Re: Discuss Digest, Vol 92, Issue 4
Model it as a solid. When you slice it for 3D printing, set the infill
to 15 or 20%. The printer will then produce a smooth shell with enough
internal structure to make the entire object fairly stiff and rigid, and
yet quite lightweight.
On 7/4/2022 7:50 AM, discuss-request@lists.openscad.org wrote:
Subject:
[OpenSCAD] Difference - two surfaces - artifacts - better way?
From:
kenclark@ameritech.net
Date:
7/4/2022, 7:50 AM
To:
discuss@lists.openscad.org
I’m trying to make an insert for a planter, to reduce the size of a
fill bin and make it easier to plant smaller quantities of seed. The
problem is that the bin is too big, and doesn’t allow seed small
amounts of smaller seed to ever be picked up by the pickup wheel. In
the distant past, seeders often had a small insert that fit into the
bin to reduce the space and push smaller seed better up against the
pickup wheel. I’m trying to make that kind of space filling, removable
insert for this seeder.
First attachment is the bin I’m trying to partially fill. Second
attachment is the surface I started with to fill that, third
attachment is a difference between the first surface and a second four
units below it (I used two surface calls on two files, but probably
could have done a difference on a translate of the original.) It makes
artifacts all over the place below the bottom surface.
I’m completely new to 3D printing and OpenSCAD. I figured it would be
a total pain to come up with some kind of formula that produced the
shape I wanted, but surface sounded great. But then I thought I’d be
wasting a whole lot of resin making it a solid cup, so what I really
want is a thick-enough-to-print-but-thinner piece, and came up with
the top and bottom surface, and a difference between them. Very close
to what I’d want, but I’m concerned the artifacts mean I’m headed the
wrong way. Suggestions?
Wow. Does that work? I'll have to try that. This is just the first version of this thing, but I really think I need like three, taking up more and less extra space. That would be a terrific way to make the bigger/less space versions. Does it do a honeycomb then? Is it OpenSCAD or the printer that has the brains to do the fill that way?
Thanks!Ken
On Monday, July 4, 2022 at 12:02:56 PM EDT, Douglas Miller <doug@milmac.com> wrote:
Model it as a solid. When you slice it for 3D printing, set the infill to 15 or 20%. The printer will then produce a smooth shell with enough internal structure to make the entire object fairly stiff and rigid, and yet quite lightweight.
On 7/4/2022 7:50 AM, discuss-request@lists.openscad.org wrote:
| Subject: [OpenSCAD] Difference - two surfaces - artifacts - better way? |
| From: kenclark@ameritech.net |
| Date: 7/4/2022, 7:50 AM |
| To: discuss@lists.openscad.org |
I’m trying to make an insert for a planter, to reduce the size of a fill bin and make it easier to plant smaller quantities of seed. The problem is that the bin is too big, and doesn’t allow seed small amounts of smaller seed to ever be picked up by the pickup wheel. In the distant past, seeders often had a small insert that fit into the bin to reduce the space and push smaller seed better up against the pickup wheel. I’m trying to make that kind of space filling, removable insert for this seeder.
First attachment is the bin I’m trying to partially fill. Second attachment is the surface I started with to fill that, third attachment is a difference between the first surface and a second four units below it (I used two surface calls on two files, but probably could have done a difference on a translate of the original.) It makes artifacts all over the place below the bottom surface.
I’m completely new to 3D printing and OpenSCAD. I figured it would be a total pain to come up with some kind of formula that produced the shape I wanted, but surface sounded great. But then I thought I’d be wasting a whole lot of resin making it a solid cup, so what I really want is a thick-enough-to-print-but-thinner piece, and came up with the top and bottom surface, and a difference between them. Very close to what I’d want, but I’m concerned the artifacts mean I’m headed the wrong way. Suggestions?
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Neither. It's the slicer (Cura, probably).
