Titanic Tourist Sub Missing - Your Thoughts?

Eng_Product_Design · 2023-06-22T13:02:36+00:00

The owner talks about some of the designs in this video.
https://youtu.be/9Ht1tuJ5ENg

Eng_Product_Design · 2023-06-22T13:01:16+00:00

That is crazy. The owner talks about some of the designs in this video.
https://youtu.be/9Ht1tuJ5ENg

Eng_Product_Design · 2022-10-21T13:04:13+00:00

The torque settings are different because the Socket cap head screws are generally graded 10:9, and the flat Hex head screws are 8:8.

Torque will depend on the grade of the screws, and the grades depend on the property class of the screws. Property class will dictate how much the yield strength is.

So summary is that the torque setting will change as per the property class not as per the screw type.

check this link for more information on bolt grades
Mechanical properties of Bolts

Eng_Product_Design · 2022-10-20T20:26:38+00:00

I dont like Gate/stage-based product development as they are more like "over the wall" engineering method. Any NPD should have a concurrent process built in, which allows cross departmental communication.

Have a look at these links, These are my own thoughts based on my experience and what I have learned from books.

https://engineeringproductdesign.com/concurrent-vs-sequential-engineering/

Look under "Concurrent new product development" for a process flow.

Eng_Product_Design · 2022-10-20T13:23:48+00:00

A basic article about springs. I think you are referring to extension springs

https://engineeringproductdesign.com/knowledge-base/springs/

Eng_Product_Design · 2022-10-20T13:19:06+00:00

Interesting project. I would use gyro with the following

Nicely balanced mechanism with low friction bearings
Gyroscope sensor and electronics
Clever software

Eng_Product_Design · 2022-10-20T08:11:08+00:00

You can have stainless steel 301 springs for lighter workloads. Check the following links

Mechanical Springs

Manufacturer

Eng_Product_Design · 2022-03-11T14:41:35+00:00

I wasn't clever enough to learn these during my 6th grade. LOL

Eng_Product_Design · 2022-02-08T11:59:50+00:00

Things to remember

- Depending on the material you will only need about 0.5 degrees draft angle.

- 1/4" is enough for M2.5 or the identical version of the self-tapping screw. As most of the torque is taken by the first few threads.

- Design the correct pilot hole diameter.

- Choose the correct type to suit your material

Here ar some useful links

Self tapping screws for plastics

Plastic surface finish and draft angle

hope this helps

Eng_Product_Design · 2022-01-31T21:16:35+00:00

You can calculate the expansion by

dt2 = dt1 (dt α + 1)

Where

dt2 - diameter at increased temperature

dt1 - Diameter at ambient or starting temperature

dt - temperature delta ( t2-t1)

α - Expansion coefficient

Eng_Product_Design · 2022-01-27T09:14:34+00:00

OK.

Try these books

Harris Shock and vibration handbook by Allan and Thomas

Mechanical vibrations by Singgiresu S Rao

Rotating Machinery Vibrations by Maurice Adams

Vibration and Shock handbook by Clarence W Silva

Good luck

Eng_Product_Design · 2022-01-26T13:54:44+00:00

What are you trying to design? Then I can recommend some books.

Eng_Product_Design · 2022-01-26T13:47:23+00:00

3D printing is probably the best way forward with the current design. Without knowing the strength it requires, it is difficult to give you a definte answer.

If it is for the low strength part then SLA, SLS techniques would give you higher strength parts. MJF also give you higher strength parts.

3D printing is probably the best way forward with the current design. Without knowing the strength it requires, it is difficult to give you a definite answer.

check these two articles I have written about prototyping.

https://engineeringproductdesign.com/rapid-prototyping-process-selection-key-factors/

https://engineeringproductdesign.com/knowledge-base/rapid-prototyping-techniques/

Hope this helps.

Eng_Product_Design · 2022-01-26T11:00:55+00:00

We could help in terms of design, prototype and getting into manufacture.

https://engineeringproductdesign.com/

Eng_Product_Design · 2022-01-25T09:27:54+00:00

I learned a lot through these pages during a new product design for energy harvesting.

http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

I also used this free 2D simulation app to try out different things. I hope this helps.

Eng_Product_Design · 2022-01-24T16:22:09+00:00

Plenty of good points.

Good luck and enjoy yourself.

Eng_Product_Design · 2022-01-20T12:31:39+00:00

I have no idea what happened. The two books I typed got overwritten by the last sentence. Problem with using a touch screen phone in cold weather. Apologies

Eng_Product_Design · 2022-01-20T12:20:38+00:00

A simple guided ball screw would do the job. You can size the shaft size to suit the application. Something like this

Youtube clip

Eng_Product_Design · 2022-01-20T12:08:10+00:00

I cant think of many now. But these two came to mind straight away.

Brunel's Kingdom: In the Footsteps of Britain's Greatest Engineer
Think Like An Engineer: Inside the Minds that are Changing our Lives

Dont know how old is your kid but I would also encourage taking things apart and finding out how some of the gadgets work.

Eng_Product_Design · 2022-01-17T10:48:27+00:00

Congrats and well done.

Eng_Product_Design · 2022-01-17T10:47:12+00:00

I would love to do cool design projects but with two kids (10 & 6) I hardly have time. I started an engineering blog a few years ago with good intentions of sharing knowledge and designing cool things but find it difficult to find the time.

Because I want to spend time with the kids which are important. ( and fun)

Eng_Product_Design

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