Teardowns

Archive for the ‘Teardowns’ Category

World’s Smallest Stepper Motor with Arduino and EasyDriver


This little wonder of electromechanical engineering came from inside a laser diode sled of an HP CT10L Bluray drive I’ve opened some time ago. The device on the picture consists of several parts, all easily fitting on a dime coin: a bipolar stepper motor with lead screw, a linear stage, a lens, and even an end position sensor (I’ve yet to make use of the sensor though). The entire assembly is only 14mm x 9mm x 4mm. This post is about making this tiny motor move. Keep reading! Read the rest of this entry »

Blu-Ray Teardown – HP CT10L BD-ROM / DVD Rewriter

HP CT10L BD-ROM/DVD R/W drive , ready to be disassembled

HP CT10L BD-ROM/DVD R/W drive , ready to be disassembled

Even though it takes me much longer than I anticipated, I’m still collecting parts for the laser cutter based on broken CD/DVD/Blu-ray drives. This time I decided to open a Blu-ray drive for the first time, never had a working 405nm laser diode harvested from a Blu-ray drive before.

This time the broken drive teardown is performed on an HP CT10L BD-ROM/DVD Rewriter drive (HP part number HP nPC P/N:491775-6CO). This is an older drive (manufactured in October 2008) and I expected it to have some useful parts – my experience has been that the most useful for disassembly parts are usually from 2003-2008 time frame. I was surprised to find not only two useful laser diodes inside but also an interesting part I did not expect to be in there … Read the rest of this entry »

DVD teardown – Toshiba TS-L462 CD-RW/DVD drive

Toshiba TS-L462 CD-RW/DVD drive ready to be disassembled

Toshiba TS-L462 CD-RW/DVD drive ready to be disassembled

I’ve been using old computer parts for ages now, have steppers removed from 5.25″ floppy drives that should belong in a museum at this point. But more recently I’ve started digging into DVD drives, more specifically, the burning kind, DVD-R/RW, for laser diodes, as evidenced by my other posts here. All with an eye on cutting stuff with them on a CNC rig. So, in my search for a perfect laser diode donor drive I’ve opened some 10+ types of drives and I am documenting the teardowns just in case I need to look at the parts and know where they came from. I though it may also me useful to post the pictures for other people to see. If you’re looking for a high-power red laser diode and have a Toshiba TS-L462 drive in front of you, I hope this post will save you a little bit of time because … Read the rest of this entry »

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Recent Comments
  • Dokta: Thank you for your response and forgive the late reply. Unfortunately I have been away on ‘family...
  • ed: Agreed,pulseIn and shiftOut work as well on the Attiny13, but seem to take 52 resp 45% of program memory. Not...
  • ed: Install the core for Arduino IDE 1.6.0 and 1.7.0: https://arduinodiy.wordpress.c om/2015/04/26/installing-at...
  • ed: I only have the 13A and that goes very well
  • Jean: I got it solved already. Apparently there needs to be a analogReference(0); statement in the setup. then it...
  • Jean: I actually have the same problem, a small code reading the ADC on physical pin 2 and 3 (thus ADC 3 and 2) It...
  • Gaz Cripps: Hi, Great article. I wish I had found this a long time ago. I’ve collected all the parts that I...
  • Ignas: Thanks for sharing information! I made my version of this project targeted for very slow speeds(gimbal motors)...
  • smeezekitty: Well, yes. Floating point math means it has to link in the FPE which is very large. I suggest avoiding...
  • Edwin (different one): Very good article. I kindalost over the time what cores I am using so now I am in the...
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