Whilst research, designing and building a P3Steel version 4 3D printer, I was a bit confused when it came to the various types of bearings required for the threaded rods, lead screws and GT2 belt pulleys: 624zz, 625zz, 605zz, F624zz, 608zz, etc. Fortunately I found this page, Notes on Ball Bearings, which explained the nomenclature. I have reproduced the page below.
In an attempt to answer the question on StackExchange Arduino, What type of connector does the GROVE system use?, and after looking up the Grove system, I contacted the technical support team at Seeed. I promptly had a reply, and below is the information that I received.
This is a succinct summary of the Drone based blogs, which cover each area/topic in much greater detail.
This blog is, basically, a chronological list (or, if you will, a retrospective diary) of events that I encountered when attempting to build my first drone from scratch, with my broaching of the subject – having had no prior experience of UAVs, what so ever. Continue reading Quadcopter build log