3D printing of Psion II parts.

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NickKostelidis
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3D printing of Psion II parts.

Post by NickKostelidis »

I have given a comms link case for 3D printing.
I got the stl files.
Here are some photos.
I am waiting now for the first printed comms link case.
I am really curious to see what it will look like.
Attachments
Comms link case 3d_7.jpg
Comms link case 3d_6.jpg
Comms link case 3d_5.jpg
Comms link case 3d_4.jpg
Comms link case 3d_3.jpg
Comms link case 3d_2.jpg
Comms link case 3d_1.jpg
NickKostelidis
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

And the second part.
Attachments
Comms link case 3d_2_5.jpg
Comms link case 3d_2_4.jpg
Comms link case 3d_2_3.jpg
Comms link case 3d_2_2.jpg
Comms link case 3d_2_1.jpg
NickKostelidis
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Joined: Wed Jan 27, 2021 8:23 am
Location: Athens - Greece
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

This is my first try of 3D printing of a comms link case.
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MartinReid
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Joined: Wed Jan 27, 2021 3:44 pm

3D printing of Psion II Comms Link Case

Post by MartinReid »

It looks great Νίκος, better than the one I drew by hand.

If you have time you could share the printer settings...

3D slicing software....
Printer name....
Printer type.... (Cartesian - Delta - Polar)
Print bed.... (heated - not heated with tape or glue stick etc..)
Filament.... PLA ABS other?
Temperature's and Settings....
Issues.. Any 'stringing'? - Bed adhesion! etc...
Which way up was it while printing (photo!)

Can you edit the 3D model? You could close off the 'hole' for the original lead when used with the USB lead.

I'll say it again... It looks great.
Regards Martin
NickKostelidis
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

Hello to all friends. I have to say that I do not have a 3D printer. I have given  an original case to an expert https://prototypa.gr/en/services/3d-scanning/
He scanned it for me  and he gave me the stl files.
Then I gave these files to another expert
https://www.3drevolution.gr/en/pages/about-us
and I asked him to print a case for me.
So I don't have any idea about the information Martin asks.
I can ask him and if he tells me I will share this information.
Martin yes the stl file can be edited.
For the moment I have asked him to erase the hole for the red led and print another case without the hole for the red led.
As soon as I receive the new case I will upload photos.
I see on Olivier's page that for the moment USB comms link board is not available. As soon as this will be available I will order Olivier to send me one. So I will give it to the expert to make the necessary modification and print one piece.The plan is to close the big hole and make the hole for the USB connector smaller. If it is possible I want to make this hole to have exactly the same shape with the shape of the connector.
On this point I have to say that the case you look at in the photos is good but it is not like the original one. But it works.
Yesterday I pressed the clip and I broke it.
If it was, the original would never have been  broken like this.
But even with a broken clip it works properly.
So I am thinking of making a modification to the stl file and print a case without clip. Just like the one I see on Martin's image.
I also want to check if it is possible to make a case with plexiglass using a CNC machine.
I will keep in touch.
Attachments
DSC_0436.JPG
DSC_0435.JPG
DSC_0434.JPG
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MartinReid
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3D Printing of Psion II parts - Continued

Post by MartinReid »

Continuing

I would never have got that clip to work, but fortunately my case was quite tight when connecting to the organiser; In normal use it would never come out.

I have two USB boards from Olivier; the original doesn't have an LED but the revised micro USB board does have the LED. So I would not remove the LED hole.

Also to make it easier to print I eliminated the two locating 'lugs' (the one on the top and the one on the bottom of the case) and relied on the screw to hold the case together.

BUT let's not lose sight of the fact that it looks great. I think there will always be some layers visible when using 'plastic' PLA or ABS. To the extent that I once printing a workshop part in 'wood filled' PLA and with the layering it looked like real wood.

I have it on good authority that Peter had some labels printed for his stock of USB Comms Links.

Keep posting

EDIT

PS.. I've just visited the 3DRevolutions web-site and seen their information about 'moulds'. What would be the cost of getting a mould made so we could cast the parts for the cases in coloured resin? That would probably give the closest surface finish to the original. I say this but I've no experience of casting parts in resin.
NickKostelidis
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

Martin these molds you read on the site are molds for paraffin casting.
I don't think that we can use them for a cooms link case.
But I will ask if we can make a mold for our project.
Best regards to all :)
NickKostelidis
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Joined: Wed Jan 27, 2021 8:23 am
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

Hello to all.
Following Martin's instruction, I ordered today some changes to the next comms link case. The big square hole for the power adapter will be closed.Also on the next case will not exist any clip. It works fine even without a clip and the case can be fitted very well.
Furthermore the small piece of plastic behind the big square hole will be erased. It is not necessary while the big hole for the power adapter will not exist anymore.
So as soon as I receive the the usb comms link board from Olivier, I will bring it to the lab in order we fix the shape of the small square hole for the micro usb connector.
Martin I asked Vagelis (General director of 3D Revolution company) about the molds. The cost for the mold for one piece is more that 2000 Euros. So we forget it.
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DSC_0448.JPG
DSC_0447.JPG
Comms link case 3d_1_2.jpg
Comms link case 3d_1_1.jpg
NickKostelidis
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Re: 3D printing of Psion II parts.

Post by NickKostelidis »

Some more photos.
The board inside the case is the classic comms link (Olivier's version).
Attachments
DSC_0456.JPG
DSC_0455.JPG
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MartinReid
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3D printing of Psion II parts. (Finishing)

Post by MartinReid »

Νίκος… You can see the classic layering of the 3D printing filament. Did '3D Revolution' tell you if they used PLA or ABS?

The lengths some people go to to finish PLA and ABS printed parts is outlined (here)

Maybe we could consider a different 3D printing technique... outlined (here)

Martin
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