On this web site you will find information about Ultrascale products. Ultrascale is the name under which a range of 4mm scale items for modelling British outline steam and diesel locomotives is produced. This range includes the most common locomotive and rolling stock wheels and conversion packs for proprietary, ready to run locomotives. Most of these items can be supplied for either 'OO' Fine scale, E.M. or 18.83 gauges. Also available is a range of worm and wheel gear sets and spur gears suitable for 2mm, 4mm and 7mm scales.
For a comprehensive and up to date list of products and prices, please visit our 'Products' section.
Hornby Drummond 700 Class.
Our latest commissioned conversion was a Hornby Drummond 700 Class in 18.83. As we do not have the correct wheels for this model we used the nearest ones we had for both the loco and the tender. In this case GWR 5' 2" for the driving wheels and 4' 1 1/2" for the tender wheels. A new brass final drive gear was also produced.
The only modifications done to the loco body and the tender was to widen the rear splashers and to move out the brake gear on the loco, move out the tender sideframes to clear the 18.83 tender wheels and to modifiy the tender drawbar pin so the drawbar can be adjusted.
We have just finished our latest conversion which is for the Greek Adtranz model by Alpha Trains, AT13001, AT13002, AT13003, AT18010, AT18011 as Greek OSE A471, A475, A478, 220022 & 220036.
All the above types of models were for two rail DC or DCC operations.
Gear Lab is a collection of gear data calculators in the form of an iPhone app that can be used with Worm gears, Helical gears and Spur gears.
Gear Lab has been developed by SpiralArm Consulting Limited and Gear Services (Letchworth) Limited to help in the manufacture of the Worm and Wheel gear sets, Spur gears, Pinions and Helical gears available via the Ultrascale web site. However, it can be used for the same type of gears from other sources.
Released: 6th July 2015
This calculator is an iPhone app that can be used to calculate the Outside Diameter, Centre Distance and Ratio of spur gears and pinions.
Please note that this calculator should ONLY be used for spur gears and pinions, NOT for helical gears.
This calculator was initially developed for use with the spur gears and pinions available via the Ultrascale web site. However, it can be used for spur gears and pinions from other sources.
Released: 17th June 2015
Having now looked at our new bank changes for the processing of cheques/postal orders. We have taken the decision that we will now have to introduce a £5.00 surcharge charge for all orders that are paid for either by cheque or postal order. We are sorry to have to take this action but it has been force on us by the increase in bank charges for these items.
This new charge will only apply to cheque/postal order payments and will be introduced from Monday 14th October 2013. Any orders that are received from this date on, that do not meet this rquirement will be returned.
Last updated: 14/09/2013
If you are interested in 3D printing, then why not follow our progress on Facebook as we build and test the 3D printer from Ultimaker.
We have now produced a simple 3D printed gear box case for our new 2:1 crossed helical set set shown below. The basic dimesions of the case are Height 19mm, Width 14mm, Depth 9.5mm. The gear box has ball races on both the input and output sides of the box.