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Member postings for john carruthers

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

Thread: The Workshop Progress Thread 2019
30/04/2019 08:44:53

The new shed/workshop is finally erected, I've been aiming for a better set up since we got here last October.
8' x 10' from ShedsAhead of Port Talbot who did the installation.
Because of the slope and underlying limestone it sits on 18 4"x4" piles.

Next the power and light, then the benches. I've been saving the old kitchen units and worktops for this job.

new shed - copy.jpg

Thread: Backlash
21/04/2019 11:43:40

The usual solution for this, when using astro telescopes, is to incorporate an absolute encoder to see actual movement rather than rely on step counting.
The cheapo diy version uses an old mouse encoder wheel.

Thread: Notre Dame
16/04/2019 08:25:01

Before the big footed structural guys get in there to shore it up, let the glaziers pick over the rubble.
Sort each fragment of glass into seperate boxes marked with the position found.
More importantly what depth or layer it was found in.
The drafts in a fire can suck fragile glass from one end of a church to the other.
We found that out after the York Minster fire

Thread: Dialect expressions
14/04/2019 08:53:21

In the (former) Kent coal field there's a mix of Welsh, Yorkshire, Gerodie and Kent spoken.
In a study by the local uni Aylesham was found to have a distinct dialect of its own.
Alleys are 'jitties'. Lunch taken to work can be 'snap' , 'bait' or 'scran'.

Thread: seals for mini lathe tapered roller bearings?
02/04/2019 09:10:51

I read that the original mini lathe design was of Russian origin and used TRBs. The later Chinese version used ball races.
Maybe an old drawing could be tracked down?

Thread: Chinese 7x10 lathe
31/03/2019 09:44:50

+1 for the 16" sc3.

Thread: Glazing Bars
30/03/2019 09:21:31

Bit late spotting this one. I had to make 2 long clock cases in the glass works for the local time ball tower collection.
I used a 5/16 'bird mouth' hardwood moulding on the corners and 2mm picture glass for one.
The moulding could be made up from 3 x quadrants ?

3/8 x 3/8 brass angle, mitred and soldered for the other.

Thread: new workshop
28/02/2019 10:07:46

CAV installed new machines which upset the neighbours. We fitted tripple glazing and the walls and ceiling were foamed.
Still the noise travelled to the neighbour's houses.
Various materials were tried as insulating blocks under the machine feet, but eventually balsa wood was judged the best in this case.

Thread: Greetings!
23/02/2019 08:35:25

Welcome Justin, lots of ATMs on here.

Thread: Hi from Deal
12/02/2019 08:43:46

Hi Dave, I recently moved away from Eastry to south Wales.
If you are looking for scrap pieces and off cuts try the scrap man off Poulton Close,( Coombe valley road).
He will let you root through the non ferrous bins and sells by weight.

Thread: Hi from Kent
12/02/2019 08:34:59

Hi Ricky, I just moved from Kent, have you seen the mill in classifieds at Gillingham?

Thread: Storing small lengths of steel stock
09/02/2019 07:52:51

I find a damp cardboard box held together with duct tape works well and it deters potential thieves from trying to carry it away.

Thread: New member (South Wales)
06/01/2019 08:43:58

Hello Steven and Richard, I recently moved to Margam from Kent and am hoping to get my shed set up in the next few weeks.

Thread: Lady Stephanie
04/12/2018 09:06:09

I have - somewhere...
We recently moved and my shed is in boxes still.
A new shed is on order so it shouldn't be long now.

Thread: Solar Tracker designed in Alibre Atom3D
02/12/2018 08:33:31

When I first started astronomy I used a mechanical time switch on a hinged board for very crude tracking.
Not the most accurate but smoother than hand driving a Haig mount.

Thread: Cost effective way of measuring 90degrees very accurately on Milling machine
02/12/2018 08:26:24

For an accurate square I use old optical prisms for 90d and 45d.
Even the worst prisms these days are quite good +/- 2 arc min surface 1/4 wave, while the better ones can be +/- 2 arc sec with a surface better than 1/20 wave.


Thread: Todays Mystery Objects?
27/11/2018 09:02:47

Ship's logs maybe ?

Thread: Mini-lathe dying..?
25/11/2018 08:56:27

I fitted one of Arc's lead screw grommets...

Thread: Used Flexispeed
25/11/2018 08:38:47

Beware of a Meteor II that has been over revved, the plain bearings don't like it.

Thread: 'shop tip from 1921
25/11/2018 08:35:40

Sawdust sweepings from the joinery shop floor would be cast into the iron stove, the lid jammed on quick and a concrete block hastily placed on top.
The resulting crown fire would procede along the ducting and shoot forth singeing the hapless joiners who had carefully directed the hot air vents toward their work stations.

Edited By john carruthers on 25/11/2018 08:36:02

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