Nigel Lawton 009 20HP WD Simplex Petrol Mechanical Loco Kit Assembly Instructions Manual

Nigel Lawton 009
Credits
This kit has been a long time in the making and I would like to thank several fellow modellers for their help and advice along the way.
Pete Wilson for the original choice of exactly which Simplex to model, motivation to keep going and the use of his excellent layout 'Willesden Junction' to run and photograph development locos.
Dave Gibbs for his huge efforts in photographing and measuring up a prototype loco under rebuild allowing me to hopefully produce an accurately modelled set of bonnets and radiator in particular
(but many other details as well).
Phil Robinson for taking photos of the MRT loco for me.
Otto Shouwstra for being the original inspiration to use belt drives on a Simplex model and later advising me on reduction mechanisms leading to the two-stage friction drive.
Neil Moss for some excellent ideas on how to design etched brass kits particularly the use of sacrificial tabs and strengthening sections, and the final swinging arm design.
Neil Sayer for his enthusiasm in building the first complete loco (even before I had) and for many helpful suggestions as to how to improve the kit and instructions.
Ted Scannell and the P4 CLAG group for some brilliant insights into the issues around miniature drives using micro motors and belts which were instrumental in the evolution of the final drive design.
I am tempted to add my entire extended family at this point and shed an insincere tear Oscars style but am trying to resist.....
WARNING! ETCHED PARTS CONTAINED IN THIS KIT HAVE SHARP POINTS, EDGES AND CORNERS. HANDLE
ALL ETCHED PARTS WITH CARE AND REMOVE SHARP EDGES FROM THE COMPLETED MODEL.
WHITEMETAL SUPPLIED WITH THIS KIT CONTAINS LEAD – PLEASE DO NOT INGEST!

PLEASE READ ALL THESE INSTRUCTIONS THROUGH BEFORE STARTING TO BUILD THE KIT.

IT IS IMPLICIT THAT ALL JOINING PIECES ETC SHOULD BE REMOVED FROM ETCHED COMPONENTS BEFORE ASSEMBLY.

THIS KIT CONTAINS MANY SMALL PARTS. PLEASE TAKE CARE NOT TO LOSE THESE PARTS. SOME SPARES ARE PROVIDED
WITHIN THE FRETS IN CASE OF LOSS AND FURTHER REPLACEMENTS ARE AVAILABLE BY MAIL INITIALLY FOR POSTAL COSTS
ONLY.

NOTE THAT NOT ALL HALF ETCHED LINES IN THIS KIT ARE FOLD LINES, CHECK THE INSTRUCTIONS BEFORE FOLDING!
Tools Required
Small hobby knife or scalpel with new blade.
Soldering iron (preferably temperature controlled)
Flat thin nosed pliers long and short for folding, also a folding jig is nice
to have but not essential.
Small and larger round nosed pliers
Side cutters or snips for stripping wires
Small needle files for cleaning up parts.
Tapered Jeweller's broaches
0.4mm,0.6mm, 0.8mm,1mm & 1.5mm drill bits with pin vice(s).
Mini drill with diamond disk or slitting disk and burrs.
General Assembly Notes
Cutting parts from the frets.
Use a sharp knife or scissors or special fret scissors. Apply knife side to side, not downwards. Where possible cut the trace at the opposite end to
where it joins the part and trim with scissors afterwards. Use fine needle files or toolmakers stones to clean up small projections.
Solder, use of flux and tinning
I recommend the use of 140C solder for most of this kit, including the majority of the detail parts. Do not use superglue, detail parts can be fixed
using quick set metal type metal epoxy (which is holds position better) if you do not want to solder them. Using 140C solder enables only a small
area of the kit to be heated and the heat-up and cool down times are much shorter. Always apply a small amount of flux before applying or re-flowing
solder. To tin parts apply a small amount of flux then carry a very small amount of solder to the part with the soldering iron. Repeat if more solder is
needed, but use the minimum amount to coat the surface in the thinnest possible layer. If too much is applied use the iron to take this elsewhere on
the fret (to other parts needing to be tinned or onto fluxed frame areas).
20HP WD Simplex Petrol Mechanical Loco Kit
Assembly Instructions
Consumables Required
Standard 240 degree solder
140 degree detail solder
Low-melt 70 degree solder
Flux (I recommend a paste type like 'Powerflux')
Non-permanent thread lock (e.g. Blue Loctite 242or green 603)
Quick set metal type metal epoxy glue
Model grease or oil
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