sbelectrics's instructables
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- sbelectrics's instructable LED Stairway Safety Night-Light's weekly stats:
- sbelectrics's instructable Make a Custom Length LED T8 Tube's weekly stats:
- sbelectrics commented on waltx's instructable Needle Probe for Electronic TestingView Instructable »
A perfectly adequate probe for occasional use, but I have found that spring-loaded gold-plated test pins mounted in a similar handle are much better. They have some 'give' and the type with multiple micro-points are the best, since they don't slip.
- sbelectrics commented on Palingenesis's instructable Add Decals to Plastic Prints Also DSO138 Oscilloscope CaseView Instructable »
A nice way of applying decals. Have you thought of lacquering over them to make them more durable? (Also, I realise that English isn't your first language, being from Yorkshire, but multiplied isn't spelled wth a 'y'.)
- sbelectrics's instructable HACK CANON 570-SERIES INKJET CARTRIDGES TO FIT MG5550 PRINTER's weekly stats:
- sbelectrics commented on atesgoral's instructable Bike Anchor ChainView Instructable »
A nice security upgrade, compared to a gas pipe ! One possible improvement, used in at least one commercial security anchor, is to employ internal hexagon socket-head screws and tap a ball-bearing into the recess after installation. These are all-but-impossible to remove without a grinder.
- sbelectrics commented on Fall-Apart-Dave's instructable 3D Printing Obsolete Vehicle Electrical ConnectorsView Instructable »
Nice to see a professional-looking way of replacing old connectors. However, the female 'Lucar' female spade connectors you showed are not the correct ones for use in terminal blocks, although they will work at a pinch. The attached image shows the correct type with the retaining tag on the back.
- sbelectrics's instructable CAST IRON HANGING BASKET BRACKETS FROM OLD SEWING MACHINE TREADLE's weekly stats:
- sbelectrics commented on Phil B's instructable Tapping Fixture for a Drill PressView Instructable »
Sorry about that; it's just that in the photograph it doesn't appear that the handle will pass the drill pillar. However, using your idea as the basis, I have now found a spare adjustable side handle from an old SDS drill which clamps nicely onto the knurled part of my pedestal drill chuck so that I can use that to do the same job in future. (The advantage of turning the outer section of the chuck is that it tends to increase the clamping force on the tap or drill as it is turned.)
- sbelectrics commented on Phil B's instructable Tapping Fixture for a Drill PressView Instructable »
Nice use of a drill press to avoid 'drunken threads' as our metalwork teacher used to call them. However, unscrewing the handle each time to move it around the chuck must be a bit of a chore? Could you not spring-load the handle so that it simply pulls out to move it around and the spring holds it into the hole in the chuck when released? (Or even just make the handle telescope in and out by about 5mm to enable pull-to-rotate and push-to-tap operation?)
- sbelectrics commented on MikeTheMaker's instructable Repair Christmas LightsView Instructable »
You should probably mention that the individual lamps come in a range of voltages, from as low as 1.2V up to about 12V, and must match the one you are replacing, give-or-take about 10%, or it will be very dim or blow almost immediately.
- sbelectrics commented on GreatScottLab's instructable DIY Adjustable Constant Load (Current & Power)View Instructable »
A nice modern take on a constant current load I built with a 2N3055, a comparator and a potentiometer many years ago. With all that space inside the case and the built-in ventilation slots, wouldn't it have been tidier and safer to put the heat-sink inside? (The heat-sink can reach well over 100'C in operation.)
- sbelectrics commented on dekeros's instructable Bandsaw BowlView Instructable »
Nice idea. I wonder whether it would be possible to use a similar technique, but cutting a continuous spiral to form the bowl? It would make for a more interesting appearance.
- sbelectrics commented on abzza's instructable Ultimate DIY Breadboard Power SupplyView Instructable »
Nice construction and a tidy layout, but weak on the maths: The R2 value of 48R can't be 18R + 38R. (Probably just a typo.)
- sbelectrics commented on sbelectrics's instructable EXTRA BRIGHT LED FLASHLIGHT / TORCH CORDLESS DRILL CONVERSION (900LM)View Instructable »
Yes, the DeWalt unit does look expensive for the relatively low light output. Unfortunately, as I previously alluded to, both of the other lights you found contain constant-current drives so that they are not simple to dim without opening them and modifying the in-built circuitry.
- sbelectrics commented on mrstan's instructable Repair Dead COB LED Light BulbsView Instructable »
Actually, the place you put the lamp (bulb) is technically known as a light fitting or luminaire.
- sbelectrics commented on gzumwalt's instructable Balloon Powered Single Cylinder Air Engine Toy TrainView Instructable »
A very nice toy, if somewhat expensive, time-wise.(BTW, shouldn't that be 'formerly' in your bio., not formally?
- sbelectrics's instructable Braun Electric Toothbrush Charger Hack's weekly stats:
- sbelectrics commented on sbelectrics's instructable Braun Electric Toothbrush Charger Hack
Thank-you for your comments. I have modified the steps slightly to incorporate your suggestion and added some more detail. I have also re-done the measurements with the actual coil from a scrap Braun toothbrush, so that could be an international 'standard' for comparison.Regards,
View Instructable »Sorry, I forgot to mention that I just used a multi-meter set to A/C mV or A/C mA connected directly across the coil for the tests.Regards,
- sbelectrics commented on amackay's instructable Junkyard Radio to Table RadioView Instructable »
A good reduce/re-use/re-cycle project. Since this is a stereo radio, and there appears to be space for two 'speakers, why not fit two side-by-side? If you have the choice, a regulated power supply would give better sound quality with less 'hum.'
- sbelectrics commented on seamster's instructable Tennis Balls in a Bottle (How-to!)View Instructable »
Rather than squeeze the ball, could you not suck the air out with a hypodermic needle and a vacuum pump? The ball should collapse under atmospheric pressure to ease insertion. The blemish would then be completely invisible and the ball would be fully usable if removed from the bottle.
- sbelectrics commented on elexhack's instructable Make your own IR remote that can reach anywhereView Instructable »
I like the idea of an infra-red extender, but think this is unnecessarily complicated, decoding then re-sending the signal, and will only work with the selected protocol. Would it not be simpler to use an IR detector, amplify the signal, and send it down a pair of wires to an IR emitter in the room(s) with the device(s) you wish to control? This would then work with multiple IR controllers and receivers in any number of rooms.