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Member postings for peak4

Here is a list of all the postings peak4 has made in our forums. Click on a thread name to jump to the thread.

Thread: Accurate blind hole in brass disc.
19/07/2023 01:11:05

Do bear in mind I've never received much formal training on this sort of thing.
I suspect the slot drill wasn't held either rigidly enough or central enough.

Last time I did something similar, I held an undersized slot drill in a boring bar holder in the toolpost.
Make sure it is central to the axis of rotation and also with the front cutting edge at centre height, just like a normal cutting tool.
Wind the slot drill into the workpiece, just like you would from the tailstock, and then outwards towards you until the hole is the correct diameter.
A carriage stop might be useful to get the depth spot on when re-cutting after measuring the diameter.

Bill

Thread: Travelling Microscope Query
18/07/2023 20:33:06

Our friendly courier dropped me a parcel off this morning.
I spotted an interesting item up for sale, and had an offer accepted, so I've ended up with a measuring microscope, as in this photo; micrometer head and scale is metric.
I've not taken any pictures of it myself yet, so this one is from the original advert, just to show the layout.
It will stand as shown, on its back, or on one end.

microscope.jpg

Everything appears to work as it should, though a clean and polish will be in order soon, but I have a query regarding focussing, as I'm no expert on microscope/telescope optics.
Though not obvious from this one photo, the microscope tube works like a draw telescope, and extends to a marked scale, up to 200mm.
The closest I can get it to focus with the current optics, is about 13" from the objective with the tube at full draw, well beyond the 200mm marking on the top tube; I really need to get it down to about 2½", to be in the same plane as the table on which it would stand.
The eyepiece is marked up as 7.5, so I assume this is the magnification, as per my other binocular microscope(s); the eye lens itself screws into a tube with a pair of cross hairs at the bottom end, along with a second lens.

The objective is marked up as "Telescope" which would seem an accurate description, as I can focus on the buildings opposite with the draw tube fully compressed.
I don't have any other objective lenses to try as both my other binocular scopes are designed for benchwork/dissecting etc and have combined dual lens slide in units; their eyepieces work OK in this scope, but they don't bring the focussing any closer.
The objective's thread seems to be a nominal 0.8" or a shade over 20mm
I've not tried to measure the pitch yet.

Any thoughts about an easy solution please?

At the moment, I'm guessing I need something like this 4x lens, which appears to be the correct thread, though, as above, I've not checked the pitch yet; That might be easier if only I had a suitable microscope.
https://www.ebay.co.uk/itm/134641718804

Cheers
Bill

 

Edited By peak4 on 18/07/2023 21:02:49

Thread: Help from any Kennedy Hexacut Power Hacksaw owners out there?
13/07/2023 16:12:44
Posted by bernard towers on 13/07/2023 12:07:47:

Interesting to note that that the already motorised version is flat belt and the non motorised version is Vee belt!. There must be a reason , supply of belts/pulleys etc.

I would suggest that the reason is to keep the portable powered machine as compact as possible.
To ensure a low enough reciprocating speed, with that larger pulley and a 1425 motor, one needs a tiny driving pulley, so only a flat belt was suitable at the time.
An unpowered saw could be powered via a reduction jackshaft running with two V belts.

Bill

Thread: Workshop clearance
08/07/2023 21:29:58

Alistair, as well as eBay, consider posting on here first, as there won't be any selling fees, and I suspect most prospective buyers from this site will be genuine.
If it doesn't sell here of the next option then resort to ebay.

Also consider Home Workshop, which is as site now managed by the son of John Stevenson, its founder.
https://www.homeworkshop.org.uk/

Posting there isn't immediately intuitive, but it has a large readership of genuine buyers, and again no fees other than donations.

Posting photos here, all on the same thread, before formally advertising, may help with descriptions and valuations.
This might well assist with items such as the milling machine, dividing head, metal multi-former etc. that I noticed in one of your Dad's photos on Facebook.

