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Member postings for Gary Wooding

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

Thread: Unkown plastic
08/07/2020 09:42:57

My wife has an empty cosmetics jar. It's quite small and looks and feels very much like cut crystal glass. The fingernail test says glass, but the tooth test says plastic. Any idea what it could be?

Thread: Amazon Prime scam?
08/07/2020 09:34:42

My phone and internet are from TalkTalk, both of which work fine. The phone has an optional, free, call screening facility. Calls from whitelisted numbers are passed normally, all others must state their name which is passed to me when I answer. I can then whitelist the number by pressing 1, accept it this time only by pressing 2, or rejecting it by pressing 3. Since using the service I've had almost no spam or scam calls.

Thread: Mill
07/07/2020 09:32:06

As a teenager in the 50's I remember a shop sign (outside a tailor's I seem to remember) that said 'Quality is remembered long after price is forgotten'.

Thread: Broken drill bit in hole
06/07/2020 15:08:56

Sorry to disappoint. Making small tube is not difficult, just time consuming.

06/07/2020 10:58:25

NDIY.

I made the tube from 0.5mm sheet, which I first rolled down to 0.25mm and cut a strip just a little wider than the circumference of the required tube. I cut one end of the strip into a 'V' and then used a swage block, and a series of suitably sized rods, to bend the strip lengthways into a 'U' shape. The end of the 'V' was then poked through a suitably sized hole in a draw-plate, and then pulled through to start closing the 'U' shape into a circle. Smaller and smaller holes were then used until I had a hollow tube - albeit too large an OD - which I then soldered along the seam. I then used smaller and smaller holes in the draw-plate until I reckoned it was just right for inserting the iron wire. With the wire inserted I could then continue using smaller and smaller holes until it got to the required OD. After a final annealing I could then coil the tube around a former to make the required helix.

Acid then got rid of the iron core.

Thread: Centering Microscope
06/07/2020 10:38:37
Posted by Michael Gilligan on 06/07/2020 08:07:26:

Have a look at this, Mark : **LINK**

When I was in my teens, and blissfully unaware of the problems, I dismantled a pair of binoculars to clean them. Even now, many years later, I well remember the frustrating days I spent re-aligning the prisms. But I eventually managed it.

Thread: Broken drill bit in hole
05/07/2020 07:21:01
Posted by Tomfilery on 11/12/2019 11:17:48:

Garry,

As you are making a boiler, and therefore have pickle for cleaning it up, just put your boiler in the pickle and leave it overnight. You will likely find your drill will have disintegrated, or can readily be removed the next morning.

Using pickling acid will certainly do the job without harming the copper. Heat it up to speed the process.

I once made some earrings from 1.5mm OD gold tube. The tube was made with a core of 1mm iron wire to support it when it was coiled to make the helix required for the earring design. The iron core was removed by immersing the helix in 10% H2SO4. I had to heat the acid, but it still took about 2 days to remove all the iron.

Thread: Old School Drawing Exercises and 2D CAD
04/07/2020 12:50:20

Here's a test that might be of interest. The yellow spot indicates a tangent.

cad drawing test.jpg

03/07/2020 14:10:01
Posted by SillyOldDuffer on 03/07/2020 13:55:13:

Once the approach is explained, easy enough to do manually, with Qcad, or with any other competent 2D CAD package. Not sure about FreeCAD & Fusion360's sketch tools for this particular job. They might not have the 2D primitives needed to construct the curve. (I haven't checked.) They can both do spline curves, but in this example it might be easier to construct the outline in 2D CAD and import the answer rather than sketch it.

Dave

My effort was done with Fusion sketch. What's wrong with it?

03/07/2020 13:54:44
Posted by Neil Wyatt on 03/07/2020 12:57:44:
Posted by Georgineer on 03/07/2020 12:26:27:

This thread is taking some very interesting directions. Keep it up, lads!

And Neil,your knurler looks useful. Would it make a suitable subject for MEW?

George B.

It's not mine, it's Gary's!

Not 100% sure but I think the design looks familar.

Neil

It was published in issue 72 of MEW, called Yet Another Knurling Tool

03/07/2020 13:45:41

How about this?

mecadprob2.jpg

02/07/2020 13:37:52

Sorry Barrie,

I don't see how that works.

I tried it in CAD and the final circle, whilst tangent to the base, doesn't touch the other two sides.

me cad2.jpg

02/07/2020 12:22:41

I made this knurling tool some years ago and kept it in a cupboard together with 4 pairs of different knurls in a plastic bag. I often toyed with the idea of making a fitted box for it, but was put off by the awkward shapes. Eventually I bit the bullet, designed the 3D model in Fusion and am about to 3D print it.

2D CAD would have been very difficult.

knurler.jpg

knurler box.jpg

02/07/2020 10:34:32

No CAD, no compass, no ruler, just pencil and trig.

Do I get double points?

me cad.jpg

01/07/2020 14:09:29

Pretty easy with Fusion, and the areas are equal.

mecadprob.jpg

Thread: Free or inexpensive 2D cad for clock wheels
30/06/2020 16:43:32

You could probably get an old copy of TurboCAD PP on the cheap. This was done in TCAD V16.

tcad wheel.jpg

Thread: Comparative Strength of Loctite
22/06/2020 14:48:54

It would interesting to compare with epoxy and superglue.

Thread: Digital angle gauges
22/06/2020 14:33:21

Just to put 0.1 degrees into perspective. When using a 5" sine bar to set an angle of 45 degrees, a 0.1 degree difference would translate into a height difference of about 0.006". For 10 degrees it works out at about 0.0085", and for 70 degrees, about 0.003".

Thread: Constantly Having To Log In To The Website
22/06/2020 09:49:04

This has also started happening again with me.

Sometimes, when I login, I have the option 'remember me', and other times not. It seems to me that, if the option was provided, and I use it, then I usually stay logged in for a while. If it's not available then the login is temporary. The last couple of times I've had to login the 'remember me' option was not available.

Thread: Weeds in a 'lawn'
21/06/2020 16:25:04

After I cut the 'grass' last week I Weedoled it, but the unwanted flowers have re-appeared. I'll try cutting and Weedol again tomorrow - if it doesn't rain.

It's probably apparent that I'm definitely not a gardener.

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