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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: Squealing motor
07/08/2018 07:29:44

Brushes need attention maybe?

Thread: MS 3mm x 25mm rivets?
04/08/2018 08:38:17

Thank you people, I shall report back.

04/08/2018 07:45:41

A friend is looking for some 3mm x 25mm MS or soft iron rivets.(or 1/8 x1" )
None of the usual suppliers seem to stock them any more?
Anyone know a source either mainland UK or Eire?

Edited By john carruthers on 04/08/2018 07:45:58

Thread: What did you do Today 2018
31/07/2018 08:35:22

Nice Dob Neil, good size for light grasp and portability.
I use my homebrew 10" F6 more than the refractors.
First light yet?

Thread: Homemade Grinder Advice
19/07/2018 08:33:44

Yes, I use a diamond wheel for tool grinding, mainly carbide tools but most things in my shed get a touch at some time.

Have you looked at the battery powered grinders available..? maybe something could be adapted?

**LINK**

We had a little homemade grinder 'out the back' in our old works, it was rescued from a skip.
It was made from a Picador spindle and a little 1/4 hp motor, only took 4" wheels.
The main problem was keeping grit out of the bearings, the shaft rattled around like a stick in a bucket.

Thread: Any tips for Machining (turning down) a Hardened (60c) shaft on a Myford 7
12/07/2018 08:20:30

60c shaft, was it induction hardened? could it be annealed?
Sounds like you'll be removing the hard case anyway?

Thread: How can I drill a deep, non-standard, small diameter, hole?
09/07/2018 08:46:03

I bow to greater knowledge and experience but I would drill to say, 0.25mm with a commercial bit, then make a finishing drill from a suitable sewing needle?
Failing that, broach it out to a fit ?

Thread: Milling table regrind
06/07/2018 08:22:35

Any engine recon firms near you?
Our local firm shut down after trading for three generations. Very little they couldn't do 'for a drink' - probably why they closed? :-/

Thread: Clock making for the penniless?
03/07/2018 08:55:41

My first foray into clock making was the Dark Lady project covered in the 'Clocks' forum.
Mine was made from scrap mostly with just a few materials bought as I went along.

Thread: TAP AND DIE SET
27/06/2018 09:02:26

I bought a cheap set from Aldi, still going well after 6 years (1 M3 tap replaced)
Not absolute top quality, but only £13 at the time.


Thread: Another bandsaw blade question
25/06/2018 09:19:09

I am sure TuffSaws would have something, I have always found them most helpful.
**LINK**

Thread: Oil for micrometers
23/06/2018 07:12:29

I have used the 'dry' ptfe spray with success. Nothing to oxidise and it gives a good 'feel' for me.
Price varies from £3 to £30 per can, I happened to have some wd40 ptfe in the shed left over from a job.

Thread: Meteor detecting
18/06/2018 07:46:58

Have you tried it on Jupiter yet Neil? or the sun?

Thread: The Workshop Progress thread 2018
13/06/2018 08:36:51

A quick soak with oven cleaner?
Don't leave it on ally too long.
(and don't ask how I know this)

Thread: Governor pulley belt
13/06/2018 08:11:18

You might try a cassette tape recorder (or vhs recorder) drive belt?

They come in all sizes, in square or round section.

I used one on Lady Stephanie for the governor drive.

Thread: The Workshop Progress thread 2018
11/06/2018 08:25:29

Nice Crayford Neil, shame John Wall isn't around to see it.

Thread: Grinding flat, not curved, relief angles on HSS lathe tools
11/06/2018 08:11:18

A belt sander will flatten a slightly curved tool face, if you need to, or an angle grinder.

Thread: steambox for ply
09/06/2018 09:03:46

We used a large oil drum to bend 2x 8mm marine ply for shields, pushed steam from a wall paper stripper in one hole and out the other.

Thread: Metal combinations for a plain bearing
06/06/2018 08:59:33

to add to the mix; how about miniature split bearings that could be tightened as required? could be as simple as a V and a plate?

Thread: Clean hands?
26/05/2018 08:34:26

As kids we always came home covered in beach tar, butter would dissolve it in no time .

Swarfega with a handful of sand chucked in the tin will move most stuff.

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