Search found 32 matches

by Clive Impey
Sun Apr 14, 2019 10:28 am
Forum: Steam Locomotives
Topic: Wainwright H Class P4 conversion
Replies: 30
Views: 2879

Re: Wainwright H Class P4 conversion

FCA You say that converting Studiolith wheels for split frames is difficult but are you aware of Barry Luck's article in MRJ 19 ? His method is to use a 1/8 reamer in the wheel socket hole until a i/8 axle will go in half way. The axle can then be pushed the rest of the way in and is a firm fit in t...
by Clive Impey
Sat Jan 12, 2019 11:17 pm
Forum: Recommendations
Topic: Trent Plastics
Replies: 1
Views: 2016

Re: Trent Plastics

They also sell Acetal rod ( black,white or blue) from 5mm diam. upwards. This is an industrial plastic used for bearings. It machines well and is ideal for insulating bearings in split axle chassis.

Clive












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by Clive Impey
Sat Jun 02, 2018 11:44 am
Forum: Nottingham Area Group (NAG)
Topic: NAG Meeting 24th May 2018
Replies: 21
Views: 3526

Re: NAG Meeting 24th May 2018

David B's method also works using a miniature gas flame instead of an RSU. It is reassuring to learn that I am not the only one who gets overlays on upside down.

Clive.
by Clive Impey
Fri Mar 02, 2018 2:30 pm
Forum: Tools and Techniques
Topic: The Adventures of an RSU Virgin
Replies: 45
Views: 8587

Re: The Adventures of an RSU Virgin

Jol, John and David Thank you for the very useful information on wire specifications. The wire I have at the moment is close to the RS PVC cable with the exception that the RS wire has 10x the strands. When I need more wire I will use the RS silicon spec. Also, following Jol's comments on carbon dia...
by Clive Impey
Thu Mar 01, 2018 4:39 pm
Forum: Tools and Techniques
Topic: The Adventures of an RSU Virgin
Replies: 45
Views: 8587

Re: The Adventures of an RSU Virgin

Steve I have just found my copy of the instructions for the Exactoscale RSU. These contain a wiring diagram as well as identifying which contacts provide which power outputs. Would you like me to send you a copy? The carbon size is 4mm. I agree with Guy that the carbons are a loose fit in the brass ...
by Clive Impey
Fri Dec 15, 2017 3:52 pm
Forum: Chassis and Suspensions
Topic: Coreless motors and worm gearboxes.
Replies: 17
Views: 2911

Re: Coreless motors and worm gearboxes.

Sam

In Scalefour News number 139 there is an article by Peter Sutherland describing the fitting of coreless motors to High Level gearboxes. Also in S4News 149 Graham Seed has an article on fitting Maxon motors to High Level boxes.

Clive.
by Clive Impey
Sat Dec 09, 2017 12:06 pm
Forum: Chassis and Suspensions
Topic: Coreless motors and worm gearboxes.
Replies: 17
Views: 2911

Re: Coreless motors and worm gearboxes.

Sam,

On Page 25 of Scalefour News 205 there is a photo of a GWR 633 class tank. The loco has a Portescap motor driving a dog clutch on a High Level gearbox. I am sure the builder would help you if you were to contact him.

Clive
by Clive Impey
Thu Sep 14, 2017 3:44 pm
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 1022
Views: 128380

Re: Making a Start - The Peak District Midland pre 1905

In MRJ 48 there is an article by Steve Hall on making rail built buffer stops. The article has a description and drawing of a rail bending jig. I have made one of these jigs for myself and have found it very useful.

Clive I
by Clive Impey
Sat Jul 08, 2017 11:26 am
Forum: East of Scotland
Topic: East of Scotland June Meeting and a Wee Challenge
Replies: 9
Views: 3206

Re: East of Scotland June Meeting and a Wee Challenge

Many thanks Lindsay. These details are just what I needed.

Clive.
by Clive Impey
Fri Jul 07, 2017 8:59 am
Forum: East of Scotland
Topic: East of Scotland June Meeting and a Wee Challenge
Replies: 9
Views: 3206

Re: East of Scotland June Meeting and a Wee Challenge

Thank you Lindsay. Seeing your test track reminded me that I have been talking about doing something similar to test my own locos. I need to get the talk made into three dimensional reality.

Clive.
by Clive Impey
Sun Jul 02, 2017 5:54 pm
Forum: East of Scotland
Topic: East of Scotland June Meeting and a Wee Challenge
Replies: 9
Views: 3206

Re: East of Scotland June Meeting and a Wee Challenge

Lindsay,

What is the tightest curve on the test track ? Also would it be possible for you to let us have some details of the construction of the boards and supports.