On Tue, Jul 5, 2022 at 11:45 AM Ken Clark kenclark@ameritech.net wrote:
Wow. Does that work? I'll have to try that. This is just the first
version of this thing, but I really think I need like three, taking up more
and less extra space. That would be a terrific way to make the bigger/less
space versions. Does it do a honeycomb then? Is it OpenSCAD or the
printer that has the brains to do the fill that way?
Thanks!
Ken
On Monday, July 4, 2022 at 12:02:56 PM EDT, Douglas Miller <
doug@milmac.com> wrote:
Model it as a solid. When you slice it for 3D printing, set the infill to
15 or 20%. The printer will then produce a smooth shell with enough
internal structure to make the entire object fairly stiff and rigid, and
yet quite lightweight.
On 7/4/2022 7:50 AM, discuss-request@lists.openscad.org wrote:
Subject:
[OpenSCAD] Difference - two surfaces - artifacts - better way?
From:
kenclark@ameritech.net
Date:
7/4/2022, 7:50 AM
To:
discuss@lists.openscad.org
I’m trying to make an insert for a planter, to reduce the size of a fill
bin and make it easier to plant smaller quantities of seed. The problem is
that the bin is too big, and doesn’t allow seed small amounts of smaller
seed to ever be picked up by the pickup wheel. In the distant past, seeders
often had a small insert that fit into the bin to reduce the space and push
smaller seed better up against the pickup wheel. I’m trying to make that
kind of space filling, removable insert for this seeder.
First attachment is the bin I’m trying to partially fill. Second
attachment is the surface I started with to fill that, third attachment is
a difference between the first surface and a second four units below it (I
used two surface calls on two files, but probably could have done a
difference on a translate of the original.) It makes artifacts all over the
place below the bottom surface.
I’m completely new to 3D printing and OpenSCAD. I figured it would be a
total pain to come up with some kind of formula that produced the shape I
wanted, but surface sounded great. But then I thought I’d be wasting a
whole lot of resin making it a solid cup, so what I really want is a
thick-enough-to-print-but-thinner piece, and came up with the top and
bottom surface, and a difference between them. Very close to what I’d want,
but I’m concerned the artifacts mean I’m headed the wrong way. Suggestions?
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
On 7/5/22 12:48, Ken Clark wrote:
Wow. Does that work? I'll have to try that. This is just the first version of this thing, but I really think I need like three, taking up more and less extra space. That would be a terrific way to make the bigger/less space versions. Does it do a honeycomb then? Is it OpenSCAD or the printer that has the brains to do the fill that way?
Thanks!Ken
The infill is in the slicer you use. I'm a 100% linux site and there's
st least half a
dozen choices of slicers, most of which have winderz and mac versions too
I use cura which has at least 15 choices of infill patterns, all of
which seem
to be modifiable according to a % of infill requested. Strength of the
part seems
to hit a more isn't any stronger once the infill is 25% so most use
something in
that range. Makes lighter weight parts and saves plastic.
You have nearly total control over the printer from the slicer's menu's.
On Monday, July 4, 2022 at 12:02:56 PM EDT, Douglas Miller <doug@milmac.com> wrote:
Model it as a solid. When you slice it for 3D printing, set the infill to 15 or 20%. The printer will then produce a smooth shell with enough internal structure to make the entire object fairly stiff and rigid, and yet quite lightweight.
On 7/4/2022 7:50 AM, discuss-request@lists.openscad.org wrote:
| Subject: [OpenSCAD] Difference - two surfaces - artifacts - better way? |
| From: kenclark@ameritech.net |
| Date: 7/4/2022, 7:50 AM |
| To: discuss@lists.openscad.org |
I’m trying to make an insert for a planter, to reduce the size of a fill bin and make it easier to plant smaller quantities of seed. The problem is that the bin is too big, and doesn’t allow seed small amounts of smaller seed to ever be picked up by the pickup wheel. In the distant past, seeders often had a small insert that fit into the bin to reduce the space and push smaller seed better up against the pickup wheel. I’m trying to make that kind of space filling, removable insert for this seeder.
