I’m pleased to announce the Pi-Stop is now available to pre-order from the 4Tronix.co.uk shop.
http://4tronix.co.uk/store/index.php?rt=product/product&product_id=390
Take a look at the product page on the 4Tronix site for more details, or on my site, or take a look at the resources available via GitHub (contains a range of workshop materials and resources available to use or adapt for your own needs).
I look forward to sharing this exciting new add-on with everyone!