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Creating a linear hole pattern drawing

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windell

Mechanical
Jun 16, 2005
26
Hi, I'm in the process of turning my model into a drawing and I realize that my part is so large, that even if I fit the scale to my paper, that the details are hard to see. I understand that I could use detail, but I also realize that my piece is just a repeat of a hole pattern.

I'm fairly new to producing drawings for patterns, and I would like to new the proper way in which could be the simplest and easiest to be interpreted for a machinist. Do any of you know of good reference that have credibility in creating proper machine shop drawings?

Thanks for your time!
windell
 
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If by "large", you mean "long", then I'd recommend you use the break function to create a broken view. Since you stated that your part is just a repeat of a hole pattern, I picture this being handy for you.

As far as references for credibility, If you are in the US, I'd recommend conforming your drawings to the ASME Y14 standards.

I've picked up a couple of different textbooks(I'm looking at "Technical Drawing", "Mechanical Drawing", and "Engineering Drawing and Design" on my shelf right now), all for around 15$ a piece at the local used bookstore. Most everything in these books matches what is required by ASME Y14.
 
what 4z said. The "break" view would work for a repeat pattern.

As with any drawing, make sure there is no ambiguity or omissions.

Here's a sample drawing that should be suitable for shop use and that a machinist would understand.
You can add in whatever GT symbols and relationships deemed necessary.

 
 http://files.engineering.com/getfile.aspx?folder=eb3ded24-b46a-4146-91b5-71911cb05ef9&file=Linear_Hole_Pattern_sample.JPG
...meant to add,
the first instance of the pattern distance should be given conventionally (the ambiguity thing), the repeat information is in the hole callout.
 
Thank you both for your valuable replies! Would purchasing the Y14 standard be a worthy investment or would buying an instore text be suitible? I'm not working for a company, I'm a mechanical engineering senior who occasionally has to make drawings. I really would like to know what the proper way is instead of learning/reinforcing bad habits. My college doesnt really teach us the proper way to make drawings. They kind of just say to just do it.

Thanks!
 
I know that buying the standards themselves can get expensive real quick.

The first thing I'd recommend is checking the library at your college to see if you have access to them (the major university most near me has a library of standards available to students). That way you can get an idea of what they contain and then find a text that you feel addresses the requirements.

You could probably get away with picking up a textbook for now. Draftingzone is also an option that you could look into.
 
The purpose of a drawing is to communicate. Do what you must in order to convey the design.

You're not paying by the inch of pencil lead. Put in the detail view already. It's not a contest to see how little inky you can put on a drawing.
 
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