Most active questions
21 questions from the last 7 days
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Why steam locomotive pistons don't have inertia?
Looking at steam locomotives, the wheel bars that go in and out of the cylinder change direction instantaneously.
There is no gradually slowing down in the original direction then coming to a halt, ...
- 1
0
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1
answer
68
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Axial load profile for a submerged pipe. How can this textbook be correct?
In "Well completion design" by Bellarby, first edition (2009), the author discusses buoyant force and gives an example of an open-ended pipe which is partially submerged in liquid and ...
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1
answer
41
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Why are maritime salvage operations so rare?
I am having a discussion on why we rarely recover ships that have sunk, while we have repeatedly landed on the moon, which is also a tremendous engineering challenge.
The discussion boiled down to ...
- 101
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1
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35
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What happens on loss of coolant in gas cooled nuclear reactor?
For example if gas cooled nuclear fission reactor loses its coolant (CO2 or helium) due to a leak, what would happen. I expect it would be replaced by air which, if I understand correctly would ...
- 101
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2
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23
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Make T-nut for drill press table T-slots using basic garage tools
I have a 15-inch Mastercraft drill press that has a table with T-slots.
Approximate T-slot dimensions:
Bottom slot width: 29mm
Top slot width: 15mm
Slot height: 19mm
I want to use drill press locking ...
- 523
0
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1
answer
32
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Is this "thermo-couple" ok to use?
I was deep-cleaning my Indesit gas-oven. I believe that the parts seen in pictures of that imgur-link are called "thermo-couples". One of them is for the grill, the other for the actual oven....
- 103
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0
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30
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stresses in framed structures using Cremona/Maxwell diagram
In the picture above, is fig 9 correct?
Using the scale in pounds shown there, the 70LBS line seems to be correct, where line a seems to be more or less 110 lbs and line b seems to be more or less 130 ...
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1
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Was computing technology advanced enough to achieve a nearly fully automated economy in the mid-20th century?
I came across a very interesting Reddit post from a Redditor who claimed that he had worked as a software engineer for nearly 20 years. He said the following about the world's capacity to fully ...
- 101
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0
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22
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Wall thickness for a polycarbonate camera case, pressure resistant to 1500kPa
I may never make this (budget) but I'd like to understand what wall thickness an irregular shaped SLR camera housing would need. I'm not after optimum, I'm after safe but reasonable over-engineering ...
- 101
0
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0
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28
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How would I attach a riser to the side of my headphones
I am working on a project where I'm going to attach some buttons and an ESP32 to the side of my headphones. The problem is that the side of my headphones isn't flat:
Because I want to mount the ESP32 ...
- 3
1
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1
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24
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Bending from a point load on a ring beam
If I design a ring beam to take a point-load bearing, do I need to consider a bending effect?
I assume this will function similarly to a footing, where there is bending even though it is supported ...
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0
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24
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Excessive play in revolute joints for a SCARA
Not a mechanical engineer here. In fact, I have no experience whatsoever prior to this project. I am a master's student and I study robotics and artificial intelligence, although robotics from a ...
- 1
0
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2
answers
21
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Uncertainty of difference in measurement over time
I have time history data from a pressure sensor. According to its calibration, the sensor measurement has uncertainty $\sigma$. I am seeing a pressure drop over time where the change is less than $\...
- 791
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0
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21
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what is the best material and design for a toy race car?
I might be a little too young to be on this website, but my teacher told me to do this project.
here's the rules:
Design Rules:
Dimensions
Maximum length: 25 cm
Maximum width: 12 cm
Maximum height: ...
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0
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19
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Solidworks - linear pattern remove per instance application of end condition of a feature
I created a hole feature using extrude cut that has an end condition of "up to surface". The surface that I am referencing to satisfy the end condition of the extrude cut is at an angle to ...
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