Skip to content

Experimental Engineering

  • The Engineer
    • The Tools
    • The Shack
    • OpenPGP Public Key
    • Contact The Engineer
  • Circuit Simulator
  • Project List
  • Photo Albums
    • Whitby Camping Trip – August 2020
    • Electric Glassware Collection
    • Glasgow Transport Museum 2018
    • Astle Park Steam Rally 2017
    • Anson Engine Museum 29-08-16
    • Download Festival Photo Albums
      • Download Festival 2009
      • Download Festival 2010
      • Download Festival 2011
      • Download Festival 2014
      • Download Festival 2015
      • Download Festival 2016
      • Download Festival 2017
        • Demolition Download IV
      • Download Festival 2018
        • Demolition Download V
        • Lords Of Lightning
        • Circus Of Horrors
      • Download Festival 2019
      • Download Festival 2020
      • Download Festival 2022

Tag: DC motor

Cat Links Teardown

Brother PT-E300 Industrial Label Machine Teardown

Posted on February 22, 2018 The Engineer

Here a tape is installed in the printer. This unit can handle tape widths up to 18mm. The pinch rollers are operated by the white lever at the top of the image, which engages with the back cover. This printer is supplied with a rechargeable battery pack, but AA cells

Continue readingBrother PT-E300 Industrial Label Machine Teardown

Cat Links Bare Silicon

IC Decap – TA7291 H-Bridge DC Motor Driver

Posted on February 25, 2017April 24, 2017 The Engineer

Here’s a jellybean chip – a DC motor driver. This device has all the logic to drive a small motor, such as that used to drive the tray of a CD drive in both directions. The control logic is at the bottom of the die, while the main power transistors

Continue readingIC Decap – TA7291 H-Bridge DC Motor Driver

Cat Links Computer Gear, Randoms, Teardown

HP SureStore DAT40 Tape Drive

Posted on April 24, 2016 The Engineer

Magnetic tape is the medium of choice for my offline backups & archives, as it’s got an amazing level of durability when in storage. (LTO Has a 30 year archival rating). For the smaller stuff, like backing up the web server this very site runs on, another format seemed to

Continue readingHP SureStore DAT40 Tape Drive

Cat Links Randoms, Teardown

Pancake Vibration Motor Teardown

Posted on December 27, 2015 The Engineer

For a while I’ve wondered how these pancake type (AKA “Shaftless”) vibration motors operate, so I figured I’d mutilate one to find out. These vibrators are found in all kinds of mobile devices as a haptic feedback device, unlike older versions, which were just micro-sized DC motors with an offset

Continue readingPancake Vibration Motor Teardown

Overview
Cat Links Randoms

Brightwell Brightstar II BSL4 Dosing System

Posted on November 29, 2012May 12, 2013 The Engineer

Here is an old chemical dosing system for industrial washing machines. These units are 4-pump models, with dual pumpheads. The motors are reversed to operate alternate pumps in the same head. From 2006, this is a fairly old unit, and made in the UK. Main controller PCB, with interface to

Continue readingBrightwell Brightstar II BSL4 Dosing System

Cat Links Personal Project

Zebra P330i Card Printer

Posted on February 2, 2012 The Engineer

This is the teardown of a Zebra P330i plastic card printer, used for creating ID cards, membership cards, employee cards, etc. I got this as a faulty unit, which I will detail later on. This printer supports printing on plastic cards from 1-30mils thick, using dye sublimation & thermal transfer

Continue readingZebra P330i Card Printer

Cat Links Consumer Gear

Brother P-Touch 80 Label Maker

Posted on March 12, 2011September 17, 2011 The Engineer

Here is a label maker, bought on offer at Maplin Electronics. Full Qwerty keyboard with 1 line dot matrix LCD display visible here. Power is 4 AAA cells or a 6v DC Adaptor. Rear cover removed. Battery compartment is on the left hand side, space for the tape cartridge on

Continue readingBrother P-Touch 80 Label Maker

Cat Links Consumer Gear

Sanyo Talkbook VAS

Posted on February 28, 2011February 10, 2011 The Engineer

Here is a Sanyo tape recorder, with built in voice activation. Takes standard audio cassettes. Here visible is the speaker on the left, microphone is on the right of the tape window. The tape counter is at the top. Back cover removed from the unit, showing the PCB & the

Continue readingSanyo Talkbook VAS

Cat Links Consumer Gear

Bosch GSR 14.4v Pro Drill-Driver

Posted on October 14, 2010 The Engineer

Here is a Bosch 14.4v Professional cordless drill/driver, recovered from a skip! It was thrown away due to a gearbox fault, which was easy to rectify. Here is the drill with the side cover removed, showing it’s internal parts. The speed controller is below the motor & gearbox here. The

Continue readingBosch GSR 14.4v Pro Drill-Driver

Tip Jar

If you’ve found my content useful, please consider leaving a donation by clicking the Tip Jar below!
All collected funds go towards new content & the costs of keeping the server online.

  • Electronic Calculators
  • Ohm’s Law Calculator
  • Grid Square Locator
  • Crimp Connector Types

Blogroll

  • Arduino ccTalk Tutorials
  • Distant Signal Radio
  • Skippy's Random Ramblings

Hardware Interfacing

  • Arduino ccTalk Tutorials

Archives

  • Helium Neon Lasers
    • He-Ne Lasers – Introduction
    • Applications of a 1mW Helium-Neon Laser
    • He-Ne Laser Safety
      • Laser Safety Classifications
    • Theory of Operation, Modes, Coherence Length
    • He-Ne Laser Tubes, Heads, Structure, Power Requirements, Lifetime
    • Power Requirements for He-Ne Lasers
      • Modular He-Ne Laser Power Supply
    • Wavelengths, Beam Characteristics
    • Magnets in High Power or Precision He-Ne Laser Heads
    • Internal Mirror He-Ne Tubes up to 35 mW – Red and Other Colours
    • Viewing Spectral Lines in Discharge, Other Colours in Output
    • Demonstration He-Ne Lasers, Weatherproofing
    • Interesting, Strange, and Unidentified He-Ne Lasers

Recent Posts

  • FieldBest I Optical Power Meter Teardown
  • Brsk Updates – A New Network Link
  • Melles-Griot 05-LHR-088 Helium-Neon Laser
  • Infrastructure Updates & The Cost Of Living
  • FTTP Has Arrived – With Some Caveats
Copyright © 2022 Experimental Engineering | Signify Dark by WEN Themes
Scroll Up