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Recent content by Bobmat
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Thread wear and failure
Sorry - busy day yesreday. I see your point, and its a good one. When the prototype is made i will talk to the makers about having the thread in a sleeve/adaptor and definitely suggest an acme thread. You've been very helpful, thanks. I will post back after the prototype has been made.- Bobmat
- Post #17
- Forum: Mechanical engineering general discussion
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Thread wear and failure
Aah i see. I am going to see about having a propotype made, probably next week and i want to specify as much detail as i can beforehand. If linear actuators get lots of use and abuse, and use an acme thread then i will have the prototype made with this thread type. With regard to the forces...- Bobmat
- Post #15
- Forum: Mechanical engineering general discussion
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Thread wear and failure
vims - a linear actuator is something i have never seen before, therefore never considered. Having seen how the theory works i will think about whether or not it is more applicable than the system i have for what i am doing, thanks a lot! In the meantime i would still like to find out more about...- Bobmat
- Post #13
- Forum: Mechanical engineering general discussion
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Thread wear and failure
Sorry vim, the nut undoing problem has been dealt with. The push/pull effect and the damage to the thread is what i am refering to.- Bobmat
- Post #10
- Forum: Mechanical engineering general discussion
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Thread wear and failure
vims - The quick release system would be a lot better if i could incorporate it but, as discussed previously, i don't think i can. The push/pull effect would always be encountered when the thread and nut were under tension from the hand-tightening. Would the fact that they would be under tension...- Bobmat
- Post #9
- Forum: Mechanical engineering general discussion
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Thread wear and failure
I'm pretty certain that it would have to be a flat-topped nut, whatever is used it would have to be on the top of the headstock and i don't think that anything protruding from the headstock (other than something already flat, like a headstock) would pass safety standards. My idea would mean that...- Bobmat
- Post #7
- Forum: Mechanical engineering general discussion
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Thread wear and failure
Hi to you all. CorBlimeyLimey and electricpete - SomptingGuy has, for me, answered the question about quick release front wheel problems. On my idea the nut that tightens the arrangement down is not also the bolt that tightens up the headstock, so i am pretty certain hand tight will do - the...- Bobmat
- Post #5
- Forum: Mechanical engineering general discussion
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Thread wear and failure
Hi, i'm really a computer guy but need some advice for a leisure time project, I am making a part for a new kind of adjustable headstock for a bicycle. The handlebars will be able to be turned parallel to the frame making it easier to store and transport with just a few rotations of a nut which...- Bobmat
- Thread
- Replies: 16
- Forum: Mechanical engineering general discussion
