LOL! thanks , on both counts!naPS wrote:Damn kid, you soldered that yourself?
Impressive!
ROTFL!!!tango282 wrote:Sweet, can't wait.
Good to know. i havent had that problem with the piezos, but i havent been using these for that long. its possible you got a bad batch too, the lids seem pretty secure on mine, but i'll keep an eye out for that. In their present location it would be pretty hard to snag them accidentally, so i'm not too worried.Oli wrote:Looks great! The piezo element (Murata PK family?) looks identical to one I use on a product - the lids on them have previously come off during shipping of the bare boards, you might want to check that it can't snag on anything when packed.
thanks!Which stepper driver did you decide on using in the end? Keep up the good work!
frob wrote:I mainly use a 20X stereo microscope and pro grade pencil iron for most of it.
LOL no thanks, my eyes are sore and tired enough as it is!orcinus wrote:...Try soldering a QFN with just a pencil iron
I can believe it, but i'd be concerned about overheating the IC's or burning the board. if you do that, make sure the ic's are very dry, or they could "popcorn" if exposed to the air too long prior.Believe it or not, a gas iron (Weller Pyropen) works pretty nicely for reflow soldering.
Actually that's a PTC (polyswitch) to connect the motor supply to main VIN, since i bypassed the usual fast-blow fuse on the board for testing.Anyways, why the bypass cap on the power supply input?
frob wrote:I can believe it, but i'd be concerned about overheating the IC's or burning the board. if you do that, make sure the ic's are very dry, or they could "popcorn" if exposed to the air too long prior.
frob wrote:Actually that's a PTC (polyswitch) to connect the motor supply to main VIN, since i bypassed the usual fast-blow fuse on the board for testing.
frob wrote:Now the real fun begins...
frob wrote:- Blinkenlicht working
frob wrote:Problems so far:
- odd intermittent "USB device not recognized" error plugging in to the PC with power applied prior, need to investigate that further...
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