Quote:
Originally Posted by hrench
Repeatedly people keep mentioning keeping chain tight, which is especially important for #25 chain.
I've looked for a COTs chain tensioner that works like the tensioning device for a chain-saw bar and never seen such an item sold. I want to be able to loosen a locking nut, tighten the chain with a screw, then re-tighten the locking nut.
Does someone make a COTS robot device that can move the axle forward or back by turning a screw? Motorcycles have a similar set-up.
If you google 'roller chain tensioner' you get mostly all idler-wheel add-ons.
This would be an easy item to design and offer for a vendor and for 'dead' axles, you'll have to buy two for each axle bolt that needs adjusted, so potentially, eight on a six-wheel robot. That adds up profit fast.
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The vex tensioner blocks do this with a cam. I would recommend this method as it's very easy to use.
http://www.vexrobotics.com/vexpro/al...gblocks-g.html
Or you can just wrap a zip tie around your chain run in the middle to tension it. No, I am not joking about this. It usually lasts for entire competitions as long as you are using quality zip ties.