+mytek Posted August 28, 2021 Share Posted August 28, 2021 I think you've most definitely outdone Ben Heck on this one ? Looking fantastic 5 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4894577 Share on other sites More sharing options...
+selgus Posted August 28, 2021 Author Share Posted August 28, 2021 6 hours ago, Mr Robot said: This is really starting to come together. How will you be latching the screen open/closed? On the top section, I have two locking clips and on the back of the display, there are two sets of tapered receiving holes that the clips mate with. There are also stops on the lower part of the top section, to let the screen rest in the closed position. 3 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4894648 Share on other sites More sharing options...
Mr Robot Posted August 28, 2021 Share Posted August 28, 2021 Very nice! I posted about this on facebook, twitter and the abbuc forums, I hope you don't mind. This project really needs to be seen! 2 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4894764 Share on other sites More sharing options...
+selgus Posted August 28, 2021 Author Share Posted August 28, 2021 2 minutes ago, Mr Robot said: Very nice! I posted about this on facebook, twitter and the abbuc forums, I hope you don't mind. This project really needs to be seen! You're very kind! Thanks for spreading the word. I have been putting a lot of hours into this project, and I do like the current direction. Now, if I only had my own 3D printer and didn't have to wait for my prints to arrive in the mail! 2 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4894766 Share on other sites More sharing options...
tschak909 Posted August 28, 2021 Share Posted August 28, 2021 @selgus I want one of these for #FujiNet use, badly. -Thom 1 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4894828 Share on other sites More sharing options...
+selgus Posted September 8, 2021 Author Share Posted September 8, 2021 Latest printing, this time in HP Multi Jet Fusion grey nylon 12.. I have been working a bit more on the design, to round off a few areas that had been bothering me.. so one more print to do before I call it official. 5 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4901539 Share on other sites More sharing options...
Fierodoug5 Posted September 8, 2021 Share Posted September 8, 2021 That looks amazing, so excited about this project! 1 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4901551 Share on other sites More sharing options...
+selgus Posted September 8, 2021 Author Share Posted September 8, 2021 Smallest PCB I've ever designed.. less than 1cm, a flexible cable connector.. with one that is fitted into the motherboard and one that is inside the LCD display enclosure. I am using a 4-connector flex cable to allow the LCD display to slide up and down inside the main body enclosure.. 5 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4901756 Share on other sites More sharing options...
+selgus Posted September 9, 2021 Author Share Posted September 9, 2021 These are the test I did with material jetting colored 3D prints for the keycaps. Reasonable results, but if I was to go in this direction, I would take some liberties with trying to maintain the same scale of the labeling to keycap sizes, and increase the labeling weight. The other limiting factor is these prints are very expensive to produce, so really doesn't make sense.. Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4902648 Share on other sites More sharing options...
+selgus Posted September 25, 2021 Author Share Posted September 25, 2021 It seems the keyboard is the place I am doing the most R&D and iterations.. I wasn't happy with the metal domes, as they were problematic with the 3D printed keycaps, and the whole trying to 3D print in color didn't give me the results I was after. So I've done another method, built up a PCB and modeled the 3D body middle section, along with pad. I'm going with a silicone keypad, with silicone rubber conductive carbon bucks buttons on the newly designed keyboard PCB. I've also re-modeled the body middle section to mate with the silicone keypad, along with modeling a 3D high-definition printed keyboard buck, which I am making a mold around, and then I can pour silicone keypads for the portable.. I also had needed to do another revision of the PCB anyways, as I needed to relocate the second connector to the bottom left-side, for clearance reasons. 6 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4911968 Share on other sites More sharing options...
+selgus Posted October 12, 2021 Author Share Posted October 12, 2021 Printed up the buck that I'll make my silicone mold from, and then pour the soft silicone keypads for my keyboards. The buck used Material Jetting VisiJet on a MJP 3D printer and was able to reproduce the engraved labels extremely well. These details will be picked up in the silicone mold, and thereby in the keypads.. Then each key has one of these silicone carbon bucks that makes contact with the keyboard PCB, to signal when a key is pressed.. I'm going to make the mold this week and hopefully pour a few keypads right after. 5 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4922261 Share on other sites More sharing options...
