Subnostr

Jeremiah Baker 2y ago

Blueprints simplified!

Misinterpreting technical drawings can cause confusion and errors.

Learn Geometric Dimensioning and Tolerancing (GD&T) for precise fabrication.

GD&T is superior to the traditional "plus-minus" dimensioning system because it:

1. Offers comprehensive communication through symbols, modifiers, and datums, reducing misinterpretation.

2. Provides enhanced precision by specifying form, orientation, and location accurately.

3. Optimizes tolerances based on functional requirements, saving costs and improving quality.

4. Ensures interchangeability of parts for smoother assembly.

5. Simplifies inspection processes, reducing errors.

6. Encourages Design for Manufacturing (DFM) by considering manufacturing constraints early in the design process.

In essence, GD&T is a more accurate and efficient way to convey design requirements in technical drawings.

#grownostr #engineering #manufacturing #engineernostr

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Discussion

pam 2y ago

what are the other options tolerance and how much of it is based on materials and types of fabrication? and whats your go to design sw? i'm only familiar with solidworks - gives as much headache as photoshop lol. what's the easiest one ? and a free one ? whats the typical tolerance adjustments you see between 3D and injection moulds? mechanical engineering is interesting but tough.

Jeremiah Baker 2y ago

GD&T works with most types of fabrication from machining to sheet metal. It gives tolerancing that is better able to produce a good part.

Your tolerancing should be done to the widest tolerances possible. It helps with fabrication and cost. So you determine your critical geometry and that should be your tighter tolerance.

Nowadays, I don’t really have a favorite design software. I have used solidworks, creo, fusion 360, and onshape. Onshape was inexpensive and probably the easiest. Fusion I believe is still free for “enthusiasts”.

I’m not sure what you mean by tolerance adjustments on the moulds? Not sure if you mean material expansion or part tolerancing?

Mechanical engineering requires quite a bit of practice and continuous learning. Just takes time. You have to gain a sense for it.

Thank you for the questions! I am here to help!

pam 2y ago

Thanks! i work with product designers mostly but its a struggle replicating between 3D precision and injection mould's high tolerance.

Jeremiah Baker 2y ago

I haven’t had the opportunity to work with injection moulds. What kind of precision range are you working with?

il_lost_ 2y ago

There Is no need to check the LMC and MMC, different to ISO 8015