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0 votes
0 answers
41 views

How do I find the pitch for the fly press?

To solve the problem first I need to find the pitch of the screw to find the shearing stress, is the stroke 45 degrees per 5.75mm or 90 degrees per 5.75 mm?
Youssef Mohamed's user avatar
0 votes
0 answers
126 views

Dual Axle Tiny House Trailer Build; Question About Structural Integrity of Trailer Design

I have questions about the fabrication of a tiny house trailer I am building. The questions are focused primarily whether I am adding enough cross supports. My overarching design principle: That of a ...
Gary's user avatar
  • 1
-1 votes
1 answer
56 views

Which design is most resistant to tipping against 90 degree downward force?

Have a question sort of related to question at (What calculation to find how much force before tipping over?) but with slight modifications. Trying to weld some tubing together and onto a heavier base ...
Brian's user avatar
  • 1
1 vote
0 answers
254 views

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-...
Raymond Zheng's user avatar
0 votes
0 answers
16 views

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 ...
Buzz Su's user avatar
1 vote
1 answer
52 views

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 ...
Jake Wrightson's user avatar
0 votes
2 answers
66 views

Can/should you support a sagging ceiling from above?

1) How long of a span is too long for rough cut 2x4 inch (45x100) ceiling joists? Pending what those more knowledgable say, my guess is this room at 5.3m is OK, but not great. It has sagged up to 50mm....
KCD's user avatar
  • 101
0 votes
1 answer
244 views

Is it possible to convert a structure with a .stl file to a solid structure in Abaqus?

I have a .stl file of a structure and I want to use this file to do a simulation in Abaqus. I need my part to be solid but I don't have any .stp or .iges file of the sructure. So, I imported my .stl ...
Goli's user avatar
  • 11
0 votes
1 answer
52 views

derive functions for generating projections for the interpenetration of two cylinders for making fittings

​ I want to make custom fittings for constructing large molecular models using copper tubing. I will need to cut a hole in one piece of tubing that will closely fit around another inserted piece. I ...
Steve Dutky's user avatar
4 votes
1 answer
98 views

What is this strange "French balcony" on a newly built house in California, USA?

While randomly browsing around in Google Street View, amazed by how surprisingly cozy they managed to make this neighborhood, I found something very strange. What looks almost like a "French ...
Stoehr's user avatar
  • 49
3 votes
2 answers
767 views

How to estimate the number of elevators required in a building?

I've been asked to estimate the number of elevators in a mixed use building with 37 floors (4 basement-parking floors), & design their operation. Are their any specifications/guides/manuals that ...
Altair069's user avatar
2 votes
0 answers
62 views

How to estimate effective area of contact between rough surfaces as function of surface roughness

The engineering problem that I am trying to solve is the following: I have two elements of a magnetic circuit that I must keep in contact through threaded fasteners. The primary objective is to ...
B4_'s user avatar
  • 21
1 vote
3 answers
374 views

Mechanical joint that break at specific force

I am designing a joint which I want to break at a specific force. I want to design a 2 parts connected by a joint that breaks when a certain amount of force is applied and thus prevent any damage to ...
Shaurya K. Panwar's user avatar
1 vote
1 answer
45 views

Why isn't there yet such a thing as a "Minimum Life Module" standard and concept deployed? [closed]

Why are large companies not producing, selling and maintaining the concept of "Minimum Life Modules"? What I mean is a standardized "module" hosting exactly one human being, with ...
T L's user avatar
  • 11
1 vote
0 answers
39 views

Frictionless Braking System for 2 wheeler using electromagnet [closed]

I'm developing a Frictionless Braking System for 2 wheeler using electromagnet. My questions were How can we overcome the problem of braking at Low speeds. This type of braking tends to fail. How can ...
BloodHoundWolfxx's user avatar

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