BambooFeeder AS2

Overview

BambooFeeder-AS2 is a low-cost auto feeder for the Pandaplacer machines.

All the components can be 3D printed using the models available below.

Improvements over AS1:

Slot-based feeders
Mounting blocks for 13 feeder groups
Easy swap with minimal recalibration
Improved reliability
Precise part location for 4mm pitch and up
Vision calibration via OpenPnP BambooFeeder-AutoVision
- Included support for 2mm pitch for 0402 & 0201 parts
Feeder sizes: 8mm, 12mm, 16mm, 24mm

All models are licensed under CC BY-NC-SA 4.0

The BambooFeeder AS2 parts are provided in multiple files:

All the parts in the 3mf file can be printed with PLA
The TopClampingPlate and TopSpring act like springs and PLA is too stiff, therefore PETG or ABS are required for these parts
The color of the material is relevant only for the support under the tape holes in the part pick window
- It is recommended to use white material with black part tapes and black material for white part tapes
- Using the above colors there will be sufficient contrast for the visual calibration to identify the holes
- Alternatively all feeders can be printed black and a thin plastic sticky label can be placed in the pick window area to provide contrast for black tapes
- For transparent tapes, the visual pipeline usually gets adjusted until the tape holes are located properly for the respective feeders
Mounting block - this was designed for the left and right feeder banks. One mounting block is needed for each bank of 13 feeders for a total of 4 mounting blocks for the machine
- The front feeders do not require a mounting block

Servo arm: use the simplest of the three arms in the package and use the first hole for the screw, cutting the rest of the arm (middle of the 3rd hole). Initial install position/zero position is 180deg (for 0~180deg) or 90deg(for -90~+90deg), the max position. Look from the top, the servo will move in CW when retracting.
Screw: Use M2X8 screws in almost all mounting positions with small holes (including the servo arm).
Tnut: this is the part that gets pushed upwards by the Locker Arm to lock the feeder's position.
Small cover plate: can be optionally used at the front of the feeder and have a label affixed to identify the parts
Alignment: The servo connector has a slot designed at the bottom of the feeder so it plugs into the controller when pushed forward. This is why Block A is fixed onto the machine, to ensure correct alignment with the controller pins
Servo wire vs Controller pins:
- The feeder controller pins for each port are labeled left to right: G, 5v, S, F
- On the servo motor, the brown wire is G, red is 5v, yellow/orange is S (pwm signal)
- The feeder controllers are designed to also support classic 08-16 auto feeders created by Mike Menci ( https://docs.mgrl.de/maschine:pickandplace:feeder:0816feeder ) and therefore they have the 4th pin F for feedback. We may chose to use it in the future.
- The unconnected pin on the controller is the F pin, to the right of the feeder port as the controllers are installed on the machine under the aluminum profiles

Below are pictures of the assembled AS2 feeder

The BambooFeeder AS2 assembly is similar to AS1. A new video will be uploaded soon.

Alternatively @nickyDoes provided a video of the assembly for the pre-release version. Changes to the final AS2 version are insignificant.