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| New cartridge - version 3 |
Re visited the design of this unit and had a thought about simplifying/updating it.
A reoccurring issue I hear is with the metal springs. Either they are not the ones stated on the PDF document I created, or just simply the stiffness isn't correct.
This upgraded design does away with metal springs and instead, I have created [am impressed with myself on this one 😄😄😄] a 3D printable spring!!
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| 3D printable spring [not print orientation shown] |
I did try a coil design, lol, as I use AutoCAD for work and we use 3D versions in our valves for visual representational use, but this wasn't going to work. So I created a flat 'Z' spring. The first one I printed from the design actually worked, first time.
This then required me to modify the cartridge housing and card plate, but everything else uses the original main motor bracket etc.
This cartridge is a direct size replacement for the original one, the only downside is that it now holds fewer cards due to the 'Z' spring not compressing as much as the metal springs did.
......but I then went and designed a TALL version. This is a new TALLer cartridge housing, and a new TALLer main motor bracket unit. The below image shows the new TALLer version being printed.
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| Version 3b, new TALLer version being printed |
The NEW version 3 Cartridge, is now uploaded to my Prusa account, click on the Prusa to be directed there.
Feedback: April 2025, .....'I printed the new cartridge and it solved my issue with the cards not ejecting repetitively!'
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....stores UK
