Questions tagged [coil-spring]
The coil-spring tag has no usage guidance.
15
questions
1
vote
3
answers
32
views
What are effective anti-corrosion coatings for high carbon steel springs?
In trampoline design, the most common springs have a total elongation of about 60% of rest lengh. E.g. a 10" spring can be stretched to 16" indefinitely without deformation. These springs ...
0
votes
1
answer
92
views
What does squared end spring mean?
What does squared end spring mean?
In most cases I have seen shown closed and squared springs where the last coil touches the previous one.
But it seems that squared end means that the end is flat, ...
0
votes
1
answer
34
views
What happens while skewing a spring?
I'm trying to design this magazine spring in CAD:
But this spring should be skewed:
When designing the spring, there's one problem, one "leg" would need to be longer than the other for the ...
2
votes
3
answers
88
views
How are springs that are designed for 100% extension different for ones that are designed for 60% extension?
Some trampoline springs extend only 40-50% before reaching their elastic limit. (e.g. a 10 inch spring can extend to 14 or 15 inches. Good springs can extend to 100% (E.g. a 10 inch spring can ...
0
votes
1
answer
270
views
How is energy in the hairspring restored in a mechanical watch?
I've read through the excellent guide to how mechanical watches work by Ciechanowski, but it leaves some questions unanswered.
The main spring of the watch, when it loses energy, can of course be re-...
0
votes
2
answers
95
views
What causes damage to my drone when falling down?
I am trying to design a landing gear system and I am stuck at whether I should use a spring as a kind of shock absorber in my landing gear. Currently, the scope of my project is only concerning about &...
-1
votes
2
answers
175
views
How can I find stiffness of a steel coil spring used in dump trucks?
How can I find stiffness of a steel coil spring used in dump trucks?
Here is the data of the question.
Length of spring unloaded = 220mm
Outer Diameter = 27mm
Inner Diameter = 15mm
Wire Diameter = 6mm
...
1
vote
1
answer
867
views
How to build an Adjustable Tension Spring?
Is there such a thing as an off-the-shelf adjustable tension spring? I've searched extensively without success.
The problem I'm trying to solve is as follows:
I have a tension spring hanging from a ...
0
votes
2
answers
39
views
Sizing a spring
I am attempting to 3D print my own Quad lock mount and require a spring. I've taken some measurements but don't know how to search for where I can buy more springs. Dimensions:
12mm height, 20mm OD. ...
1
vote
0
answers
103
views
How to calculate how much compression is needed for a spring to buckle
First off; School was many years ago and I know little of the mathematics behind all the physics and engineering stuff. So if you have an answer, please explain it like I'm 5?
The goal: I aim to be ...
0
votes
1
answer
640
views
Looking for a compression spring alternative with 10x lifespan
I'm working on a project where 100k spring cycles is gonna last a few months
Any recommendations on an alternative? I considered magnets but their sprigabilty isn't great (also, will they get ...
1
vote
1
answer
59
views
What's the name of a device to simulate an object jumping in the air?
I want to make a film of a puppet jumping in the air into the water of a lagoon. I am looking for a pad with a spring release timer that I can bury in the sand so it's out of sight from the camera, ...
1
vote
1
answer
176
views
Are recoil operated crossbows/ballistae feasible?
This question is specifically about stationary or vehicle mounted crossbows, not man-portable ones
The projectile size would measure about 1.8 - 2 meters in length, so the crossbow would have ...
1
vote
1
answer
75
views
Help with linear rod drill press like design/materials
I am putting together a basic machine for “pad printing” extremely small and precise parts. The design is very much the same as most homemade drill presses and consists of linear rods, flanged ...
1
vote
1
answer
80
views
Overextending and cutting a coil spring
This is related to my recent question
Can I weaken a coil spring consisting of spring steel?. The answer here could create an additional answer there, but I do not expect that. The difference to that ...