Questions tagged [design]
Questions about or related to design.
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What does this line with cross means in the blueprint?
In this blueprint, there's the line with a cross with diameter of .115 at the far right side.
What does this line means?
Does it means that the section with length ...
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How to calculate the force required to move this pawl that swings on a pin?
The structure (pawl) is rotating about a pin and is pushed forward by a spring. I want to calculate how much force it requires to push the pawl forward with the spring. Since the spring is only ...
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NOx emissions in diesel engines
What are the specific challenges and potential solutions for reducing NOx emissions in diesel engines without sacrificing fuel efficiency, considering the trade-offs between various aftertreatment ...
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Capture an Impulse (As Opposed to an Impulse Response)
I want to see if there's a method by which you could capture the characteristics of an impulse source, rather than the response of the system to the impulse.
Normally, when attempting to capture an ...
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Engineering graphics for robotics
I am intrigued by robotics and wish to pursue it with a fundamental approach. Could you recommend some valuable courses, links, or books that can help me begin my journey in engineering graphics?
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Determining bearing pressure between mating convex and concave conical surfaces?
(In the illustration above, the "Collet" piece in the middle is a bushing)
I'm designing an axial linkage of sorts, and I'm having trouble finding resources, theorems, or guidelines for ...
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Lifting a table using linear rails and linear actuators
I'm trying to design a coffee table for a tightly constrained space that can lift up to become a dining table. I've drawn the CAD for this design, but I'm concerned that the moment arm on the linear-...
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Autocad Change Properties for All Object
Does anyone know how to change the Vertex X and Vertex Y value for all of the dots? Because some of the red dots has a different vertex X and Y value which also causes the shape to be slightly ...
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What design could fit this egg drop challenge?
My class is doing the egg drop challenge as a school project, but the rules are a little different than normal. First of all, the construction needs to contain a microbit connected to a battery pack ...
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Looking for book/notes about designing rotatry indexer cam
I'm looking for a book/notes about designing a rotary indexer like in this video (the first system until 34 sec):
https://www.youtube.com/watch?v=2atiOFA-qnQ
For example, I need table= top plate with ...
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How can I calculate the bending and compression stress on my pawl?
I am working on a project where I am designing a linear ratchet and pawl locking mechanism for a lift. The pawl is going to have to withstand 6000 lb of weight that is going to be transferred by the ...
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Replicating an impact impulse
I am building a test-rig for a device. I have operational data showing the device experiences impact loads resembling a half-sine pulse with width dt and magnitude F. The test rig's purpose is to ...
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Are there any examples of a "Combustionless Turbine" or a "Stirling Turbine"?
So, as shown in this video (already in the time stamp I'm referring to), when you pressurise a gas in a contained space and then heat it, the pressure will increase twice as much (or depending on the ...
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Residential 120V AC vs 12V DC
Can I repurpose residential LED lights (slim, 120V recessed) for my RV by directly providing them with 12V DC power, or is a more accurate approach required to bypass the existing circuit board?
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Force applied on a ferromagnetic shaft by a coil
I have a perfectly cylindrical ferromagnetic shaft (say, made out of iron). I want to apply an axial force on the shaft (along the centerline of the cylinder) using a coil through which an electric ...
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Can somebody please explain this Design for Welding guideline and its use case?
This is the rule. Please help. Also identify a usecase.
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What would be an ideal material to use for O-rings on a canister in a lubricant-less, high-velocity pneumatic tube system?
I am interested in building an experimental lubricant-less pneumatic tube system in which the canister will be propelled up to a high-velocity, reaching a peak velocity of approximately 100 m/s before ...
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How can I calculate the required dimensions for a linear ratchet and pawl locking mechanism?
So I am trying to design a linear ratchet and pawl locking mechanism similar to the one seen here: https://www.pond5.com/stock-footage/item/168050349-locking-mechanism-car-lift-when-lifting-car-repair....
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A rotating, elevating platform driven by drive shafts
I have never built anything with gears before, and I find myself needing to do just that. Given that I have very little background, I'm mostly looking to be pointed in the right direction.
The Task
I ...
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Planar linkage design based on output curve?
I have the following path,
The smaller radius isn't a hard constraint but the other dimensions are. I have a continuous rotation as the input & would like to design a planar linkage where the end ...
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Mechanical Clock Oscillation time too small
I am trying to build a mechanical clock, but my pendulum doesn't swing for very long when stopping. Increasing mass only takes me so far. In this video, he uses a much longer pendulum than 25 cm, but ...
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Improving O-Ring/flapper valve injection mold ->non-engineer
I make specialized flapper valves that are similar to O-Rings. The current model uses aluminum sheets as base disks that adhere to the rubber (2 part urethane). The rubber is poured into the waxed ...
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Calculating the pivot angle to rotate an object 90 degrees on both the X and Y axis with an angled 1DOF movement
I need to rotate a rectangle (rectangle 1) that is parallel to another rectangle (rectangle 2). In doing so I need to change the orientation 90 degrees of rectangle 1 so it is perpendicular to ...
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What is the relation between metric thread nut hexagon diameter and the major diameter
If we a M12 bolt what will the relation between the major diameter and the hexagon diameter be?
If we calculate it geometrically it should be $E(Hexagon\space diameter)=\sqrt{3}d(major \space diameter)...
