And this isn’t some stripped-down, bare-bones software here. Unlimited board size, and unlimited layers – all free. This week, Altium launched the open public beta for its new Circuit Maker software, and it’s a major change from what we looked at previously. Authorised by Bruce Jackson.Things are about to get interesting in the world of PCB design software for the open source hardware community. This article contains general investment advice only (under AFSL 400691). The Motley Fool Australia owns shares of and has recommended Altium. owns shares of and has recommended Altium. The Motley Fool Australia’s parent company Motley Fool Holdings Inc. James Mickleboro does not own any shares mentioned.