First attachment is the bin I’m trying to partially fill. Second attachment is the surface I started with to fill that, third attachment is a difference between the first surface and a second four units below it (I used two surface calls on two files, but probably could have done a difference on a translate of the original.) It makes artifacts all over the place below the bottom surface.
I’m completely new to 3D printing and OpenSCAD. I figured it would be a total pain to come up with some kind of formula that produced the shape I wanted, but surface sounded great. But then I thought I’d be wasting a whole lot of resin making it a solid cup, so what I really want is a thick-enough-to-print-but-thinner piece, and came up with the top and bottom surface, and a difference between them. Very close to what I’d want, but I’m concerned the artifacts mean I’m headed the wrong way. Suggestions?
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
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To unsubscribe send an email to discuss-leave@lists.openscad.org
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, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page http://geneslinuxbox.net:6309/
The poster mentioned RESIN, so it's a Resin printer.
Cura is NOT very well suited for handling resin printers...
The Alternatives are generallly ChituBox, Lychee or FormWare(commercial product. This is what I use.)
Some printers come with their own built-in slicer or a bundled version of the first 3.
The alternative to 'thick walls and %infill there is 'hollow print', with holes to dump out trapped resin and 'internal support structures'(which can be hit or miss, really).
And you never seem to be able to get all the uncured resin out of the part...
Also, when you reply to a digest, it has always been considered polite to CHANGE THE EFFING TOPIC LINE TO SOMETHING DESCRIPTIVE!
It allows those of us who aren't Digest readers to delete the emails of topics we aren't 'following' without first having to read them.
:-|
Trygve
Den 5. juli 2022 kl. 18.45.59 +02.00 skrev Father Horton fatherhorton@gmail.com:
Neither. It's the slicer (Cura, probably).
On Tue, Jul 5, 2022 at 11:45 AM Ken Clark <kenclark@ameritech.net> wrote:
Wow. Does that work? I'll have to try that. This is just the first version of this thing, but I really think I need like three, taking up more and less extra space. That would be a terrific way to make the bigger/less space versions. Does it do a honeycomb then? Is it OpenSCAD or the printer that has the brains to do the fill that way?
Thanks!
Ken
On Monday, July 4, 2022 at 12:02:56 PM EDT, Douglas Miller <doug@milmac.com> wrote:
Model it as a solid. When you slice it for 3D printing, set the infill to 15 or 20%. The printer will then produce a smooth shell with enough internal structure to make the entire object fairly stiff and rigid, and yet quite lightweight.
On 7/4/2022 7:50 AM, discuss-request@lists.openscad.org wrote:
Subject:
[OpenSCAD] Difference - two surfaces - artifacts - better way?From:
kenclark@ameritech.netDate:
7/4/2022, 7:50 AM
To:
discuss@lists.openscad.org
I’m trying to make an insert for a planter, to reduce the size of a fill bin and make it easier to plant smaller quantities of seed. The problem is that the bin is too big, and doesn’t allow seed small amounts of smaller seed to ever be picked up by the pickup wheel. In the distant past, seeders often had a small insert that fit into the bin to reduce the space and push smaller seed better up against the pickup wheel. I’m trying to make that kind of space filling, removable insert for this seeder.
First attachment is the bin I’m trying to partially fill. Second attachment is the surface I started with to fill that, third attachment is a difference between the first surface and a second four units below it (I used two surface calls on two files, but probably could have done a difference on a translate of the original.) It makes artifacts all over the place below the bottom surface.
I’m completely new to 3D printing and OpenSCAD. I figured it would be a total pain to come up with some kind of formula that produced the shape I wanted, but surface sounded great. But then I thought I’d be wasting a whole lot of resin making it a solid cup, so what I really want is a thick-enough-to-print-but-thinner piece, and came up with the top and bottom surface, and a difference between them. Very close to what I’d want, but I’m concerned the artifacts mean I’m headed the wrong way. Suggestions?
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org