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how to calculate drag force (to be used later in the calculation of drag coefficient)
I'm working on a school project for car design (M segment car) we already found an open source Toyota model and can get the final answer online, but I want to know how can I calculate them
what's on ...
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How to design an electrical system on water?
Is there a way to design an electrical system (wires, resistors, batteries etc.) on the surface of water so that it doesn't sink, receives heat from water and doesn't deteriorate because of water ...
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Torque calculation for a robot [duplicate]
if I have a robot 50kg, 6 wheels and i want to move it inside a sewer pipe what is the torque required?
and there is any DC motor model can satisfy this function?
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How to determine the resistance provided by cement mortar?
I am attaching a steel rail and post guardrail to the coping of an existing parapet. The actions produced by the guardrail on the coping incur at point A as shown below.
However, how do I find out if ...
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How can I make a 48x microscope with combination of lenses?
As part of a project I need to make a device that can give me 48x magnification of nearby objects.
Can someone guide me on how to practically approach this problem, i need to be able to take pictures ...
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Design Help Wanted: place the sensors near the arduino and remotely control the humidifier belt 20 ft away, or vice versa?
{This question first asked on Arduino Stack Exchange. Their complaint was that it didn't specifically pertain to Arduinos. Still needing my questions answered. See what you think. Open to suggestions ...
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Question about feeding a group of cylinders into a tube
I'm currently trying to design a mechanism that can feed a bottle of capsules into a tube. However, I've stumbled across the problem where as the capsule is a cylinder, any tube opening will allow for ...
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Where can I information on the design of trampolines?
I'm looking for design considerations for the gymnastic equipment. NOT the software device.
In my searches, I find lot of high school physics problems, some miniturized setups using marbles teaching ...
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Electromagnetically launching a model glider
As a hobby project, I'm wondering if it would be plausible to build a small, unpowered R/C glider that's launched at high speed (20-60 m/s, or maybe more) from the ground and then manipulated once it'...
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Design? Or something else
When we develop a new technical device (after creating its general concept), we want to implement it. But before we implement it, we must design it. And for this we go through some stages (the list is ...
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How to build a winning Pumpkin Derby racer?
At the large hotel where I work in the engineering department the big Halloween event is the annual Pumpkin Derby...and we've lost every year to the culinary department. It's embarrasing!
This year, ...
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Designing a basic Surveillance system using Johnson Criteria
I would like to design a basic visual spectrum (colour) and IR version for night time that can resolve a target at distance.
I have been given distance (10km) and a target size (2m).
I chose the focal ...
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What are the issues with this ICE design?
Elaborating along this previous question, could you please invalidate this ICE design with solid authoritative arguments explaining all the flaws?
Starting hypothesis:
Whatever the purpose, one single ...
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PVC Stripping issue on steel wire with pulley
I am having some issues with a PVC coated steel cable. The PVC often strips when used with a pulley.
I wanted to know why this may be happening and possible solutions for it.
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How to model flexible plate between two sticks solidworks
I am following a paper on undulatory fin motion and trying to make a model of it in Solidworks.
The problem is stated as having two servo motors with two rays and a flexible rubber membrane between ...
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Best way of SolidWorks rendering for product catalogs
For a catalog of many different parts I want a clear render but not as 'realistic' or detailed as I would get with SW Visualize. Are there any other options or settigns to achieve this?
Some examples:
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What is the standard procedure for designing a machine that translates motion?
I apologize in advance as this question might seem very introductory/simple, or it might even sound a bit vague. I am very new to design in any field other than UI/UX design, so I'm definitely very ...
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How do engineers calculate the dimensions of their design ideas? [closed]
You have a design problem statement, which gives you numerical specifications for performance, spatial constraints etc, and you have finally come up with some mechanism ideas you synthesised into a ...
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Threaded Glass Jar Connection
I'm looking to create a connection similar to the one shown in the picture below going from a stainless steel flange to a threaded glass container. Does anyone know of a commercially available ...
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Does this part exist or do I need to design it?
I would like to start designing a Gimbal platform for drone experimentation, I saw that there is some company that have design this one, the main question is the slip ring exist or do I need to design ...
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How to determine of pumps required on a pipeline
I have a 14km long pipe with total head loss of 113m, transporting water at 40m3/h. How do I decide how many pumps I need? I understand headloss is 113m, but I still don't get how does this tells me ...
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Cam-operated clamps: When are logarithmic cams preferred and when are involute cams preferred?
Logarithmic cams are used in rock climbing, but involute cams are used to clamp work pieces when machining. Why are cams with two different profiles preferred for these two applications, which seem ...
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What are the practical solutions to manufacturing this mechanical piece?
My Custom Piece (Measures are in mm)
I'm designing a custom mechanism that needs this piece to be able to function, but when i started thinking about how to manufacture it, I started getting confused ...
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I am designing a light that is hung from the end of an arm. How do I calculate the amount of force on the fastener where the arm attaches to the wall
I have a light hanging from an arm that is attached to the wall. I need to make sure that the fastener at the wall end is able to hold the weight. How do I calculate this?
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Does the inertia of a beam section include the material density?
Sorry but I'm a little rusty. When solving a beam of any type of section, must the density be included in the moment of inertia of the section?
For example, if I see Navier's formula, I would say ...
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Engineering a pulley system to make an object move when gate is opened
Updated image attached based on @Translators suggestion comment
Hi I am looking to make a movable wood cutout via a pulley system on the back my gate/fence (a monkey that tips a top hat when gate is ...
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