Susan Straley
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Rentapen Inc.
Job Title
Queen of Lean Machine Design and President
Manufacturing, Machine Design
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Your Engineering Focus
Weld Fixtures, Machine Design
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Networking, Inspiration, Peer Feedback
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Riding Bike, Rail Trails, Business
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Susan Straley's Blog

Tours of Two Simple Weld Fixtures

Posted on April 10, 2014 at 3:00pm 0 Comments

Besides actually doing the design work and seeing how it functions in reality,  another great way to learn is to take a close look at what other designers have done,  to listen to their horror stories,  to hear why they do things a certain way.

So, it is my hope that you will learn a bit from watching the video and the slide show.  And if it spurs a memory or an idea, feel free to share it so that we can all learn together.…


11 Ideas for Clamping in Weld Fixture Design

Posted on July 26, 2012 at 12:59pm 3 Comments

In Weld Fixture Design you need to think how to best hold your product parts in place and keep them there while they are being welded.

Check out some images and ideas for clamping in this post from Rentapen's Weld Fixture Design 101.

3 Tips for Reducing Errors in Machine Design Revisions

Posted on July 10, 2012 at 9:18am 2 Comments


1) Save a Copy of the Original

2) Print the BOM and areas that are changing on complex projects

3) Think and Prepare!!!  In CAD you can do anything.  Not so with a metal part!  A revision means that some or all of the machine exists.  So THINK! 

Hard code holes because they already exist in that spot in the metal part.  You now have to work around existing holes. 

Make sure dependent parts are redefined in your CAD assembly so…


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At 7:27am on July 27, 2012, G S Jha said…

Revision of M/c design is a very sensitive issue.The three Tips is very useful and practical.During initial design of the machine designer should must have taken care of the products and their operation processes.

During revision of the same,one point also to be taken care of ie collection of DATA of the m/c. operation which will decide what revision is needed.

A very vital point is to save/keep the original design.



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