exxos blog - random goings on

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Re: exxos blog - random goings on

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Upped the head from 210 to 220 and it seems to be behaving again now.. I did lower the speed a bit as well.. so hopefully this setting will work for the full print..
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Re: exxos blog - random goings on

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rubber_jonnie wrote: Thu Apr 18, 2019 1:19 pm What materials/temps are you using? ABS or PLA?
The blue stuff is ABS. The quality is amazing (when it behaves) :)
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: exxos blog - random goings on

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exxos wrote: Thu Apr 18, 2019 1:20 pm
rubber_jonnie wrote: Thu Apr 18, 2019 1:19 pm What materials/temps are you using? ABS or PLA?
The blue stuff is ABS. The quality is amazing (when it behaves) :)
Yeah, the print quality is very nice indeed, I may have to try a roll of ABS.

Mind you, my last prints for the PSU case have been very much draft quality to get the insane print times down. I wouldn't want to go to a layer height of more than .3mm, or the quality will likely be nasty. At .3mm it is good enough for a box that sits on the floor.

I expect at .1mm it would be amazing, but I also expect the end of the universe to happen before the print finished!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: exxos blog - random goings on

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rubber_jonnie wrote: Thu Apr 18, 2019 1:23 pm Yeah, the print quality is very nice indeed, I may have to try a roll of ABS.

Mind you, my last prints for the PSU case have been very much draft quality to get the insane print times down. I wouldn't want to go to a layer height of more than .3mm, or the quality will likely be nasty. At .3mm it is good enough for a box that sits on the floor.

I expect at .1mm it would be amazing, but I also expect the end of the universe to happen before the print finished!
I'm using 0.12mm... slow print times indeed.. but the accuracy and quality is super nice.

My print failed again... thats the problem with it, hard to get faster speeds :(

I've lowered the stepper voltage to 80% as well, a whole lot less banging about now :)
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

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exxos wrote: Thu Apr 18, 2019 1:28 pm
I'm using 0.12mm... slow print times indeed.. but the accuracy and quality is super nice.

My print failed again... thats the problem with it, hard to get faster speeds :(

I've lowered the stepper voltage to 80% as well, a whole lot less banging about now :)
Interesting, I don't have an option to drop stepper voltages (Or haven't found it), though to be fair I don't get any banging around, though that may be that there is a lot of overtravel space built in on all the axes.

I need to work out a way to speed things up without reducing quality. Even at .3mm it still took nearly 6 hours last night to print the other half of the PSU case (It finished about 01:00, and is still on the printer bed as I had no time this morning!).

Maybe I need to look at infil, see how changing that can speed stiff up. I don't like speeding up head speed (other than travel between points when not printing), as I worry about layer adhesion.

Maybe I can look at some of this stuff over the Easter weekend!.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: exxos blog - random goings on

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I turned off infill for these tests.. It's surprising how much more filament it uses.. It pretty much jumped from 4.5M to 6M! I was using 15% before... And there is not really much mass to this box other than the bottom plate.

Speed wise it went up by about 10 minutes with the fill turned off. I was actually surprised about this, as I would have expected all the extra movements doing the hexfill would have been slower than just printing solid line. So a 15% fill seems to be a win-win really.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

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exxos wrote: Thu Apr 18, 2019 1:52 pm I turned off infill for these tests.. It's surprising how much more filament it uses.. It pretty much jumped from 4.5M to 6M! I was using 15% before... And there is not really much mass to this box other than the bottom plate.

Speed wise it went up by about 10 minutes with the fill turned off. I was actually surprised about this, as I would have expected all the extra movements doing the hexfill would have been slower than just printing solid line. So a 15% fill seems to be a win-win really.
I used 20% infill on the PSU case, but it's so thick, so I don't think that would work in this scenario.

I'll have to load up my models again and try tweaking infill, see what the slicing results are, maybe go for 10% and try different infill patterns.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: exxos blog - random goings on

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rubber_jonnie wrote: Thu Apr 18, 2019 1:58 pm I used 20% infill on the PSU case, but it's so thick, so I don't think that would work in this scenario.

I'll have to load up my models again and try tweaking infill, see what the slicing results are, maybe go for 10% and try different infill patterns.
Do you get a time estimate ? Would be interesting to see what 20% fill vs 10% fill gives time wise.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

Post by rubber_jonnie »

exxos wrote: Thu Apr 18, 2019 1:59 pm
rubber_jonnie wrote: Thu Apr 18, 2019 1:58 pm I used 20% infill on the PSU case, but it's so thick, so I don't think that would work in this scenario.

I'll have to load up my models again and try tweaking infill, see what the slicing results are, maybe go for 10% and try different infill patterns.
Do you get a time estimate ? Would be interesting to see what 20% fill vs 10% fill gives time wise.
When I slice an object in Cura, it gives you a time estimate when it finishes slicing, along with an option to save the file. I also use Repetier server to print, and it also gives an estimated time of completion and a percentage complete during printing.

Will try and get some screenshots when I next can.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Re: exxos blog - random goings on

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Image doesn't do it justice.. but at least back on track :)

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Now trying 0.2mm print.. saved half a hour , so huge speed increase there!

To be continued...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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