Wouldn't 0402 be 4x larger (if comparing lengths) or 16x larger (if comparing areas), not 2.5x?
Edit: Nevermind, I was wrong. I see now that the sizes don't actually directly correspond to the number codes! 01005 is 0.4mm x 0.2mm and 0402 is 1mm x 0.5mm. That's annoyingly confusing, IMO.
I was a bit outdated with resistor sizing and I don't have a great sources but apparently there are:
inch 0402, 0201, 01005, 009005, 008004, $1
mm 1005, 0603, 0402, 03015, 0201, 01005
these sizes... and $1 is the one in your mind that shall not be written in inches. The "01005 imperial" is just 0402, so it's not going up to the metric 01005 scale or beyond. I think.
Wouldn't 0402 be 4x larger (if comparing lengths) or 16x larger (if comparing areas), not 2.5x?
Edit: Nevermind, I was wrong. I see now that the sizes don't actually directly correspond to the number codes! 01005 is 0.4mm x 0.2mm and 0402 is 1mm x 0.5mm. That's annoyingly confusing, IMO.
Metric mm vs imperial thou. Confusing but at least explainable
With one of those mini-hotplates for reflow soldering and a LCD microscope it's still fairly doable.
FWIW, there's a step by step soldering guide in the readme:
https://github.com/PegorK/f32#building-the-f32
It looks doable, but of course a lot of carefulling is required when placing the components.
infuriating fact: 0402 metric = 01005 imperial, 0402 imperial = 1005 metric. looks like this is the only semi-duplicate in common use.
And that's how I ended up with half a reel of 01005 resistors...
Wait wait wait what? 01005 isn't metric? They switched to imperial for just that size? What?
I was a bit outdated with resistor sizing and I don't have a great sources but apparently there are:
these sizes... and $1 is the one in your mind that shall not be written in inches. The "01005 imperial" is just 0402, so it's not going up to the metric 01005 scale or beyond. I think.