Bill

Edited By peak4 on 08/07/2023 21:34:42

08/07/2023 21:20:37
Posted by duncan webster on 08/07/2023 14:01:48:

putting alontoast99 into ebay search engine produces no matches, can you post a proper link.

A list of what's for sale would be good, I'm fairly local, but don't want to waste your or my time on a speculative trip

You just need to put the name in the right part of the search, but here's the relevant link

Alistair's For Sale Items
https://www.ebay.co.uk/sch/i.html?item=155653577522&rt=nc&_trksid=p2047675.m3561.l2562&_ssn=alontoast99

Bill

07/07/2023 22:05:04
Posted by Alistair Hughes on 07/07/2023 21:56:33:

This is one of his creations that may be familiar to some on here.

Cheers

Al

Alistair,

You may not be aware, but there is a whole thread about it here;
https://www.model-engineer.co.uk/forums/postings.asp?th=77280&p=1

Bill

07/07/2023 20:09:16

That scooter looks familiar, I think your Dad and I are Facebook friends, though we've never actually met each other.

You've an interesting email address, Fireblade and a Z1; mine are Yam/Guzzi/Ducati/Triumph

Wishing your Dad all the best.

Bill

Thread: Clarkson T&C grinder
06/07/2023 23:40:35
Posted by noel shelley on 06/07/2023 23:20:44:

I believe so ! I will dig them out. Noel.

Noel, If you're doing a zip file to mail out, I'd much appreciate being on you list please.

Many Thanks

Bill

Thread: Hearing aids - NHS or private?
06/07/2023 02:11:33

Only recently started wearing them myself; I don't use them all the time, but great for TV theatre etc.
Have you had your present ones re-programmed recently to suit your current hearing defects?

Good Luck
Bill

Thread: Rotary broaching
04/07/2023 22:36:38

Daniel, I'm no expert on this at all; I've bought a toolholder, but not tried to use it yet.
It looks similar to yours, but with a parallel shank, which I assume is the way your one started out.

I think it's a non adjustable one, so the Slaters video above which speaks about null points may be misleading; or may not of course as I've no experience.

Have a look at the range of Slaters videos, and in particular the last one, about Swiss style toolholders.



See also



Bill

 

 

Edited By peak4 on 04/07/2023 22:37:37

Thread: Kennedy Hexacut machine hacksaw
03/07/2023 20:45:20

In which plane does it fail to cut square, and does the cut wander part way through?
By that I mean, does the cut go off vertically, or is the blade no longer perpendicular to the vertical face of rear vice jaw?
I've just been out to look at mine and it seems that there is no adjustment between the vice and the hacksaw bow itself.

I wonder if your main bearing bushes are worn, and the new belt with extra tension is pulling the man spindle, and thus the blade out of square.

Bill

Thread: NEWSFLASH
30/06/2023 20:58:26

There's a (very) basic explanation of what happened HERE
https://www.ispreview.co.uk/index.php/2023/06/bt-reveal-cause-of-999-emergency-uk-calling-handling-outage.html

Updates will no doubt be available from HERE
https://www.ofcom.org.uk/about-ofcom/bulletins/enforcement-bulletin/open-cases/bt-999-outage-june-23 

Bill

Edited By peak4 on 30/06/2023 21:01:09

Thread: Replacement Bearings - Myford ML7 Motor
29/06/2023 20:31:14
Posted by Tim Edwards on 29/06/2023 13:04:05:

Many thanks for all your responses.

The bearings I am looking for are indeed the white metal bearings from the electric motor.

OD = 20mm, ID = 17mm, Wall = 1.5mm

................I want to see if I can just get the bearings myself, either off the shelf or made to measure, as I can do everything else.

If only I had a lathe that worked, I could potentially machine my own frown

Since you could make the bearings yourself, if you had a working motor, here's an offbeat thought, just to get you up and running.
How about a split bushing?
I've not found any 17mmx20mm, but these are 20x23mm, so the correct wall thickness, just a bit to large.
Since they are split already, take a bit out of the split to change the circumference a little (and hence the diameter) and you might get up and running again.

