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2Instructables3,442Views9CommentsBrookfield, WIJoined August 9th, 2015
Electrical Engineer by training; Electronics Nerd before it was fashionable.

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  • ee_eng commented on androkavo's instructable Wooden Digital Clock4 weeks ago
    Wooden Digital Clock

    Very nice job. Great video overview of what/how you did it. Very well done. You've included a lot of general info on WIFI, Packaging, Display, etc. that can be leveraged for other projects.Thanks for your efforts, all the details, and wiliness to share!

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  • ee_eng commented on Thomas Workshop's instructable 3D Printer - Working Area 40x40x40cm2 months ago
    3D Printer - Working Area 40x40x40cm

    Great piece of work! Thanks for the complete PDF design of the base parts. You have inspired me to go forward and build a printer! I will build need to recreate your design in Solidworks as that's the vehicle I use to make the g-code that drives my CNC mill.Based on your comments, I will look into using heavier gauge channels, components, and plate stock to drive up overall rigidity. This will be particularly important as need to eliminate the welded base since I don't have ready access to that technology.I will watch for your response to HOT END head choices as well as a few of the other question below. Take care and thanks again!

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  • ee_eng commented on replayreb's instructable Laser Box Music Laser Light Show2 months ago
    Laser Box Music Laser Light Show

    Interesting project. I was happy to see your cautions about metal cutting while fabricating parts for the unit. Excellent Job! However, I didn't see much mention of the hazards coming from the laser light beam. You have spec'd 100mw lasers, which relatively speaking, are very high power units. For example, the typical "cat toy laser" outputs less than 5 mw and even those are unpleasant to the eyes when viewed directly. 100 mw lasers should be considered EXTREMELY HAZARDOUS when viewed directly. At these power levels photochemical damage to the retina (retinal burn) is clearly possible, and highly likely if viewed repeatedly or for an extended period of time.This hazard exists for the builder (especially during setup and alignment) as well as the casual observer once this...see more »Interesting project. I was happy to see your cautions about metal cutting while fabricating parts for the unit. Excellent Job! However, I didn't see much mention of the hazards coming from the laser light beam. You have spec'd 100mw lasers, which relatively speaking, are very high power units. For example, the typical "cat toy laser" outputs less than 5 mw and even those are unpleasant to the eyes when viewed directly. 100 mw lasers should be considered EXTREMELY HAZARDOUS when viewed directly. At these power levels photochemical damage to the retina (retinal burn) is clearly possible, and highly likely if viewed repeatedly or for an extended period of time.This hazard exists for the builder (especially during setup and alignment) as well as the casual observer once this unit is put into use. Furthermore, REFLECTED LASER LIGHT (for example off of a shinny or mirrored surface) redirects the hazard at nearly "full power".This means that the laser box builder must take extreme caution and should wear color specific laser eye protection (different for each laser color used) to protect his/her eyes during setup. Then, once in use, the device must be located to prevent any chance a light show observer might be able to view the laser beam directly OR off of a non-diffusing (aka mirrored, shiny, or metal) reflective surface.Minimally, builders, buyers, and installers should review laser safety guidelines and wear eye protection before going forward with their task. There's lots of data available on the WEB for his topic. I suggest a starting point for laser safety information to be: https://en.wikipedia.org/wiki/Laser_safety

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  • ee_eng commented on makjosher's instructable The Ski Sled2 months ago
    The Ski Sled

    Great project & really good video's!Rarely is a design perfect first time. I really liked your videos that showed your early tests followed by iterative improvements. I did notice that as Toga_Dan commented, your videos showed that you had already moved the steering links to a below deck approach - a good safety improvement. You might want to consider using heavier (aka: thicker walled) channels as this would give you greater strength, increased design margins, and the ability to handle larger payloads (bigger people).Again, excellent videos and graphics.Take care and keep up the good work.

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  • Making DSO Nano V2 & V3 Oscilloscope Probes

    Nice job reviewing what's inside a scope probe and creating a low cost hobby version. Most certainly, these probes should work well with the scopes you show within your article!!It is quite common to adjust the compensation capacitor each time you move or attached a scope probe to the scope. In fact, most commercial scopes provide a calibrated square wave signal source on their front panel with which to connect and perform the compensation adjustment. I would expect the variable cap will hold up just fine for the occasional adjustment needed when moving probes around.

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  • ee_eng commented on taifur's instructable Complete Motor guide for Robotics1 year ago
    Complete Motor guide for Robotics

    Very nice compilation on motor technology and basic control methods. Lots of work pulling this info together! Your explanations were very clear and concise.Great background material that will help be down the rode. Thanks for sharing!!!

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  • ee_eng commented on ee_eng's instructable Arduino Project Box1 year ago
    Arduino Project Box

    Thanks for your comment...I agree, pretty crude, but cheap, quick, and rugged! Take care!

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  • ee_eng followed Clocks, Microsoft, Science, Reuse and 1 other channel 1 year ago
  • 15 Minute Spindle Lock Upgrade for Your X2 MiniMill

    Thanks for your comment. I've found this upgrade useful in that I don't get frustrated looking for the lost spindle-lock-pin anymore! Enjoy!

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  • ee_eng followed CNC channel 1 year ago