Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so)

From	Dan Purgert <dan@djph.net>
Newsgroups	alt.os.linux
Subject	Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so)
Date	2022-09-09 12:18 +0000
Organization	A noiseless patient Spider
Message-ID	<slrnthmbq7.2e4.dan@djph.net> (permalink)
References	<tfa1v3$7olu$1@dont-email.me> <slrnthh6i0.2e4.dan@djph.net> <tfbfgb$bv0g$1@dont-email.me>

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Soviet_Mario wrote:
> On 07/09/22 15:18, Dan Purgert wrote:
>> ["Followup-To:" header set to alt.os.linux.]
>> Soviet_Mario wrote:
>> 
>>> I'm completely new to 3D printing, but I do have a XYZ Da
>>> Vinci 3D printer and I've caught sort of an offer for 12 1
>>> kg coils (6 PLA, 6 ABS), so I am thinking about making sth.
>> 
>> ABS is somewhat challenging to use -- it likes to warp as it cools and
>> shrinks. You'd do best to start learning with the PLA.  I've used both,
>> without realizing the initial troubles I was having were BECAUSE of the
>> ABS itself.
>
> I've been warned many times about this :(

In all honesty, a couple cardboard boxes made a pretty passable
enclosure for my printer when handling ABS.  I just let it sit and
preheat for 15-20 minutes before starting the print; and then when it's
done, let the "chamber(tm)" come down to room temperature.

>>> [...]
>>> Another question : those slicers, also suggest the correct
>>> orientation ? I mean, the best orientation for stability of
>>> the intermediate states ?
>> 
>> No, the slicer just takes whatever orientation you give it.  It can
>> automatically add support material if needed, but it will not re-orient
>> the model in the event rotating it will make for a "better" or "easier"
>> print.
>
> so how to choose a proper orientation ?

Manually. Really depends on the part in question -- some stuff you can
just intuit (e.g. printing a toy horse will SUCK to try cleaning
supports out from beneath its belly / between its legs); other stuff
sometimes is a bit of trial-and-error

> I will have to print a collector : a large howllos pipe with 
> flanges at the edges and some ten much smaller "barbed" 
> pipes on one side, emergint at 90° to the main axis.

3d printers aren't really geared towards making fluid-tight parts.  I
mean, you can certainly make a quick fix for say your garden irrigation
system that runs at ~10 PSI / ~70 kPA ; but much more than that, you're
probably just gonna break the part.

It probably won't matter for a part like you described, but curved parts
are "difficult" -- you basically never get a smooth curve in the Z
dimension (it'll be a series of steps, based on layer height / nozzle
diameter / etc).

Finally, you also have to consider that the parts are weakest at the
layer lines. For example, if you print a 20x20x200mm part that's laying
on its side (i.e. X or Y is 200mm long), it will be a LOT harder to
break than an identical part where Z was the 200mm dimension.

>>> Last question : can the slicers guess the "filled" volume ?
>>> This in order to esteem in advance how much plastic one will
>>> consume.
>> 
>> yes, most will give you an indication of how much plastic you need (Cura
>> will give a rough length -- e.g. 1 or 2 meters, etc).
>
> if it assumes the same diameter of my filament, the length 
> would be equivalent to a volume of plastic.

You have to tell the slicer the filament's diameter (usually 1.75mm
nominal for a desktop / hobby 3d printer). 

Do bear in mind that there are a number of factors that go into a
print's plastic consumption; so there is not a 1:1 relationship between
"part size" and "filament used". 

>
>> 
>> 
>>> Err ... another questions. If one runs out of coil during
>>> printing, the average printer is smart enough to suspend the
>>> work, let the user refill the coil, and resume the work ?
>> 
>> no.  You have to accommodate for that (e.g. splice old / mostly used
>> spools into one)
>
> is it possible ? With splice you mean "weld" two parts 
> together ? The welding is smooth enough not to clog the 
> nozzle ? is strong enough not to tear ?

