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Swenson Seven

My Locost build using a Miata donor, including the power plant frame (PPF).

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Updates

Shortening the PPF (Power Plant Frame)

October 27, 2026October 27, 2026

OK, I had the engine on the table in approximately its final location and the differential in the frame. This shows the PPF before shortening.

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Rotisserie 1
Updates

Update – October 26, 2026

October 27, 2026October 27, 2026

It has been a long time, but that does not mean nothing has been happening. In fact, I have been working steadily on the car.

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I added a vertical support.
Frame

Building the Frame #3 – The Differential Support

February 23, 2024October 27, 2026

The differential support took some time and needed to be accurately located. Here are the related drawings. Here are the location coordinates for the support.

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Contact

Contact Me

January 19, 2024January 19, 2024

You can contact me at the following email. swenson.locost@swenson-home

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Mounting upper A-arm main shaft with Heim joints.
Suspension

Suspension #2 – Front Suspension Design

January 5, 2024January 23, 2024

My intent for the upper A-arm joints is to follow the idea of Jim McSorley at Sevenesque. He shows how he built his front suspension

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Upper front A-arm measurements.
Suspension

Suspension #1 – Miata Suspension

January 5, 2024February 23, 2024

Here is a description of the Miata front suspension and my measurements of key locations. First some pictures I took. Now my measurements. Done with

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The base dimensions.
Frame

Building the Frame #2 – The Frame

December 21, 2023October 27, 2026

Building the frame is the most straight-forward part of the build. You measure, cut, and weld. My guess is that when the frame is finished,

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It is flat and strong (2023-07-21). Notice support for engine if I try to position on the table.
Frame

Building the Frame #1 – The Table

December 1, 2023December 25, 2023

The first thing is to build the table. It needs to be flat and strong. I used a jointer to make sure my wood was

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The base dimensions.
Drawings

CAD Drawings #2 – Dimensioned Drawings

December 1, 2023January 9, 2024

Now we will display the dimensioned drawings. Here is a file with the drawings. You will notice I did not make part drawings of individual

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A sketch is made using points and lines
Drawings

CAD Drawings #1 – SolidWorks 3DEXPERIENCE

December 1, 2023December 5, 2023

I decided to draw my design using CAD after seeing Tools-n-Track struggle with unexpected interference problems using the Vodou drawings. Also, I wanted to change

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