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Whosa whatsis
2,691 followers -
Polymathic autodidact
Polymathic autodidact

2,691 followers
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Which slicer do you use on a daily basis, and why do you choose it over the other options? If you use more than one regularly, what makes you decide to use one or the other? There have been polls on the popularity of various slicers, but polls fail to cover the "why" part. I'm looking for reasons to recommend one slicer over another for certain types of jobs, or to certain types of users.

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Put together a little article with +Whosa whatsis about one of our pet peeves: how to define 3d printing "resolution." Check it out at the link:

https://www.linkedin.com/pulse/3d-printer-resolution-myth-reality-joan-horvath

#3dprinting
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My first class with +Whosa whatsis on Lynda.com has just been released, "Additive Manufacturing: Optimizing 3D Prints."

Lynda.com classes are behind a paywall, but they have free trials! Many schools also have subscriptions.

The class on Lynda.com: https://www.lynda.com/CAD-tutorials/Additive-Manufacturing-Optimizing-3D-Prints/618717-2.html

Some of it is also available via LinkedInLearning:
https://www.linkedin.com/learning/additive-manufacturing-optimizing-3d-prints

Check it out!
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Just adding the finishing touches to Hackaday Prize 2017 project with +Whosa whatsis, "Hacker Calculus" - teaching calculus intuition hands-on, with little or no algebra. Project video is up: https://youtu.be/Xa6efgkgA54
The overall project is at https://hackaday.io/project/20621-hacker-calculus - please check it out.
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Anyone at SIGGRAPH? Organizing a Birds of a Feather session with +Whosa whatsis about best practices for making 3D printed math and science models. Tuesday 8/1 10-11:30 AM, room 506 in the Convention Center. Bring a cool print! http://s2017.siggraph.org/birds-feather
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We have a 3D printing meetup at the Supplyframe Design Lab at 6PM. If you're in the Pasadena area, come check it out!
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Citing precedent going back to the 1600s, the justices agreed with Impression Products that as soon as a product was in the hands of consumers, patent protection was finished. “Once sold, the Return Program cartridges passed outside of the patent monopoly,” the unanimous court decision, “and whatever rights Lexmark retained are a matter of the contracts with its purchasers, not the patent law.” Lexmark can still try to enforce its agreements with individual customers who don’t return the empties as promised, but the agreements don’t apply to third parties.

IANAL, but this sounds to me like this opens the door to, for example, third-party aftermarket upgrades to add a heated build chamber (deformable insulators and all) as long as the customer installs the upgrade rather than either company.

Has anyone done any experiments with using a remote air pump instead of a downward cooling fan mounted to the toolhead yet? I'm thinking something like an aquarium air pump or a small vacuum pump with tubes going to the toolhead.

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Excited that our new book (#6 in collaboration with +Whosa whatsis) is now out. If you want some fun stuff to do this summer with your 3D printer, how about a few gravity wave models? Publisher's link below, but also available on Amazon and other big booksellers.

http://www.apress.com/us/book/9781484226940
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Anyone actually use toothed idler pulleys like these? They seem to have a huge design flaw: the OD of the bearings is the same size as an m3 washer and will rub against it. Do you need special conical washers for these?
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