Ruler from Digikey
※ Download: Digikey pcb ruler
How many of the 7 half million are components like resistors with a standard footprint? This only works in smaller, close groups, but if it was taken on by many, the government could be got rid of Woohoo! The ruler I can actually hope to hold in my hands beats the flashy interwebs picture one every time!
With the Adafruit design being Open Source, there have been imitations, mostly from abroad. Then add LibName variables with just the name of the library.
Ruler from Digikey - I got mine from a trade show a few says ago, and I have to say the PCB design and quality aren't that good.
I am anxious to get mine. However, in light of the discussions here of such rulers, I really don't see the function. When I am designing in Eagle, for example, I would never think of using an overlay to confirm a dimension. If Eagle says the hole is 0. That is a 0. Who am I to question whether the actual hole is 0. I use manufacturer's dimensions for pads. Most CAD programs have so many decimals of precision, any printing on a ruler is grossly inaccurate by comparison. I don't need something I can print out to see if it fits. I use the CAD dimensions. But I do like freebies, and I have been a loyal customer of DigiKey for at least 25 years. It also had a QR code on the silkscreen. In white, where the color should be black, so technically inverted QR code. About these freebies, they really should figure out a way to send useful freebies with the mail. The most useful was a pack of gummy bears and a deck of cards. The ruler might be useful, but I have uRuler. However, in light of the discussions here of such rulers, I really don't see the function. When I am designing in Eagle, for example, I would never think of using an overlay to confirm a dimension. If Eagle says the hole is 0. That is a 0. Who am I to question whether the actual hole is 0. If I have some stranded wire or an LED sitting next to me, I'd rather do a quick test fit in an existing plated hole to see what fits best for my design. Sure I can use the rule of thumb, or estimate, etc. Same with the silk screen, without seeing it in front of you, its hard to gauge how large the text will be. If its readable from arms length, etc. I do not have one of these rulers yet though..
I am anxious to get mine. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. Not a surprise, given that the company was started by a hobbyist supplying kits and parts for an electronic code keyer. digikey pcb ruler We sincerely apologise for this mistake. If you buy less than a full reel, you'll get a single strip, but it will be a cut piece from a reel which may or may not have a connector on it. We sincerely apologise for this mistake. I digikey pcb ruler manufacturer's dimensions for pads. The correct URL is. They may have a half mullion parts but you will never use 495,000 of those anyway. Digikey sold single components from a nice printed catalog and has just gotten bigger and bigger. This only works in smaller, close groups, but if it was taken on by many, the government could be got rid of Woohoo!.
