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Screw gauge

Posted: February 25th, 2017, 11:28 am
by LePaul
Printed with S3D. Any tweaks you can think of?
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Re: Screw gauge

Posted: February 25th, 2017, 7:40 pm
by LePaul
Maybe I'll do one with Cura and compare

Re: Screw gauge

Posted: February 26th, 2017, 12:33 am
by LePaul
Cura one printing now (2.4 Beta)

I'm wondering why the surface came out this way on S3D?
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Re: Screw gauge

Posted: February 26th, 2017, 12:35 am
by LePaul
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Re: Screw gauge

Posted: February 26th, 2017, 1:04 am
by LePaul
Okay compare!

Cura version of the same model
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Re: Screw gauge

Posted: February 26th, 2017, 3:50 am
by Xeno
The S3D looks like it has a bigger shell-thickness, and also has a fat z-seam right inside the holes :)

Re: Screw gauge

Posted: February 26th, 2017, 4:19 am
by Neotko
It doesn't make much sense comparing two slicers without adjusting the settings of both. Cura uses a lot of speed down tricks, while s3d has less underspeed tricks. Anyhow, isn't a complex print.

First of all, do both prints take the same time to print? Because there are no faster/slower slicers (on the print time), just better or worse settings.

Re: Screw gauge

Posted: February 26th, 2017, 6:16 am
by Izzy
On S3D, the "only retract when crossing open spaces" I found that when it was printing the walls would retract at the end of each circuit of a wall or hole which led to clumps, rather than just a xy movement to the next circuit.

Re: Screw gauge

Posted: February 26th, 2017, 7:46 am
by Neotko
Izzy wrote:On S3D, the "only retract when crossing open spaces" I found that when it was printing the walls would retract at the end of each circuit of a wall or hole which led to clumps, rather than just a xy movement to the next circuit.
Continuous extrusion on bowden allows for the flex of the filament to accumulate pressure that goes free at the first retraction. More retractions (disabling only retract when crossing spaces) increases the amount of retractions, allowing to have less pressure on that last retraction. To compensate that machine errors you can use wipe at the end of each loop (so the pressure becomes part of the print) or Coast at end so the pressure is assumed that will go out at the end of a loop and becomes part of the print.

Problem with coast (I think I'm repeating over and over) is that depends on the filament, temp, and amount of dripping your filament, nozzle, temp, gives.

So... Cura, drops all that crap on the infill, making the exterior look better, but making poor exact prints.

You can do the same on s3d, but ofc, you just better do like cura, don't print more than one object at the time...

That's why cura makes horrible multiple objects at the same time, if you go faster than 50mm/s and you need more temp.

Cura handles the weak and (IMO) horriblr knurled bolt, so it prints ok, at the expense of infill and hiding errors inside the non visible areas. S3D since isn't tailored for a machine that drips, or can't handle retractions as good as others, it's made to print more exact, if you know the limits of your machine ofc.

Basically cura is for um, s3d can work with anything.

Re: Screw gauge

Posted: February 26th, 2017, 11:30 am
by LePaul
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Re: Screw gauge

Posted: February 26th, 2017, 11:33 am
by LePaul
Some of the S3D settings
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Re: Screw gauge

Posted: February 26th, 2017, 12:17 pm
by LePaul
Using that S3D profile, I am seeing some good prints. Not GREAT but good. I'm just curious what else to adjust to make it a tad better!