Marvelous Magnetic Machines: Building Model Electric Motors from Scrap

$22.70
1 in stock

Pickup available at Bookstore (Hours: Open Everyday, 8 am to 4 pm)

Usually ready in 24 hours


About this item

You’re standing in front of an old card table in a driveway at a garage sale. On that table is a one-quart aluminum saucepan, a votive candle holder, pieces of some office machinery, and a wooden awards plaque. What do you see there? If you did not answer “a six-cylinder radial electromagnetic attraction motor,” then you need this book!H.P. Friedrichs (author of The Voice of the Crystal and Instruments of Amplification) returns this time to explore the principles behind the operation and construction of five simple, yet impressive, model electric motors.Aspiring mechanical model makers are often discouraged by their lack of access to machine tools, like mills, lathes, or drill presses. Friedrichs demonstrates that with some basic knowledge, an open eye, and a sharp mind, one can use commonly available (and often discarded) parts and materials to engineer one’s way around any lack of expensive machine tooling. In fact, every motor in this book was built from scrap, and can be assembled with hand tools.You’ll learn where to hunt for and find materials, and where to salvage suitable bearings. You’ll know where useful solenoids can be extracted from scrap, and how to fabricate bobbins to wind your own. You’ll learn how to time your motors, fashion a connecting rod, make a commutator from scratch, use a hall effect sensor to detect magnet position, use a transistor as a switch, and much more.
ASIN: B0C6R4SPQF
VSKU: DBV.B0C6R4SPQF.G
Condition: Good
Author/Artist:Friedrichs,H.P.
Binding: Hardcover
Note: Any images shown are stock photographs and product may differ from what is shown.
Condition Notes: Gently used with minimal wear on the corners and cover. A few pages may contain light highlighting or writing, but the text remains fully legible. Dust jacket may be missing, and supplemental materials like CDs or codes may not be included. May be ex-library with library markings. Ships promptly!
Note on Condition

Most of the items in our store are used. The item's condition grade is indicated near the bottom of the product description. If you have any questions regarding specific details of an item, please contact us. We use the following rating scale:

Books:

  • Used - Very Good: Item may have minor cosmetic defects (marks, wears, cuts, bends, crushes) on the cover, spine, pages or dust cover. Shrink wrap, dust covers, or boxed set case may be missing. Item may contain remainder marks on outside edges, which should be noted in listing comments. Item may be missing bundled media. 
  • Used - Good: All pages and cover are intact (including the dust cover, if applicable). Spine may show signs of wear. Pages may include limited notes and highlighting. Gently used ex-library books with library stickers and markings may be classified as good. Shrink wrap, dust covers, or boxed set case may be missing. Item may be missing bundled media. 
  • Used - Acceptable: All pages and the cover are intact, but shrink wrap, dust covers, or boxed set case may be missing. Pages may include limited notes, highlighting, or minor water damage but the text is readable. Item may but the dust cover may be missing. Pages may include limited notes and highlighting, but the text cannot be obscured or unreadable.

CDs/DVDs/Discs:

  • Used - Good: Case may be damaged or come repackaged. Disc may have up to 1.5cm marking but is in great working condition. 
  • Used - Acceptable: A product with extensive external signs of wear, but is in great working condition. The case may be damaged. The cover art, liner, notes, or other inclusion may be marked, or one or all of these items may be missing.
Shipping & Returns

Shipping: Most orders are shipped within 2 business days.

Returns: We want you to be completely satisfied with your purchase. If you're not, you can return your order within 30 days of purchase for a refund.

Fast Shipping

Orders are typically processed and shipped within 2 days

Competitive Pricing

We've streamlined our processes to provide competitive prices on all our titles

Exceptional Customer Service

Our dedicated team is committed to providing outstanding customer support