An ‘oscilloscope’, previously called an ‘oscillograph’ and informally known as a scope or o-scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that graphically displays varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time. Other signals (such as sound or vibration) can be converted …
2019.06.24(pm): Converting belt gearing to coupling using a drilling machine
The coupling I have is a bending coupling. This coupling is not appropriate because I need a rigid and well-fixed shaft. So I plan to make a rigid coupling with this belt gear fixed shaft. Drill the inner diameter of the coupling to 6mm to fit the motor shaft, and make a 3mm hole in …
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2019.06.24(pm): Cutting the Carbon pipe
Even a scrolling saw can cut carbon pipes, but the vibration is severe and takes a long time. Makita 305MM Slide Compound Mitre Saw 1650W When cut with the Makita blade saw, the noise was very bad, but it was neat and precisely cut, and the length of the saw was lost from the carbon …
2019.06.06(am): Electric Melting Furnace
2019.06.01(pm): How to make 18560 Li-ion battery pack(11.1V, 3S, 7800mAh)
Insert battery into holder Capon tape winding Welding on nickel plate Soldering the protection circuit Put in shrink film
2019.05.31(am): How to connect 18650 battery pack with protect circuit
18650 Li-ion battery The 18650 lithium-ion battery is 3.7V per battery, 4.2V when fully charged. Unlike an alkaline battery, a lithium ion battery can be used as a rechargeable battery and has a large battery capacity. But be careful of the impact. There is a risk of fire if the battery is stung or shocked …
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2019.05.18(pm): How to use variable speed scroll saw
I used a scroll saw today to cut the legs of a tensegrity robot. It is a product of REXON company and can control the speed. It operates at 220V and uses 125W of power. The product name is VS4005A. In the picture below, the left side is the power button and the right side …
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2019.05.17(pm): In 3D printing, if the filament continues to fall off the bed, what is the solution?
There are several reasons why filament falls off from bed. At first, Is the gap between the nozzle and the bed too wide? If the distance between the extruder and the heating bed is too wide, adjust it by software. Second, Temperature of the heat bed.Try increasing the heat bed temperature. If the bed temperature …