(Re)designing The LumenPnP Tape Feeder

Most of the {hardware} oriented hackers amongst us will most probably were following together with the tale of [Stephen Hawes] and the Lumen pick-and-place undertaking however roughly ready a little for the undertaking to mature some extra sooner than possibly taking the plunge and ordering a package. One reason why for this could be that while the elemental system design is there and dealing, the tape feeders did desire a good bit of labor, and a loss of usable feeders does now not make a really perfect PnP system. [Stephen] has been running on a more recent design that addresses probably the most known shortcomings, and has began documenting his growth (video, embedded under) alongside the way in which.

Long past is the PCB-based ‘case’, reverting again to a three-D printable affair and a way smaller PCB. After flip-flopping a little between other geared DC motors, [Stephen] settled again at the unique, smaller unit, which after a wee spot of hacking, was once satisfied to simply accept an optical encoder stripped from some other unit, and this proved that it was once certainly greater than as much as the tape-advancement responsibility. The cause of this modification was once bodily length — the unique motor ended in an meeting 38mm large — this restricted the quantity for feeders at the entrance rail to slightly eleven devices. This isn’t truly sufficient, however with the narrower meeting, the width is lowered to 15.5mm permitting 27 feeders to snuggle in combination at the rail, and that are meant to make the system a lot more usable.

Every other space of outrage was once the quilt tape peeler. It’s important that because the tape advances, for every selecting

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One ultimate space for fear was once that the mounting approach of the feeder unit onto the entrance rail (which looks as if a period of 2022 extrusion) was once a little wobbly, permitting motion in a couple of instructions, and that’s now not nice for repeatable selecting, even with the superior OpenPNP imaginative and prescient gadget dialling it in as easiest it could actually. The redesigned enclosure is formed to the rail profile, permitting it to suit tighter and is retained beneath rigidity with a replaceable three-D published flexure. A handy guide a rough ‘snap’ and it now locks in position beneath rigidity and the wobble is historical past.

We’ve clearly (*2*)coated the LumenPnP just lately, and (*3*)right here, just a little previous and we’re now not going to finish the tale simply but. The system is now beginning to glance much more viable for the ones people who do a large number of PCB meeting runs in small amount, and we’ll certain be staring at growth intently within the coming months!

(*1*)[embedded content]

Due to (*11*) for the end!