520ST PSU Remake

Repairs & upgrades.
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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

About 6 hours per half, down from 7. Quality looks good enough so far.
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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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

Sorry for the drip feed of updates, finding a window to do the 3d printing at a time when it doesn't disturb the family is a bit of a trick!

Here's the bottom half of the case, pre cleanup. Quality is OK at .3mm.
IMG_20190415_183502.jpg
IMG_20190415_183502.jpg (225.16 KiB) Viewed 4573 times
Hopefully the top will be done Wednesday.
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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exxos
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Re: 520ST PSU Remake

Post by exxos »

rubber_jonnie wrote: Mon Apr 15, 2019 6:49 pm Here's the bottom half of the case, pre cleanup. Quality is OK at .3mm.
Looks really nice!
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 ~
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PhilC
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Re: 520ST PSU Remake

Post by PhilC »

Considering that's 0.3 it does look pretty good. What infil did you use?
If it ain't broke, test it to Destruction.
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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

Infill was 20%. There are some support structures for the vents that need to be cleaned out, and a little bit of filing to do, but otherwise pretty good.

Considering my printer cost just under £100, I have to say I am pretty happy with the results. It goes to show that spending the time to set it up does pay dividends, about the only thing I had to change recently was the filament and bed temps when I got a new reel of filament.

I use Cura for slicing, and print via Repetier server installed on a laptop upstairs in my workshop. Repetier is great as it allows you to upload jobs directly via the web interface once you've sliced, rather than having to run around with an SD card. I also always use brim when I print stuff out, because it gives the print head time to extrude cleanly and adhere to the bed before the job starts properly.

I always follow a routine and home the bed before I do anything, and all my jobs start off with autolevel code too.

Will post more once the top half is printed.
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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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

Top half in progress :)
IMG_20190417_223129.jpg
IMG_20190417_223129.jpg (301.2 KiB) Viewed 4548 times
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: 520ST PSU Remake

Post by exxos »

rubber_jonnie wrote: Wed Apr 17, 2019 10:48 pm Top half in progress :)
Looking good!
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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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

Only another 2 hours to go!
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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exxos
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Re: 520ST PSU Remake

Post by exxos »

I loaded the bottom section..

100% fill 6H 58m - 23.29M
20% fill 6H 45m - 21.17M
10% fill 6H 38m - 20.91M
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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rubber_jonnie
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Re: 520ST PSU Remake

Post by rubber_jonnie »

exxos wrote: Thu Apr 18, 2019 2:17 pm I loaded the bottom section..

100% fill 6H 58m - 23.29M
20% fill 6H 45m - 21.17M
10% fill 6H 38m - 20.91M
Interesting. For me the bottom section was estimated at 5h 43 with 20% infill at .3mm. Top was 6 hours exactly. I can't remember travel times and print speeds off the top of my head.

@ .2mm both were 7 hours +.

I should be able to add a pic of the top sometime tonight.
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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