The encoder strip should be laser-printed on sticky label material (ink-jet might work, I haven`t tried it). It is then cut out and wrapped around the barrel of the second drive gear. I used bright white sticky address labels Avery `WeatherProof White Labels` #15510 from my fiendish local Office Depot. The measurements shown on the drawing are to
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fit the second gear of the motor. I cut them slightly longer than the length at both ends so there is a bit of overlap when wrapped around the gear barrel. Here is a 300dpi image of a set of them with cutlines, perhaps positioned to print correctly on the 1x2-5/8" labels specified above: StripePrint. They have a bit of leader on each end to make a good overlap. Clean all the grease off the gear with rubbing alcohol or brake cleaner or something even worse. Then rough-up the gear barrel surface with an emery board or small file so the label will have something to stick to. Then clean everything again and don`t touch the barrel surface. Wrap the cut label strip, starting with the white block, around the barrel. Be careful to keep it aligned with the gear so it goes on straight with no crinkles of bubbles. The last black block should overlap the starting edge just slightly. Then carefully burnish the label down with a piece of smooth hard plastic. (. I just happen to have an old press-type burnishing tool for the job, that shows my age I guess. ). I also put a small drop of super-glue on the joined edges in the hope that this will hold them together, I have no idea, yet, how long these labels will stick to the un-sticky nylon gear. Put the gear train back together the way it was and make sure there is clearance for the stripe as it rotates. During reassembly you can also put a little lube on the gears and bearings (you can get...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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