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FAQ's

FAQ's (Frequently Asked Questions) about our kits and servicees.

4mm scale chassis and underframes for our kits
Six wheeled Stock D3D supplies a 3d printed set of axleguards which are designed for our 6 wheel coach kit D3D-05 4mm scale 6 Wheeled Coach axleguard kit There are a number of ways of making an underframe for a six wheeled coach.  The choice of method depends on the track. Sharp curves cannot be negotiated by a rigid six wheeled vehicle. The minimum allowable radius of the curves depends on the gauge of the track and the available freedom of movement of the axles.  The first image below, tak..
Alternate Payment Method
Alternate payment Methods. We offer a direct payment method as an alternate to cheques or for ad-hoc payments: https://paypal.me/diagram3d?locale.x=en_GB   Note:To use this payment method, you need to have, or register for, a PayPal account.   This method allows variable amounts to be sent directly to us as an alternate to sending cash or a cheque in the post. The link takes one to the screen below: C..
Browsers
Browsers that we test  include: Firefox Google Chrome Microsoft Edge Opera Brave All of these browsers (latest versions) display our content correctly.   If you are experiencing problems then clear your cache and cookies and try again.   ..
Requesting a new model
We often receive requests for new model designs.  These requests are always examined and prioritised. The criteria applied are that the model must be well documented and of reasonable appeal because the research and development effort can be prohibitive for a single model. Our focus is on older (pre-grouping) vehicles.  The research effort can be quite considerable.  However, do not be afraid to ask us about any project as that is useful feedback for the future and it may already ..