Newest Questions
17,063 questions
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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 ...
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Problem with gear teeth when trying cut out a ball joint gear
and thank You for Your time.
For my Batchelor's thesis I am trying to male a robot inspired by the ABENICS Ball Joint. I want to create a monopole gear in Solidworks by continuously pasting a sketch ...
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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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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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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, ...
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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 $\...
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historical suction pumps vs force pumps: do suction pumps put less strain on materials, and require less effort to work?
I'm trying to understand engineering considerations related to historical water pumps, for example comparing the Ktesibios-type pump (Ktesibios, including diagram) and the al-Jazari-type pump (al-...
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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 ...
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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 ...
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Why aren't transistors stacked in silicon chips?
I have learned that silicon chips are manufactured with a base layer of transistors and upper layers of interconnects.
Why can't these upper layers of interconnects be replaced with additional ...
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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 ...
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How is thermal analysis used in your metal post-processing workflow?
I’m looking to better understand how thermal analysis is applied in various metal post-processing operations such as:
Heat treatment, additive manufacturing / 3D printing, welding, brazing, soldering, ...
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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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Design a serial elevator with priority
I am looking to develop a multi-sections telescopic lift, powered by a cable winch. There are existing designs available like on the picture enclosed. I would like to design the system / cable ...
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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 ...
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Why France and Britain abandoned GCR in favor of PWR?
There were many incidents with early gas cooled reactors (GCRs), but it seems most were result of mismanagement and lack of operating experience. It seems to me that GCRs could be safer regarding ...
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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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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 ...
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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 ...
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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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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....
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Is it possible to convert the moment of inertia to the moment of inertia area?
Is it possible to convert the moment of inertia to the moment of inertia area? I need the area moment of inertia to calculate the bending stress on an object. Fusion 360 only gave me the moment of ...
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final year project related retractable awning
I already study about my project has using component eletrical and electronics in my system arduino uno as controller
Inputs (Sensors)
Rainwater Sensor YL-83 Module(to detect rain and trigger awning ...
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electrical enginnering [closed]
Explain the hardware and software of the PLC-based on-off control of a cooling system. Indicate various conditions using lamps. Consider the temperature range of 0 ^ 0 * C to 100 ^ 0 * C and set point ...
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Lens focal length calculator for a 2D target at arbitrary orientation
My camera will be looking at a 22' x 20' rectangular area on the ground from 3' height, which is at a very low angle. All focal length calculators, I found, require target orientation perpendicular ...
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46
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Vehicle collision: between two smaller vs two larger vehicles
Consider the case where two identical vehicles have a frontal collision. Both vehicles have the same speed.
Would it be safer for the occupants if the collision was between small vehicles or if it was ...
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21
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HVAC software(Mechanical Engineering)
Are there any software I could use to simulate a HVAC system(with air conditioning or heating unit with flow rates, pressure and temperature measurements in different areas)?
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FBD of an internal hinge connecting three elements?
I'm struggling with this practice problem. Our teacher taught us to find the internal forces acting on a hinge to make it easier to draw a NVM-diagram. I'm stuck here because I only know how to do ...
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What happens when a steel connection lacks moment resistance to be fully fixed?
Take a steel beam that is connected to two columns with semi-rigid connections that can develop a moment resistance. The beam has a fairly standard detail with two welded end plates which are bolted ...
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Unexpected Yaw Behavior on 4-Axis Gimbal (Yaw, Pitch, Roll, Heave)
I’ve built a four-axis gimbal with three rotational axes (yaw, pitch, roll) and one translational axis (heave, for vertical movement).
The gimbal performs well overall, but I’m encountering an issue ...
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