Sale of plans

Those very understandable english plans with metric dimensions (and adaptations for US sizes) contains 90 A4 pages, with 56 drawn under SolidWorks + 105 pictures and many explicit texts that will help you achieve your machine simply, in a short time and very economically.

To acquire the plans and download them from the forum, it’s very simple :

– 1) Download here the construction licence.

– 2) Print, fill, scan and send it to infos@spratt103.com

– 3) Accompany it with payment of 100 euros via Paypal (no fee for you, fast, secure payment and major credit cards accepted). Click on “Buy now” :



Due to its specificities, the Spratt 103 concept is protected by 5 patents with the INPI as well as by copyright in the 163 signatory states of the Bern Convention.