Sunday, 4 June 2017

The Vise

A vise (American English) or vice (British English) is a mechanical apparatus used to secure an object to allow work to be performed on it. Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever.
 Source: Wikipedia

Monday, 22 May 2017

Conveyor belt with gantry

You can use this model with my rail trolley. But for better interaction with touch sensor you should add bumper between frame and black axle.
For this purpose, I created instruction, you can see on the right. For bigger version -- click on it.

Remember that motor connected to Port A support the direction of movement of the conveyor belt.

Changing the direction of the motor connected to port B is forced alternately by activating the touch sensor.

EV3 Brick assigned ports:
  :: Port 1 for ultrasonic sensor
  :: Port 2 for touch sensor
  :: Port 3 for touch sensor
  :: Port A for medium motor
  :: Port B for medium motor

Tuesday, 16 May 2017

Self-ropelled Rail Trolley

This machine is dedicated to, move on toothed bar or elements with rack, like this one:

  Toothed Bar
  Gear Rack

The base element, that everything is building on is Technic Liftarm 5 x 11 Open Center Frame Thick
Thanks to the size of  used micromotor; I can build more lighter model and have more free space inside the frame.

Wednesday, 26 October 2016

Document scanner with feeder

This is prototype of paper scanner with simple feeder. This version support only one|two sheet of paper per cycle.

Software for this model use openCV to capture and processing with images. You can use web camera that support MJPEG format for this task. For more go to LeJOS Blog.

EV3 Brick assigned ports:
  :: Port 4 for Color sensor
  :: Port A for medium motor
  :: Port B for large motor
  :: Port USB for external camera