I'm designing a safety netting so tools won't fall into the bottom of the furnace and destroy insulation while we're loading our product.
What kind of netting material (metal?) will be able to withstand about 1500 deg. Celsius?
I want to design a double-sided pawl for a 12-pitch spur gear.
Is it ok to use involute gears for ratcheting? Do you need to specifically design the gear with the pawl?
I was under the impression you should not rely on a worm gear to self-lock, but I can see how it's useful in some practical applications. Here's a quote about self-lock from Boston Gear:
"Generally speaking, if the worm lead angle is less than 5°,
there is reasonable expectation of...
What's a comfortable force to turn a handle? The handle connects to a sprocket that will turn 30 ft-lbs, and I'm trying to figure out what's a comfortable force.
Is 10 lbs. a comfortable force to exert over a rotation of ~300 degrees? Should it be 5 lbs.?
I'm designing a ratchet handle with gears to rotate something 90 degrees in either direction, but I want a safety in the form of a ratchet.
I've found two ways to have a two-sided ratchet here...
I want a ratchet to do it.
I was always thinking of using sprockets, but I don't know how to have a safety for that while it's turning. Maybe gear it so the friction will hold it in place?
I'm designing a ratchet lever, and I found a pawl that I'd like to use:
The spring pushes the angled pawl onto the gear, which only lets it rotate in one direction. It allows you to pull up and turn the lever 180 degrees to allow the gear to rotate the other direction.
I've been googling...
