|
The type c edge finder uses a lot less daylight than the wiggler, in fact with a round column machine I found the wiggler nearly impossible to use as you had to shift the head to get back to using a cutter. I've got a machine with a knee now, but more often than not I just turn the cutter to an appropriate angle, shine a torch into the gap and watch from the other side as I bring the job into contact. Not as accurate, but a lot faster
|Thread: Cruise meeting crash|
I've actually looked at the footage, he didn't look to be going that fast, certainly not racing, someone pulled out in front of him. I don't see the attraction of this kind of event, but not everyone shares my interests. What happened to live-and-let-live?
|Thread: GT3 timing belt|
I've just spent hours trying to find a supplier and you find on in minutes! I obviously need to go on a Googling course.
I'll be on the phone to them directly,
Anyone know where I can get GT3 5mm pitch timing belt pulleys in UK? They have better load capacity than HTD, so I can use 9mm wide belt.I'm looking for 30t and 60t, and a belt of course
I've tried Misumi in Germany, they won't deal with private individuals
|Thread: Regulator improvements|
here's a photo of one I saw on a club stand at Doncaster 2109. Unfortunately I didn't note which club, it might be worth contacting the Sweet Pea owners group. I used to be a member but then it went over to facebook and I refuse to have anything to do with social media (possibly because my missus says I'm anti-social) . It appears to be fed off the turret. If it's made to the original you can't get the bent pipe out, You could drill it out but that would leave the bent bit loose in the boiler. If you manage let us know how
If it's made to the official drawings, the regulator is fed from a bent pipe which is cantilevered from the backhead, with as said above, a row of holes in the top side. It is always possible that this pipe has drooped, either whilst silver soldering the backhead in place, or some other reason. Trouble is you can't see it unless it happens to be right under the safety valve holes. I made mine deliberately offset by a tad. If I were still in gainful employment I could have borrowed a boroscope to poke down one of these holes, with a light down the other, but I'm not so that isn't much help. You might get somewhere exploring by feel with a bit of bent wire, but I wouldn't bet the farm on it.
Pre-judging the situation, if this is the case all is not lost, you could mount both safety valves on a tee off one hole, and feed the regulator with a looped pipe from the other. Before I stopped the regulator leaking, I considered doing this with mine so I could use a ball valve .
|Thread: Myford ML7 tailstock bore, and threading the barrel to fit a chuck|
How about a chuck bolted to an angle plate which sits on the saddle. The angle plate has a hole in it to allow the bow to poke through. To align it put a bit of bar with a centre in the chuck and move the cross slide till a centre in the tailstock goes in, then lock the cross slide. First time you have to fiddle about to get the height right, but once bolted up that is fixed. Sounds a lot easier than modifying a tailstock, and will accommodate bigger bows
|Thread: air blast cooling for mill - solenoid control ?|
So give us a link to the 'cheap air blast unit', re-cutting chips is a serious cause of poor surface finish in my opinion
|Thread: MEW 283 Electronic Leadscrew link|
Just in case Joe misses this thread, the encoder you need for the spindle has to have A, B & Z outputs, the Z is one pulse per rev. The one I've fitted is B E6B2-CWZ6C 1000P/R
|Thread: broken myford changewheel|
Thanks to Simon's efforts the encoder drive pulley has now been bored and keywayed. Attached photo shows it in position, the encoder mounting bracket is bolted to the gear-change quadrant. The belt is made of paper, just to get the right length, a real one is on its way! The paper one but I don't think it would last very long.
|Thread: A puzzling design in Nurnberg museum|
There's one on a roundabout in Irlam
Edited By duncan webster on 09/07/2019 14:34:04
My niece once had a job with John Smiths trying to get pubs to sell that Extra Smooth stuff. She left after I told her that in my opinion, as an experienced beer drinker, it was specially brewed for people who didn't like beer
|Thread: Stuart No. 2 centrifugal pump - machining help needed|
Another is to clamp a bar across the bed at the correct angle, arrange a follower on the cross slide to rub against it, then feed the cross slide whilst keeping the follower against the bar with the saddle hand-wheel
|Thread: Classified For Sale|
Well I take my stuff off when it sells, just taken the 3D printer ad off, sold really quickly.
Edited By duncan webster on 03/07/2019 15:33:28
|Thread: Thread Bare|
If you really want to make studding rather than making new bits with M6*1 thread, the consider making a diestock which you can clamp in the tool holder. Adjust height and in/out to get it central. Set the change wheels or gearbox for the right pitch and away you go. Doing it as shown in the video will almost certainly result in pitch error, which might not matter of course
|Thread: Snail Problems|
If your dog is partial to eating slugs make sure he/she is dosed against getting lung worm. Most distressing and incurable according to our vet.
|Thread: Annealing stainless steel|
Sounds like a job for a spark eroder. Not too difficult to make, see **LINK**
|Thread: broken myford changewheel|
I've taken up Simon's very kind offer, but thanks for all the other suggestions
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