We’ve Annexed The Independent Nation of Needhamia

It’s expensive and confusing to maintain two web sites (hobby and work), now that any of my hobbies could develop into a small business.

As of April 8, 2023 I’ve finished moving all of the Needhamia.com posts to this site. Going forward, I will post both work and hobby notes here.

Welcome, to followers of The Independent Nation of Needhamia!

Featured Image: Cuneiform tablet: commercial note concerning caravan expenses, Middle Bronze Age–Old Assyrian Trading Colony. Public Domain, courtesy of the New York Metropolitan Museum of Art.

Choosing the List Price of My IngramSpark Paperback

UPDATE September 9, 2023: I’ve changed all our books on IngramSpark from “Returns=Yes-Destroy” to “Returns=No”, after reading Lisa Chavari’s April 2023 post, “Why my books are no longer returnable through Ingram“.

Once you’ve written your self-published paperback book, how do you choose a list price for it? How much will you make per book? How will book returns affect how much you make? And what about the list price in different countries, with different currencies?

This post covers my attempt to answer those questions for myself, printing and distributing a paperback book through IngramSpark. Please come along for the ride!

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Putting Your eBook on Kindle Unlimited

We recently moved Linda’s eBook The Maiden Bride to Amazon’s Kindle Unlimited. This post covers what we learned.

Disclaimers: I’m not a lawyer; You should seek legal advice before pursuing the publication process I describe below. This post covers my personal experience at the time of posting; the process and Amazon’s Terms of Use will likely change over time.

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Printing an ABS Dishwasher Detergent Door

I recently needed to print a replacement door for the Whirlpool dishwasher’s detergent dispenser. This post details my adventure, which took three prints to get it right.

For the short version of the story, see All3DP’s brief page on how to stop ABS print warping. For the whole story, read on.

LATE UPDATE: Prusa’s excellent post on food safe printing basically says ABS = bad and that it’s really hard to make a safe 3D print regardless of the type of filament. In my opinion, you’re probably better off buying the Whirlpool replacement part rather than printing something that will harbor bacteria and fungi.

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Adding an Air Filter to a Box Fan

During the wildfires of 2020 I saw many instructions for how to quickly duct-tape air filters to a box fan, to remove smoke from household air. Years before that I was interested in buying a woodworking shop air filter that would remove fine sawdust that otherwise floats in the air for days or weeks.

This post describes my experience making a air-filter-box-fan design, using 3D printed clips instead of duct tape to hold the filter to the fan.

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Product Concept Technology and Invention Consulting