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OpenPnP: Advanced Camera Settling

2020-04-29

Made a new Pull Request to OpenPnP. When the Camera needs to take a picture for Computer Vision, it needs to be stable, i.e. all machine motion, vibrations etc. must have ceased. For the machine to be fast, this should be adaptive tho the motion that the camera observes. The …

OpenPnP: Advanced Vacuum Sensing Part-On/Part-Off Detect

2020-04-29

Made a new Pull Request to OpenPnP. Vacuum sensing part-on/part-off detection was significantly expanded to allow for differential vacuum level assessment and adaptive dwell times. Adds graphical diagnostics. Easier setup with Measurement Method combo box. Detection can be switched off without having to overwrite your values. The method combo box …

New All-3D-Printed Tape&Reel Feeder

2020-04-12

Introducing the new PushPullFeeder, the hardware side of the ReferencePushPullFeeder in OpenPNP. Inspired by Dining-Philosopher’s Litefeeder and Jed Smith’s Litefeeder++ friction wheel, this feeder has the following design goals and ideas: Use case: prototyping/very small runs. All 3D-printed, no hardware (screws, springs etc.) required. Complete solution: reel holder, feeder mount, …

OpenPNP: New ReferencePushPullFeeder

2020-04-10

Made a new Pull Request for the ReferencePushPullFeeder class in OpenPNP (Update: the PR is now merged into OpenPNP 2.0). This is the software side of the all 3D-printed PushPullFeeder: Generic implementation for a feeder that can feed parts by performing push and pull (and other) motions using a head-mounted …

OpenPNP: New BlindsFeeder

2020-01-19

This is a new cut-strips feeder for true prototyping and very tiny runs. It is considered the “next step up” from the ReferenceStripFeeder.

OpenPNP: Actuator based Pick+Place, Contact Probing Nozzle

2019-11-24

As part of the general overhaul of Version 2.0 of OpenPNP and as the basis for a new ContactProbeNozzle, the vacuum pump, valve and picking and placing have been reworked into a unified Actuator based design.

Smoothieware: Adding Mid-Axis Homing

2019-08-23

(footage credits: Mike Menci) Pick&Place multi-nozzle machines share one physical actuator to create the two nozzles’ Z axis in a counterweight, seesaw or rocker configuration (when one is moving up, the other is moving down).

OpenPNP: Improved Runout Compensation, Bottom Camera Calibration

2019-06-07

To improve OpenPNP nozzle and nozzle tip runout compensation, I added a new calibration model, automatic (re-) calibration and also a bottom camera position and rotation calibration.

Smoothieware: Problems with mixed Axes

2019-05-17

The motion controller firmware most popular with OpenPNP – Smoothieware – had problems with mixed primary (linear) + secondary (rotary) axis moves. I tried to fix that … read the saga about that in the Pull request ;-).

OpenPNP: Extending Bottom Vision

2019-05-10

To improve accuracy of placement and to support multi-nozzle machines with shared rotation axis, I extended bottom vision with pre-rotate in OpenPNP.
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Tags

3D Print Build Camera Feeder Firmware Grounding Liteplacer Motion Control OpenPNP PCB Pick&Place Pull Request Safety Smoothieware TinyG Vacuum Sensing Video Vision

Recent Posts

  • OpenPnP: Multi-Shot Bottom Vision
  • OpenPnP: Automatic Machine Calibration with Issues & Solutions
  • OpenPnP: Nozzle Tip Changer Vision & Z Calibration, Part Height Sensing
  • OpenPnP: Camera light actuators and more
  • TinyG: New G-code commands for OpenPnP use

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