Bill

29/06/2023 19:11:23

Tim, if you say where you live approximately, another member may be able to assist.

Bill

Thread: NEWSFLASH
25/06/2023 20:52:01
Posted by Michael Gilligan on 25/06/2023 20:44:10

Thanks for sharing the helpful links, Bill yes

… Who knows ? … someone here might find them useful tonight !

Your “but” is what I had in mind when I wrote ”may have been somewhat exaggerated”

MichaelG.

When I was still in gainful employment, back in GPO/BT Strowger days, quite a lot of my time was spent installing and modifying the operator's call suites, mainly 100 & 999 boards, though I did play a bit with 151/2 & 192 services.
No geolocation then of course, and even Calling Line Identification only came later on with digital services.

Bill

Thread: Do I need a J drill or what?
25/06/2023 20:47:02
Posted by DC31k on 24/06/2023 17:40:15:

Leave the delrin in the freezer overnight. Drill through it with the 7mm bit tomorrow morning.

I would imagine that the problem lies with the leads, rather than the Delrin.
Most HT lids I've used as slightly squashy, so are likely to bunch up on being pushed into a hole.
Maybe put the leads in the freezer, instead of the Delrin, to stiffen it up a bit, or make a thin tubular guide out of shimstock or a soft drinks can.
Squash that around the lead, with a bit of lube, insert into hole, and remove the metal bit.

Bill

Thread: Odd Thread Size
25/06/2023 20:39:20
Posted by Chris Goodwill on 25/06/2023 20:17:46:

Thank you everyone

The vice is an old record 34 steel and I did wonder about the countersinks as the holes looked a bit odd, been 60 Deg makes a lot more sense

According to the website, the 60° angle was used on 34/35/36 vices.

Bill

Thread: NEWSFLASH
25/06/2023 20:21:32
Posted by Michael Gilligan on 25/06/2023 19:50:37:

Recent reports that it is back online may have been somewhat exaggerated:

**LINK**

https://www.midweekherald.co.uk/news/national/23612959.issues-999-calls-continue-technical-fault-says-bt/

MichaelG.

It seems that the backup system is OK, but there is a loss of functionality of the location aspect, where the caller's location is displayed on the call handler's screen.
The article suggests using What3Words, which does work well to a precise location, but is also susceptible to misreading or regional accents amongst other errors.
https://what3words.com

Mountain/Cave rescue etc also ask folks to use OS Locate, which give a 6 figure OS grid reference, (as well as Lat/Long, though the latter may only work on some devices or operating systems.)
This can be used in conjunction with W3W such that the two will confirm each other, and help avoid misunderstandings.
It's a free app and will easily sit on your phone's home screen, assuming you have a smartphone.
https://shop.ordnancesurvey.co.uk/apps/os-locate/

Hopefully, none of us will need to use it for emergency reasons.

There is also a Text to 999 service, though you need to pre-register your phone number
https://firstaidtrainingcooperative.co.uk/can-i-text-999/

Apart from being of use to the deaf, it can also work where there is a poor mobile signal, as texts often get through where calls fail.

Bill

 

Edited By peak4 on 25/06/2023 20:34:36

Thread: Odd Thread Size
25/06/2023 19:57:54

It would seem that Record used 5/16" BSC on some vices, as The Viceworks makes them specially , but make sure you pick the correct countersink angle.
https://www.viceworks.co.uk/products/vice-jaw-screws-and-bolts?variant=44213941076134

Bill

Edited By peak4 on 25/06/2023 20:00:17

Thread: 1/2" Coventry Diehead CHS type
17/06/2023 22:21:41

Just re-reading my earlier comment;
"My screws all measure about .01515" diameter and 0.57" long"

seems to have acquired a misplaced decimal point, and should of course read
"My screws all measure about 0.1515" diameter and 0.57" long"
That's about 10 thou under 3BA

Bill

Edited By peak4 on 17/06/2023 22:22:26

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