Yeah,  heat up the two ends until they're soft enough to fuse, and stick
them together. Clean up any resulting blob of plastic with a knife after
its' cooled.  It really only needs to be strong enough of a joint to
survive being pulled into the extruder.

I've considered using an aluminum block to make a jig (plus a
replacement heating element off ebay) ... just haven't gotten around to
it.  A soldering gun with a tip I don't care about works well enough
today.

>
>> 
>>> sorry another question, LOL
>>> are there DRIVERS for the Da Vinci XYZ 3D printer for debian
>>> ? The CD had only windows drivers ...
>> 
>> I've not come across ever needing "a driver" for the printer -- usually
>> just a USB -> UART converter chip on the printer.
>
> the printer has an USB port. I'll format one in VFat [...]

Check what the printer can read from the SDCard -- most will do FAT or
NTFS since that's what they come preformatted as.  

The USB port is probably just a bog standard FTDI USB -> USART
converter; or one of the various chinese parts that're similar (such as
the CH340s that come on a lot of Arduino clones).  Easiest way to check
is probably the printer documentation, or a community forum.

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|_|_|O| Github: https://github.com/dpurgert
|O|O|O| PGP: DDAB 23FB 19FA 7D85 1CC1  E067 6D65 70E5 4CE7 2860

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[crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Soviet_Mario <SovietMario@CCCP.MIR> - 2022-09-07 14:13 +0200
  Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Dan Purgert <dan@djph.net> - 2022-09-07 13:18 +0000
    Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Soviet_Mario <SovietMario@CCCP.MIR> - 2022-09-08 00:39 +0200
      Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Dan Purgert <dan@djph.net> - 2022-09-09 12:18 +0000
  Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) "J.O. Aho" <user@example.net> - 2022-09-07 16:51 +0200
    Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Soviet_Mario <SovietMario@CCCP.MIR> - 2022-09-08 00:42 +0200
      Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) "J.O. Aho" <user@example.net> - 2022-09-08 07:56 +0200
      Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Dan Purgert <dan@djph.net> - 2022-09-09 11:34 +0000
        Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Aragorn <telcontar@duck.com> - 2022-09-09 19:08 +0200
          Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Dan Purgert <dan@djph.net> - 2022-09-12 10:28 +0000
            Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) "J.O. Aho" <user@example.net> - 2022-09-12 14:36 +0200
            Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) 5GyYap52yQ1UGMWD <ehj46PkBWfBAng9C@VW28LtWn6wknpUMV.invalid> - 2022-09-12 21:29 +0800
              Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Paul <nospam@needed.invalid> - 2022-09-12 13:58 -0400
                Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) 5GyYap52yQ1UGMWD <ehj46PkBWfBAng9C@VW28LtWn6wknpUMV.invalid> - 2022-09-13 08:41 +0800
                Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Paul <nospam@needed.invalid> - 2022-09-13 03:20 -0400
                Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) 5GyYap52yQ1UGMWD <ehj46PkBWfBAng9C@VW28LtWn6wknpUMV.invalid> - 2022-09-13 16:38 +0800
            Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Aragorn <telcontar@duck.com> - 2022-09-12 20:58 +0200
              Re: recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Dan Purgert <dan@djph.net> - 2022-09-13 10:12 +0000
  Re: [crosspost] recommended slicers for 3D printer and 'filled' volume? estimation (drivers, consumes and so) Robert Heller <heller@deepsoft.com> - 2022-09-07 15:23 +0000
    Re: [crosspost] recommended slicers for 3D printer and 'filled' volume? estimation (drivers, consumes and so) Soviet_Mario <SovietMario@CCCP.MIR> - 2022-09-08 00:43 +0200
  Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) not@telling.you.invalid (Computer Nerd Kev) - 2022-09-08 09:50 +1000
    Re: [crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so) Soviet_Mario <SovietMario@CCCP.MIR> - 2022-09-08 03:18 +0200

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