Re: Making adjustments to an STL in OpenSCAD?
On Tue, 18 Jul 2023 00:18:17 +0200, you wrote:
On Mon, Jul 17, 2023 at 10:04:54PM +0100, terrypingm@gmail.com wrote:
Sorted. Main mistake was that I had got the subtraction reversed. >
Printed correctly. But Id been too brave in reducing the size of
the rim to a mere 1.5 mm, as the Dremel hole cutting wasnt quite
accurate enough. Still looking for a really reliable way to cut
rectangles in plastic cases. >
A good learning exercise though. Turns out quite a lot of changes
can be made even without access to the original OpenSCAD CODE.
Not 100% sure what you're printing but the idea of a bevel is to allow
a margin in the hole-cutting in the case you're using....
My printer is busy the coming 48 hours... Big print job....
Roger.
====================
For reasons I've never fully understood I don't consistently see the
(rare) posts I make to it. I have to check the Empathy web site,
https://lists.openscad.org/empathy/thread/DQE5HSEVA2OYR5CCGJE5G3SZSV3DWS6G
where they do appear (although often in more than one thread, plus other
flaws). I've always assumed they DO appear in other members' in boxes,
and get replies as evidence.
But it sounds like you didn't see my screenshot, minutes after my 11:07
post?
Mon, Jul 17, 2023 11:07 AM
Sorry forgot the screenshot, now attached or here:
https://www.dropbox.com/scl/fi/4nosz3eh4nq1hfwywf0op/ImportedSTL-1.jpg?rlkey=0gs7678r5rs5xvfbjkoiqf6wb&raw=1
Re the bevel, as you see from my commented latest code below, I was a
tad too ambitious!
// Probably reduced width of bevel too much. This printed about 1.5 mm
compared with original 4.5. Next time try 2.5 unless discover more
accurate way to cut the hole.
difference()
{
// Centred the original STL
translate([-24.25, 2.75, 0])
import("C:/Users/terry/Dropbox/3D
Printer/PROJECTS/1602_LCD_Bezel_3459425/files/1602_LCD_Bezel.stl" );
translate([0,52,0])
cube ([100,60,50],center = true);
translate([0,-52,0])
cube ([100,60,50],center = true);
translate([94,0,0])
cube ([100,60,50],center = true);
translate([-94,0,0])
cube ([100,60,50],center = true);
}
P.S. I sent an email for this thread earlier, replying to David, Tue,
Jul 18, 2023 6:52 AM, which still doesn't appear in my inbox a few hours
later. It does appear in Empathy. Could someone kindly let me know if it
has arrived in their lists please?
Terry