Clive.
by Clive Impey
Sat Jul 16, 2016 10:15 am
Forum: Tools and Techniques
Topic: Pin Chucks
Replies: 25
Views: 6597

Re: Pin Chucks

John, I have never found the Eclipse 121 etc pin chucks to be very satisfactory when used with drills. I would suggest that for drill use the Eclipse UCL 160 (Squires) that has three collets covering the range 0.25 to 2.5 is a much better tool. The one I have was purchased some 50 years ago and is s...
by Clive Impey
Fri Sep 27, 2013 8:13 pm
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 53
Views: 26088

Re: Buck Jumping on Mass

Will,

Chronos sell 1/16 diam phosphor bronze balls 5 for £1.00. http://chronos.ltd.uk/acatalog/Phosphur ... Balls.html

Clive
by Clive Impey
Tue Jun 18, 2013 2:02 pm
Forum: Chassis and Suspensions
Topic: Thin PCB from Eileen's
Replies: 7
Views: 3078

Re: Thin PCB from Eileen's

Andy. I put channel section formed from shim brass on the ends of pcb frame stretchers to increase the area soldered to the frames. This is particularly useful where the spacer is flush with the top of the frame. Up to now I have, like yourself, used 1.5mm pcb and have formed the channel around 1.6 ...
by Clive Impey
Sun May 19, 2013 9:22 am
Forum: Steam Locomotives
Topic: High level kits 14" Robert Stephenson Hawthorn
Replies: 75
Views: 20081

Re: High level kits 14" Robert Stephenson Hawthorn

Doug. I built my High Level RSH exactly as the instructions so mine is compensated. It has a mashima 1224 with a flywheel. The one real problem I had was fitting collectors. In the end I made a scale drawing of the underside of the chassis with all the obstructions marked and built the collectors ov...
by Clive Impey
Thu May 09, 2013 9:31 am
Forum: Lathe Work
Topic: Recommended reading
Replies: 8
Views: 5660

Re: Recommended reading

I have a well worn copy of ' Using the Small Lathe ' by LC Mason orignally published by MAP in 1963 it seems to have been reprinted recently and has been listed by Camden Books. It concentrates on small lathes and has ideas on home production of lathe accessories.

CliveLincs
by Clive Impey
Sun Apr 28, 2013 9:09 am
Forum: Couplings
Topic: Prototype Issues - Couplings
Replies: 26
Views: 10304

Re: Prototype Issues - Couplings

I use Sprat & Winkle 3mm scale delayed action autocouplings on my layout and have found them quite satisfactory. The gap between wagons is ok and they are not too obtrusive. They do need careful setting up but once done require little maintenance. It helps if the wagons are not too free running ...
by Clive Impey
Sat Apr 27, 2013 8:38 am
Forum: jjnewitt
Topic: Milk Tank Madness
Replies: 41
Views: 20096

Re: Milk Tank Madness

Eileen's Emporium sell 1mm dia silver steel and 2mm dia brass tubing with a 1mm bore. The steel wire available from model aircraft shops will probably be hardened wire - silver steel will be much easier to cut and file.

Clive
by Clive Impey
Fri Apr 26, 2013 7:14 am
Forum: Exhibitions
Topic: Scalefour North 2013
Replies: 84
Views: 21718

Re: Scalefour North 2013

That is very good news Ian. It does mean that we can continue to have a relaxed approach to the security of our stock at S4 Society events.

Clive
by Clive Impey
Fri Apr 19, 2013 9:16 pm
Forum: Exhibitions
Topic: Scalefour North 2013
Replies: 84
Views: 21718

Re: Scalefour North 2013

Ian, I have a High Level RSH 0-4-0ST that you can borrow. It is fitted with a 1220 motor and is DC. It is fitted with loops for S&W couplings but these can easily be removed, it has hooks for 3-link but no chains. I will be there at opening time tomorrow and also all day Sunday so you can have i...
by Clive Impey
Fri Dec 28, 2012 3:19 pm
Forum: Chassis and Suspensions
Topic: Eileen's split axle test
Replies: 13
Views: 6030

Re: Eileen's split axle test

Your split axles look like good engineering to me. I think you should post your progress with this loco so we can get some discussion going on split chassis construction. Although you have made triple split axles there is no need to keep the gearbox electrically neutral when using can motors as the ...
by Clive Impey
Thu Dec 13, 2012 11:57 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 19816

Re: profiling EM wheels to P4

In my post of Dec 10 I stated that Ray hammond took 0.5mm off the back of Sharman wheels. This should have been 5thou of course. My appologies to those of you who now have rather thin flanges. Also in Scalefour News 5 is a letter from Mike Sharman on the origins of the wheel profile he used. CliveLi...
by Clive Impey
Mon Dec 10, 2012 12:33 pm
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 19816

Re: profiling EM wheels to P4

There is an article in Scalefour News number 5 (its in the archive) by Ray Hammond on reprofiling Sharman 00/EM wheels to P4. What Ray did was to remove 0.5mm from the back of the wheel; doing anything to the flange being optioinal. I think that Roye England produced finer drivers for early Pendon l...
by Clive Impey
Wed Nov 07, 2012 6:56 pm
Forum: Lathe Work
Topic: Looking for advice on ER16 collets
Replies: 16
Views: 8892

Re: Looking for advice on ER16 collets

If I might jump onto John's enquiry, does anyone know of a collet chuck that will fit the 12mm thread of a Unimat SL spindle? I can find nothing currently available (hardly surprising given the age of the lathe). Philip Phillip try http://www.emcomachinetools.co.uk . They list spares for the Unimat...
by Clive Impey
Fri Apr 27, 2012 12:13 pm
Forum: Steam Locomotives
Topic: Wheels for HighLevel 14" RSH 0-4-0T
Replies: 6
Views: 2686

Re: Wheels for HighLevel 14" RSH 0-4-0T

The wheels you need are 3ft 6in 10 spoke which are available from Alan Gibson. I used Sharman wheels on my RSH and they were very eccentric needing a lot of machining to get them running true. I used a Machima 1224 with a flywheel. High Level kits go together beautifully - just follow the comprehens...

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