+selgus Posted October 22, 2021 Author Share Posted October 22, 2021 I made a silicone mold of the 3D printed keypad part, with limited success. It had some issues with air bubbles making some of the underside plungers not be represented properly in the mold, along with the labelling not being engraved deep enough to be represented well enough in the negative.. So I did another pass on the keycap labels, making them able to show up better when molded, plus I did a model of a 3D printed mold, instead of silicone casting of a 3D part, which is then molded.. This is the molds STL file and model renderings. I am 3D printing the mold now, so I can try pouring silicone directly into it, making my keypads. 4 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4929757 Share on other sites More sharing options...
ivop Posted October 22, 2021 Share Posted October 22, 2021 5 minutes ago, selgus said: It had some issues with air bubbles You can use a vibrating device of choice (electric toothbrush for example), to vibrate the substance to remove air bubbles. Similar to what they do when concrete is poured. Perhaps even connect a small wire to the tip of your vibrating device, and stick that into the not-yet-cured silicon. Vibrating device. Just had to say it another time. Now let the jokes come in 2 1 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4929769 Share on other sites More sharing options...
_The Doctor__ Posted October 22, 2021 Share Posted October 22, 2021 52 minutes ago, ivop said: You can use a vibrating device of choice (electric toothbrush for example), to vibrate the substance to remove air bubbles. Similar to what they do when concrete is poured. Perhaps even connect a small wire to the tip of your vibrating device, and stick that into the not-yet-cured silicon. Vibrating device. Just had to say it another time. Now let the jokes come in yes and a vacuum applied at the same time does wonders! 2 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4929812 Share on other sites More sharing options...
+selgus Posted October 22, 2021 Author Share Posted October 22, 2021 Yeah, I tried agitating the mold halves as they were setting, and it did help release air bubbles to the surface. I am getting a dental vibrator to use on my next attempt when I pour the silicone keypads. I don't believe a vacuum would have helped here, because it was not due to degassing the silicone, but how some air got trapped in some of the low-points. Vibrations and heat would help the next time. I am hopeful that removing one level of silicone fabrication, and using the 3d printed mold, will yield even better results. 2 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4930006 Share on other sites More sharing options...
+selgus Posted October 27, 2021 Author Share Posted October 27, 2021 3D printed mold halves came out really well, with my re-designed labeling with deeper engraving, should show up much better in the positive silicone keypads. Will pour a few this weekend.. 6 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4933038 Share on other sites More sharing options...
Mr Robot Posted October 28, 2021 Share Posted October 28, 2021 Those look really great! Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4933147 Share on other sites More sharing options...
+selgus Posted December 16, 2021 Author Share Posted December 16, 2021 As we are ending this year, I've been still iterating on the physical enclosure design, as the actual hardware has been finalized awhile ago.. it was interesting going back over the history of my initial thoughts and the journey along the way, to the place I landed. Here is the original concept I had when I started the project and my original prototype enclosure: Then I went through around 16 different versions, where I 3D printed the cases (I kept all of the revisions, as I want to do some sort of montage when I close out this project, before I melt them down), where this was where I gravitated towards: Along with my most recent modifications and what I have now labeled my final design (though I am still 3D printing up the upper layer of the body now): During the Holiday break, I'll be assembling the final console and can then begin adding additional tweaks to my BIOS, to really bring this project to completion. It has been a long journey, but a fun one! 10 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-4967449 Share on other sites More sharing options...
unixdude Posted March 30, 2022 Share Posted March 30, 2022 Wow, this is super awesome! It would be cool if this became a production system. Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5031581 Share on other sites More sharing options...
+selgus Posted July 1, 2022 Author Share Posted July 1, 2022 I was cleaning up a bit and these are all the different versions of the enclosure/keyboards/keycaps that I had 3D printed for the project.. sigh.. 4 1 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081850 Share on other sites More sharing options...
+DjayBee Posted July 1, 2022 Share Posted July 1, 2022 Real stores, selling stuff, often have less stock. ? Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081855 Share on other sites More sharing options...
ivop Posted July 1, 2022 Share Posted July 1, 2022 Wow. Just wow. How many hours you estimate this took to print? Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081859 Share on other sites More sharing options...
+mytek Posted July 1, 2022 Share Posted July 1, 2022 That's a lot of printing So what's the current status on your project @selgus ? Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081861 Share on other sites More sharing options...
+selgus Posted July 1, 2022 Author Share Posted July 1, 2022 58 minutes ago, ivop said: Wow. Just wow. How many hours you estimate this took to print? I used two different services, Shapeways and Xometry to do all my printing.. so I don't actually know the printing hours.. just cost. Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081886 Share on other sites More sharing options...
+selgus Posted July 1, 2022 Author Share Posted July 1, 2022 59 minutes ago, mytek said: So what's the current status on your project @selgus ? I did one more spin of the motherboard, and two versions of the keyboard (one which uses momentary physical tactile switches and one with carbon pill style PCB keys). R&D is complete and tests so far have been successful. Been assembling the final version now. Not sure what I am going to do with it next-- make units for any one whom wanted one, take your route and release the designs so others can make their own, etc. 2 Quote Link to comment https://forums.atariage.com/topic/306569-atari-portable-project/page/7/#findComment-5081892 Share on other sites More sharing options...
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