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Brian “24 Hour Engineer” McEvoy
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2017-05-26 (F) Weekly Summary
Printing a PCB can be rewarding. You have a compact and neat platform to house all the important electronic components. Printing a PCB can be a challenge. You have a lot of constraints and variables that can throw an absolute wrench (spanner) into the works...

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2017-05-25 (Th) Pi0 Laser Tag PiTagErrUs
A Dremel press was set up for circuit board drilling again. A water bottle with an atomizer was used to keep the board damp during the drilling and reduce dust. Most of the dust had a habit of collecting in a heap near the hole rather than scattering and be...

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2017-05-24 (W) Pi0 Laser Tag PiTagErrUs
Yesterday a recipe was found for making usable transfers with the highest chance of success. This was found after many errors. Fortunately, toner washes off easily with acetone. Winning recipe Set iron to high heat Slide the iron across the paper Do not use...

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2017-05-23 (Tu) Pi0 Laser Tag PiTagErrUs
Prototyping circuit boards has not been mastered yet. Inexpensive hobbyist-grade material leads to errors but that is the cost of cheap material. A series of different methods were experimented with. In an attempt to keep the transfer paper stationary (I'm ...

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2017-05-22 (M) Pi0 Laser Tag PiTagErrUs
Yesterday, it was discovered that the board, pictured on the left, had been printed as a mirror image which wouldn't produce a working board. On top of that, the files for making that board had been deleted. Never delete computer files from something that h...

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2017-05-21 (Su) Pi0 Laser Tag PiTagErrUs
One of the etched boards was populated with components, sockets, and terminals. Soldering to the board was more difficult on holes which weren't drilled properly. This simply doesn't happen on well-produced boards. The level of automation in circuit board p...

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2017-05-20 (Sa) Weekly Summary
2xCb+Mic Show page Tim and I have been doing a three-part series on human longevity, this time through medical means. Our third episode was about extending life by stopping and reversing the effects of aging. If you think science has played God in the past....

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2017-05-19 (F) 2 Cyborgs and a Microphone EPISODE 026
2xCb+Mic Show page Due to a vacation to Chicago, editing for this episode was done feverishly. Revisiting subjects like immortality in the editing process brings back my feelings on the subject and sometimes they change. Often, when we discuss things on the...

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2017-05-18 (Th) 2 Cyborgs and a Microphone
2xCb+Mic Show page This recording was our third and final episode on our longevity series. We talked about the idea of helping a human body live well past the current life expectancy through medical procedures. The foremost person in this field is Aubrey de...

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2017-05-17 (W) Index Finger Magnet Removal (Content warning)
Caution - gruesome photos ahead. Okay, I hope this was enough scrolling to keep the gnarly pictures from popping up unexpectedly. Enough background. ---------- Two magnets have been installed in my fingertips for the purpose of sensing magnetic fields. The ...
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