I'm thinking of building up a similar sort of dyno but I've mostly sold myself on using a car flywheel as they can spin up to 5-6000rpm which will be good for the 2:1 or 3:1 reduction I want for testing chainsaws.
@@blanchae it would be with great pleasure,I wanted to tell you that your method of measuring inertia is the most perfect,and it far exceeds computer calculations in accuracy,I only changed the tachometer with hall effect coupled to Arduino modules for more accuracy، we get the same numbers on a professional tachometer,for the grip of the wheels, I made horizontal grooves, let's take advantage of 2 mm deep, 2 mm and between each groove 7 mm, no need for big means to make them I made a tool with a rail system to stay straight and fix the tool, once again thank you for the inestimable amount of knowledge that you leave with us
![DIY Hub Dyno: Introduction [1]](http://i.ytimg.com/vi/_O0IQ4RY5pc/mqdefault.jpg)
I'm thinking of building up a similar sort of dyno but I've mostly sold myself on using a car flywheel as they can spin up to 5-6000rpm which will be good for the 2:1 or 3:1 reduction I want for testing chainsaws.
That is an excellent idea - using a car flywheel. Maybe a truck flywheel might be better as it's heavier.
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Maybe one day!
@@blanchae it would be with great pleasure,I wanted to tell you that your method of measuring inertia is the most perfect,and it far exceeds computer calculations in accuracy,I only changed the tachometer with hall effect coupled to Arduino modules for more accuracy، we get the same numbers on a professional tachometer,for the grip of the wheels, I made horizontal grooves, let's take advantage of 2 mm deep, 2 mm and between each groove 7 mm, no need for big means to make them I made a tool with a rail system to stay straight and fix the tool, once again thank you for the inestimable amount of knowledge that you leave with us