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A Meccano pinion mating with a large Meccano contrate wheel is quieter than using a pair of Meccano bevel gears as the contrate gears are actually made with better shaped gear teeth than the bevel gears, where the machining was a bit iffy to say the least.
Good engineering practice would suggest otherwise, but having said that large contrate wheels can be found in many windmills and water mills transmitting lots of power. _________________ Unexpected item in bagging area.
I couldn't believe the noise difference I overlooked the fact you were using a drill and actually thought you were using an engine to drive it and was going to say the sound is most likely the engine
I have been mucking around with some meccano today and was trying some different setups. I can't help but think the ply is amplifying the sound..... or whatever the technical term is. Basically amplifying it/acting like a speaker type situation.
Perhaps a some form of dampener between the brackets and the walls would help. Inner tube cut out might work.
A fair while ago I made a similar setup on MDF. I can't recall it ever being that noisy. I hate MDF so moved it to ply and recall it was a bit louder. The video is on photobucket so unfortunately I can't give a link or even watch it anymore.
Worth a try. Or place some grease like what is used in RC gearboxes on the gears as a starter.
I think you are right about the sound with ply. I had planned mdf but it is not nearly as versatile. Good idea about the grease, I have heard graphite grease is good.
I have a few rubber washers and will them as dampers. Never thought of that😀
As to progress, I spent a lot of time trying to glue cord that did not want to glue...bought some nitrile cord and it works.
Not much time the past couple of weeks. Today made a bracket to help drive a flexible grinder from above.
Once it works from steam I will dismantle for painting etc😀
Thanks for the advice👍 _________________ Lawrie
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