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Timing Belt Tensioner idea

Posted by jupdyke 
Timing Belt Tensioner idea
March 09, 2010 08:46PM
I was looking at some pages and found this idea for a really simple timing belt tensioner. This might be of some use.

Timing Belt Tensioner


Edited 1 time(s). Last edit at 03/09/2010 08:46PM by jupdyke.
Re: Timing Belt Tensioner idea
March 10, 2010 12:41PM
DOH! Why haven't I ever thought of doing that???
Beats the heck out of the tension spring loaded idler pulley design
that I typically use. And I'm going to try it tonight on a design I've
been working on.
Re: Timing Belt Tensioner idea
March 10, 2010 03:20PM
That would also work well with the steel wire cable I was thinking of using for a new McWire design I am trying to call Mike Wire. I had already though of using a tension spring to close the loop in the drive cable. This would take up less room that could not go around any pulleys. Speaking of which, where did you find the plastic pulley you are using there? And what of the drive pulley attached to the stepper motor? Did you tear apart an old inkjet printer?


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Re: Timing Belt Tensioner idea
March 10, 2010 05:54PM
That bit of metal wire looks a hell of a lot like the middle of my clothes pegs that I use to dry my clothes with. I wonder if it could be adapted?



Re: Timing Belt Tensioner idea
March 10, 2010 07:21PM
Clothes pins, either plastic or wooden, definitely look like a good, cheap source. But there are other [Google sources]
Re: Timing Belt Tensioner idea
March 11, 2010 04:44AM
Actually I am not the one who came up with that idea. I was just surfing the internet and looking for robotic stuff and found that. I thought it was a great idea and could help some other people out. I do really think its part of a close-pin as well.

Re: Timing Belt Tensioner idea
March 11, 2010 07:52AM
You guys really should start doing your own laundry.

It is the small metal spring from a clothespin
Re: Timing Belt Tensioner idea
March 12, 2010 02:17PM
Crosspost for the BitsFromBytes RepMan (Y-belts and X-belt)

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Re: Timing Belt Tensioner idea
March 29, 2010 07:17PM
I used this tensioner idea in my belt converted McWire. It worked great! Thanks for the idea.

Re: Timing Belt Tensioner idea
April 13, 2010 04:28AM
I dismantled an old flatbed scanner to salvage the stepper motor. The drive belt was tensioned the same way.
I believe this is standard in inkjet printers and flatbed scanners.
A clothespin spring might be a to hard for this purpose.
Re: Timing Belt Tensioner idea
June 05, 2010 05:07AM
The spring shown is the standard used in every flat bed scaner I have seen so far.

Another neat tensioner Idea used in inkjet printers looks a bit like a lollypop on a spring or bike front fork with suspension.

The round parts a pully on a stick, a spring is on the stick thats mounted through a U bracket thus providing a compresion belt tensioner.

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Re: Timing Belt Tensioner idea
September 16, 2010 06:16AM
Anybody any ideea were to buy these springs. I fiddled some myself but I would like the real thing.
Re: Timing Belt Tensioner idea
September 16, 2010 06:40AM
If you can buy or scavenge some wooden clothes pegs, they use these springs. Failing that, the google product search linked above lists a couple of suppliers.
Re: Timing Belt Tensioner idea
May 13, 2014 05:19PM
Thank you guys..... You've given me a really good idea....
The problem is I'm in Wales, and they get thier pegs from Gypsies around here....
(No springs)

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