- This topic has 3 replies, 3 voices, and was last updated 1 month ago by LectronFan.
June 3, 2020 at 13:43 #8749LectronFanModerator
Since I’m somewhat short of empty blocks, I thought it would be a good idea to make 3D printed white covers.
I would use the transparent bottom parts with all magnets and contact plates.
Inside the new white cover, there would be sleeves to insert a PCB with a circuit or part.
This could be wired to the contact plates by using small detachable connectors.
By reusing the transparent bottom parts and exchanging the white cover, it would be easy to make new blocks.
A colleague of mine was so kind to make a 3D replica of the higher legacy battery block.
He can print any shape : rectangle, square, flat surface, …
He added extra studs in the corners for strength. It fits perfectly to the transparent base and has exactly the same dimensions of the original (in the background).
Here are some pictures :
June 3, 2020 at 16:18 #8752mwpeters75Keymaster
Wow, 3D printing of Lectron System blocks! This is amazing!! No molds. Mr. Schrank had told me that new molds cost 100,000.00 Euros! This is a very exciting innovation Frank, well done to you and your colleague 🙂
June 6, 2020 at 15:34 #8772Guenni75Moderator
That’s really phantastic – even the lugs to fix the upper part in the clear lower part with the contacts. And the sleeves for different PCBs is a very worthful detail. That could be a new business case 🙂
In the last weeks I spend nearly 100 EUR to purchase very old Lectron sets (from the well known internet auction platform…) with a couple of this higher blocks for future projects, because these were available only until 1969!
A tuner block for an AM Broadcast superhet may look like this:
Here the double variable capacitor block is mounted at the smaller side to have enough place for a ferrit antenna with a movable (!) coil for best results. The mixer/oscillator stage (transistor, oscillator coil etc.) is in an extra block. With a flat ferrite antenna and a long-side-mounted var-cap block a PCB with all components are possible, too.
As a shortwave superhet all components can be placed on a PCB within this higher block because the input coil and oscillator coil are can be chosen suitable.
Thank you – and your colleague – again for this great result!
June 7, 2020 at 15:15 #8774LectronFanModerator
That is one of the reasons that this white module was printed.
I would love to mount a variable capacitor and oscillator circuit for the radio in this.
I will need more 3D blocks for the MF and amplifier.
To be continued for sure.
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