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Member postings for Martin Cargill

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

Thread: pulley problem for electric motor for grinder.
13/05/2022 17:29:23

Be aware that taper locks use a BSW threaded grub screw with a metric socket be they for metric or imperial shaft


Thread: forward reverse switch
08/05/2022 20:55:48

Position 1 Terminal 1 is connected to terminal2

Position 0 nothing is connected

Position 2 Terminal 3 is connected to terminal 4

Terminals 2 and 4 are permanently linked together

And so on for the other 3 switch sets

What are you trying to reverse?


Thread: Workshop warming
28/04/2022 19:27:28

In our workshop the Gaffer allows us to all huddle around a candle. If the workshop temperature drops below -10 he will even allow us to light it.

Thread: Leblond Regal 10" drive motor replacement
10/04/2022 16:03:54

If the existing motor is fed through an overload relay or some form of motor protection switch then the current setting on the protective device may give some idea of the motor rating. Exercise caution though as some DIY conversions may have used whatever was to hand at the time and may not have been properly rated for the motor.


Thread: Special M5 CSK screws
25/02/2022 18:46:56

Thanks for all of the replies. Can find a lot of similar ones but nothing exactly matching our requirements. I've given details to one of the suppliers but they have come back with a price of over £2000 for 500 custom made screws. Back to searching.


24/02/2022 19:10:01

For a machine one of our customers has we need to find some replacement screws that hold the cutters in place. The machine manufacturer has gone out of business so we can't obtain spares from them.

The required screws are a shouldered M5 countersunk Torx (T20) head 13mm long with a 6mm diameter shouldered portion, the shouldered portion is around 6mm long (including the countersink head). They look like a larger version of the screws that hold inserts into lathe tools.

Would anyone have any Ideas for a possible supplier?

Any suggestions welcome



Thread: Are standard "M4" nuts & bolts normally fine or course pitch?
13/01/2022 19:40:46

A word of caution. One of the members of the railway society was making some parts for a university project and he asked me for a couple of extra nuts to fit the bolts he had purchased from one of the major DIY stores (B&Q). I got him a couple of nuts from the back of my van (M5 x 0.8, metric coarse), only to discover that they wouldn't fit. Checking the packet it turns out that the items he had purchased were M5 x 0.9. Try finding them anywhere else.


Thread: Trevor Drabble
10/01/2022 21:57:35

Can Trevor please contact me regarding the nylon 66 rod I have advertised for sale. I have received your reply but have no way of contacting you. My email address is


Martin Cargill

Thread: Is there too much choice?
02/01/2022 00:02:26

Regarding insurance My father used to live in Malaysia, out there they had a system where all of the insurance companies were, by law, required to charge the same for their products. You made your choice based on the service you received from the company of your choice.

Sounds good but it means that the insurance companies agreed the price between themselves, and you can easily work out what that meant....


Thread: How fast is fast enough
20/12/2021 18:22:36


I have a U1 universal. Its max speed is 1010 rpm on horizontal. I have a vertical head as well so this may be capable of 2020 rpm if the bevel gears double the speed.


Thread: Scribing with verniers
09/11/2021 18:26:12

A friend of mine tells of the time when they caught a labourer using a pillar drill with four micrometers as G clamps. Might have got away with it but he had used mole grips to tighten them.

Thread: J&S 540 Smoking
17/09/2021 19:13:59

Our surface grinder at work has a leaky arbour bearing seal that sprays a little oil into the grinding dust. From time to time this mix is set on fire by the sparks from the grinding wheel. not serious as it just smoulders a bit, but it does mean stopping a grinding operation to clear the glowing embers. It produces an oily smoke.


Thread: One for the youngsters
28/08/2021 09:21:01

If you have five minutes to spare google "Dave Allen telling the time". One of his best !


Thread: Vehicle reversing sensors
18/07/2021 07:59:13

Reversing light, you flash ba****d. I have the mark one eyeball fitted to my series Land-Rover. If that fails I revert to the mark one ear and park by sound, You just pull forward a bit after the crunch noise.


Thread: Boxford Model A
02/07/2021 17:57:54

Many thanks for every ones input. The free pdf gives me enough info to get me started playing with my £25 purchase.


01/07/2021 18:55:23

I have just become the owner of a somewhat neglected Model A. Can anyone point me in the direction of a manual or can anyone explain what all of the various controls do.



Thread: Shaper
06/06/2021 20:10:49

Found one figure of 800kg. You may need to strip bits off to get the weight down so that you can use an engine crane at its max extension (so that you can get the max lifting height). can probably provide a manual that should give you weights, dimensions and the lifting points.


Thread: BSW Fasteners
23/05/2021 16:42:19

Ebay item number 133400343863


Thread: Hare Hydraulic Press, anyone?
27/04/2021 19:09:01

I built a stamping machine( producing laminate samples) a couple of years ago. The heart of the machine was a 5T Hare Hydraulic press. What do you need to know?

Thread: Can this converter run this motor?
04/04/2021 20:40:49

The fact that it refers to a "minimum SINGLE motor" probably means that you could run your motor alongside another motor to get around the problem. Try giving Transwave a call, from memory they are quite helpful people.


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