Model 416 Meta Expander V2

Model 416 Meta Expander V2 from gd2 on Vimeo.
Some Meta Patches on the new Model 416 Meta Expander.

With a surprise ending...

via http://guyd2.com/416/

"The Model 416 Meta Expander is a fully-fledged, standalone breakout box for the BEMI/BUSA Music Easel, which provides access to all of the Easel- and Program Card's patch points (effectively doubling the Easel's control voltage possibilities), and greatly extends the Easel's capabilities with useful, built-in modules.

Version 2 is available as either a "full option" build into its own boat, or as a "panel only" version which can be build into exisiting 4U Buchla boats- or cabinets.

The Model 416 Meta Expander communicates bi-directionally with the Easel by means of a custom-designed Edge Card and a 60-pin flat ribbon cable assembly.

A first prototype of a breakout box was developed in early 2014, right after BEMI's new Easel became available. Several iterations and a 2nd Easel later, I developed a one-off Twin Expander -- aptly named the Model 844 Expander (note the willful 208x4 error). After getting quite a few requests from fellow Weaselers, and realizing that it might be a better idea to limit a commercial version of the Expander to a one-Easel configuration, I designed the Model 416 Meta Expander V1, and brought it to market at the end of 2017. This was a one-run-only, build to order project. The last one left July 2018.

Since then I've gotten some more requests, so in August 2019 I decided to design a new version. Rebuilt from the ground-up and adding new features, it took more than half a year to finish. And then -- ready to be released on the 1st of March 2020 -- something weird happened to the planet...

Nevertheless, it's now August 2020, and Version 2 is here.

Read on..." click through for additional details.

Pre-Orders on Muffs

"Two versions are available :

- Standalone, with Buchla-compatible 4U boat (by SaModular) and custom support stand (by CoverUp).
€1800 (euros), all in. (*)

- Panel, which is meant to be build into existing Buchla-compatible cabinets or boats.
€1650 (euros), all in. (*)"

Buchla Format Meta Model 416 Meta Expander Demo Videos

Model 416 Meta Expander with an external clock. from gd2 on Vimeo.

"Ratcheting the Easel"

See this post for details on the Buchla Format Meta Model 416 Meta Expander. Pre-orders have been extended to the end of January.

Model 416 Meta Expander from gd2 on Vimeo.

Showing off the Universal Slope Generator.

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New Model 416 Meta Expander for the BEMI Buchla Music Easel

via guyd2.com

"The Model 416 Meta Expander is a fully-fledged, standalone breakout-box for the BEMI Music Easel, which provides access to all of the Easel- and Program Card's patch points (effectively doubling the Easel's control voltage possibilities), and greatly extends the Easel's capabilities by having several useful modules build in.

The Model 416 Meta Expander communicates bi-directionally with the Easel by means of a custom-designed Edge Card and a 60-pin flat ribbon cable.

A quick rundown of the Model 416 Meta Expander's capabilities:

Doubling the Easel's patch panel CV's (pitch, timbre, period, etc), with modulation depth controls. This then allows to modulate these parameters with [at least] two sources simultaneously.

Bringing out extra patch points not accessible on the Easel's patch panel. Full control over the Envelope's Attack, Sustain & Release. Voltage control over the Complex Osc's Waveshape Level. Access to all of the Sequencer's steps, and control over its number of Stages. Access to Random Voltages 3 & 4 (the Easel's patch panel only provides RV's 1 & 2).

Trigger inputs for the Sequencer, Envelope, Pulser & Random, opening up the Easel to external synchronisation.
Full voltage control over most of the Easel's switches.

In addition, the Model 416 Meta Expander offers extra custom-designed modules to vastly expand upon the Easel's features:

Two fast Comparators, with threshold control, for pulse generation, with both 3.5mm & banana inputs, separate outputs (2ms @ 10V), as well as a combined output (A+B). They can drive any triggerable module in the Easel.

A Noise module with White, Pink-ish and Slow-Varying Random outputs. Since White & Pink Noise are simultaneously available at Tini-jax & banana outputs, they can serve as both modulation- and audio sources. Slow Random is available at several patch points across the panel.

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