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Beolover SyncDrive: DC Platter Motor Replacement for Beogram 4002 and 4004 (Type 551x and 552x)

Late Beogram 4002 and the 4004 (Types 551x and 552x), which have DC platter motors instead of the earlier synchronous AC motors usually suff...

Tuesday, May 2, 2017

Beolover MMC Cartridge Storage Box: Yet Another Redesign

Sadly, I had to retire my last Beolover MMC storage box design due to inconsistencies in Shapeways' production output. The tolerances requirements for press-fits is fairly high, and Shapeways seems to have variances that are too large. Recent orders yielded parts that were a bit too tight and the cartridges would not fit smoothly anymore.

Triggered by the desire of a customer to acquire a few of the storage boxes I set out to come up with a more robust (in production terms) redesign that can be printed directly by the Beolover Printer Farm. This shows my new approach:
The white insert is printed from a special flexible filament, which gives it a rubbery texture that holds the cartridge securely in place. This insert slides into a hinged hard shell box that protects everything. The insert is held in place by a protrusion from the bottom of the box that clips into a matching opening in the insert.

This shows the box closed:
The 'window' informs about the content of the box. So if one has several cartridges for different listening situations, it is easy to find the right box. Beolovely!

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