MPF920 to Atari Small button conversion, 3D printing
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MPF920 to Atari Small button conversion, 3D printing
Copied from my website:
http://www.tercsirobi.byethost14.com/in ... Conversion
Hacking days are over
A possible way to convert Sony MPF 920 to be compatible with Atari ST (F/FM/E) small button drive cases.
Failing drives are common with Atari ST computers nowadays. Because Atari used a nice but hard to find design for the floppy drives, you need to modify the top case in order to add the replacement drive in.
I personally not fan of hacking the original top (I hate it in fact) so with 3D printing available for cheap I'm looking for a solution to use the popular and easy to find Sony MPF-920 drives in Atari STs.
The solution is simple, the bezel is Atari compatible on the front and clips onto the MPF-920 as it's original bezel. The door and eject button is adjusted as well.
Please note: When installing the MPF920 you need to turn the floppy cable around, which means you might need to extend it.
Also, drive ID must be adjusted (From D1 to D0), this means re-positioning a small smd resistor. I'm not covering these mods in this article.
I've done the 3D modelling the next step is to get it printed and test if prototype works as I wanted.
Progress:
29/07/2016 - I sent the first files to print, waiting for them to arrive.
http://www.tercsirobi.byethost14.com/in ... Conversion
Hacking days are over
A possible way to convert Sony MPF 920 to be compatible with Atari ST (F/FM/E) small button drive cases.
Failing drives are common with Atari ST computers nowadays. Because Atari used a nice but hard to find design for the floppy drives, you need to modify the top case in order to add the replacement drive in.
I personally not fan of hacking the original top (I hate it in fact) so with 3D printing available for cheap I'm looking for a solution to use the popular and easy to find Sony MPF-920 drives in Atari STs.
The solution is simple, the bezel is Atari compatible on the front and clips onto the MPF-920 as it's original bezel. The door and eject button is adjusted as well.
Please note: When installing the MPF920 you need to turn the floppy cable around, which means you might need to extend it.
Also, drive ID must be adjusted (From D1 to D0), this means re-positioning a small smd resistor. I'm not covering these mods in this article.
I've done the 3D modelling the next step is to get it printed and test if prototype works as I wanted.
Progress:
29/07/2016 - I sent the first files to print, waiting for them to arrive.
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https://sites.google.com/view/tercsirobi/home
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Re: MPF920 to Atari Small button conversion, 3D printing
I have both the Sony and an Ultimaker 2 printer here ready to test any .STLs with 
/Troed

/Troed
Re: MPF920 to Atari Small button conversion, 3D printing
Awesome stuff, interesting to see how they turn out 

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- umberto1st
- Obsessive compulsive Atari behavior
- Posts: 138
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Re: MPF920 to Atari Small button conversion, 3D printing
Very interested
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Re: MPF920 to Atari Small button conversion, 3D printing
looking forward to this 

Re: MPF920 to Atari Small button conversion, 3D printing
Me too ! 

My blog, mostly about Atari and demo stuff.
Re: MPF920 to Atari Small button conversion, 3D printing
I could probably find a use for a few buttons myself too, I've got a few MPF920 drives and a few of STs with dead drives.
I hacked an (ALPS?) floppy drive to long button format, but it's PITA and takes some time and effort...
I hacked an (ALPS?) floppy drive to long button format, but it's PITA and takes some time and effort...
Re: MPF920 to Atari Small button conversion, 3D printing
Any updates with this ?
Would you share the stl's Robson ?
Cheers
Would you share the stl's Robson ?
Cheers

Re: MPF920 to Atari Small button conversion, 3D printing
If you need any help Robson I have a Makerbot
Atari Falcon Tos 4.04 | 14mb | IDE CF 2GB
Atari STE Tos 1.62 | 4mb | HxC Slim SD 8GB
Atari STE Tos 1.62/2.06 | 4mb | Floppy A-B Mod | IDE SD 4GB
Atari STFM
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Atari STE Tos 1.62 | 4mb | HxC Slim SD 8GB
Atari STE Tos 1.62/2.06 | 4mb | Floppy A-B Mod | IDE SD 4GB
Atari STFM
Android Devices (Running Hataroid and SToid)
Atari Forum Wiki - Use it before asking
- dlfrsilver
- Atari God
- Posts: 1517
- Joined: Mon Jan 31, 2005 1:41 am
Re: MPF920 to Atari Small button conversion, 3D printing
why not creating one for the HxC ? This would allow people to just install, and not drill and cut their ST casing ? 

Now SPS France representative since the 19th of June 2014. Proud to be an SPS member !
Re: MPF920 to Atari Small button conversion, 3D printing
The project is not forgotten but on hold for now. I have the design ready to test. Next is to buy a printer.
You don't have to cut the case to put a gotek (with hxc) in the atari. And there are many other cased Hxc emulators with different button positions. I don't think I'll go down that way.
You don't have to cut the case to put a gotek (with hxc) in the atari. And there are many other cased Hxc emulators with different button positions. I don't think I'll go down that way.
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- dlfrsilver
- Atari God
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Re: MPF920 to Atari Small button conversion, 3D printing
Really ? all the ones i saw need to cut the case. Do you have any link handy ?Robson wrote:The project is not forgotten but on hold for now. I have the design ready to test. Next is to buy a printer.
You don't have to cut the case to put a gotek (with hxc) in the atari. And there are many other cased Hxc emulators with different button positions. I don't think I'll go down that way.
Now SPS France representative since the 19th of June 2014. Proud to be an SPS member !
Re: MPF920 to Atari Small button conversion, 3D printing
I meant this without cutting.dlfrsilver wrote:Really ? all the ones i saw need to cut the case. Do you have any link handy ?Robson wrote:The project is not forgotten but on hold for now. I have the design ready to test. Next is to buy a printer.
You don't have to cut the case to put a gotek (with hxc) in the atari. And there are many other cased Hxc emulators with different button positions. I don't think I'll go down that way.
http://img.tradera.net/images/544/23171 ... b91a8f.jpg
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https://sites.google.com/view/tercsirobi/home
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https://sites.google.com/view/tercsirobi/home
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