Il Razzo: 1-3 sliders plus optional Pitch/Roll



This is my first prototype. The device comes in two parts:

  1. stroker
    - 1-3 fully-independent slider elements driven by 12V brushless gimbals
    - the stroker is 25cm long, so that unused elements can be ‘parked’ completely out of contact. So for instance hand jobs can involve a single open element
    - the maximum stroke length depends on the sleeve configuration, min 13cm is expected, taking into account the ability to park all the elements
    - max weight tested for each slider is that of a quickshot with case, but with 3 elements acting together the total torque should be 50% more than SSR1
    - super-satisfying quick-release interchangeable magnetic receiver attachments
    - receivers for quickshot (with and without case), handy, youcups (including a nice magnetic stacking solution)
    - accepts input on 4 separate tcode channels representing body, mouth, and hands and distributes the available sliders appropriately
    - the 2nd motor can be added without modifications, the 3rd is added modularly with its own separate casing but doesn’t significantly affect the overall size
    - no lubrication needed

  2. base unit
    - has most of the electronics
    - has two versions:
    *** mini
    - fixed onto the back of the stroker, no servos so a little smaller
    - only usable with VESA arm
    *** maxi
    - uses 2 servos for pitch and roll
    - when in use, the two units are perpendicular at 0 pitch/roll
    - when not in use, folds into the back of the L-shape of the stroker
    - potentially usable to hold and tilt SSR1/Handy/other
    - max tilt angle should be around 40 degrees
    - noise of tilt servos is very acceptable, partly because smoothed, don’t expect rapid shaking though
    - usable either held by a VESA arm or on the stomach of the user, with straps going round the back (handsfree).

Random comments:
- as far as I know, this is the first device which can simulate contacts at a 40 degree angle and 13cm+ away
- splitting the load means that many individual parts don’t need to be so sturdy
- all the plastic parts can be printed on a printer with an 18cm3 build volume

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