Questions tagged [timing]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
2
votes
0answers
30 views

Exceed 'designed' speed ratio of timing belt

I'm trying to create a setup to transfer motion from a motor to a shaft that requires a much higher torque (bi-directional). The housing is about 6 inches long and the speed ratio needed will be ...
-1
votes
1answer
20 views

Understanding a Variable Lift Valve Train Patent

So my father has this patent, and I'm not entirely sure how a certain aspect of it is supposed to be working. I understand how it can be useful, but I don't understand how such a seemingly simple ...
3
votes
2answers
38 views

How to estimate the time cost of interrupting a task and picking it up again later

In terms of personal productivity (single machine scheduling) when a task is interrupted before being done in order to switch to a different task, it incurres a 'tear down' time cost - putting tools, ...
5
votes
2answers
793 views

How to mount timing pulleys/belts for small DIY project

I'm building a rotating lamp for a small DIY project to learn about motors and timing belts/pulleys. As I am learning, finding parts that are small enough, fit a stepper motor shaft and reasonable ...
0
votes
1answer
64 views

air resistor decreasing resistance over fixed time

Imagine I'm breathing through a wide straw/tube in my mouth. At the far end of the straw is a resistance mechanism. I want it to be that as I exhale there is no resistance, but as soon as I start to ...
1
vote
1answer
1k views

How to design a gear escapement like in an old pendulum clock?

I've already got a gear that has its teets as in the picture: I want to create the mechanism from the picture, but it's harder than I expected. I think my gear is not the problem. But I'm not able to ...
0
votes
2answers
97 views

Is there a device like this? [closed]

I would like to get my hands on a mechanically-set timer (wind up is fine, so that it's self-powered) which sends a small electrical pulse to a mag-lock once the timer goes off, thus causing the mag-...
1
vote
1answer
267 views

Timing belt transmission with lateral pulley movement

What is the correct way to allow for lateral movement of a timing pulley in a transmission system? For example, there are four pulleys, one of which has to move up and down. Is there standard ...
3
votes
1answer
133 views

How did Al-jazary's “castle clock” work?

My question is what are the ideas behind the complicated historical water clocks. According to wikipedia, modern versions of the historical water clock rely on the principle of the syphon. So I ask ...