On Thursday 04 June 2020 17:11:49 Chris Albertson wrote:

> If you have not enabled supports and are printing an object like a
> pulley you WILL have a total mess.    3D printer need a surface and an
> part of the part that overhangs with just air onder it will not print
> well as the hot plastic will just fall out the nozzle.
>
> But that cross hatch pattern looks like support base so it must be
> enabled. You can enable support either "from the baseplate up" or
> "everywhere" and you need "everywhere" as at to support the top
> flange.
>
> Yes, removing support is a PIA because on a pulley the teeth will be
> completely 100% inside a ring of support material.
>
> For a beginner you picked a hard project.   Most people would start by
> printing a one-inch cube or a 1/2 inch flat washer.   Pulleys have
> need of support and have printed threads for the set screw.  Both as
> "intermediate level" skills.    Horizontal threads always have
> support inside that needs pin punch (hex key) to remove
>
> I had to modify the pulley design so it could print with minimal
> support. Take all the ridges off the outside, make the flange thicker
> and radius the inside of the flange
>
> It is also possible to control the support density and pattern.
>
> Getting all this right nly tak seconds if you know to do it.  I start
> in Fusion and vew thepart from al sides to see if it can be better
> designed to reduce the need for support.   Then in Cura I try a few
> suport techniques and use preview to see where it is going to go.   If
> it looks bad, then back to Fusion to change an angle or whatever.    
> This is why engineers like really fast workstatins as design is
> iterative.
>
> I'll look at a file if you can e-mail it.
>
Which file, the gcode that was copied to the printer? or ??


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>


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