Il Razzo is a printable multi-axis Tcode stroker aimed at improving realism. Where you see things on screen should match where you feel them.
With multiple independent sliders, you can get a hand job and blow job simultaneously at different speeds. When only a hand is in action, only an open, hand-sized contact is felt. Especially useful for sensitive types: you’re not constantly being over-stimulated by a single full-length sleeve.
With the unique combination of a tilt mechanism with a straight track, interactions at an angle are also more realistic, right to the tip.
Updates
- modified quickshot and youcups receivers to support twisting
- successfully tested a receiver connected to two motors to drive heavier sleeves. Swapping in the new receiver and pressing the configuration button a couple of times takes 30 seconds, no rebuild necessary!
- all receivers are now powered automatically when the magnetic connection is made (for twist, dilation etc)
- posted a video-synced demo. Single-sleeve devices are starting to look a bit boring!
- discovered 2nd prototype tolerates much better tilting, 70 degrees or more roll, upto maybe 60 degrees pitch
Folded for storage
Stroker slotted into roll arms. The pitch arm is in a recess in the control unit.
Ready to attach sleeves. The sleeve magnets attach to the steel balls on the sliders.
2nd prototype controlled by MFP with a real script. Notice how the “mouth” drops in and out as needed.
2nd prototype with dual independent twist receivers (apologies for the jerkiness, data problem)
1st prototype with 3 sliders
Details
The device comes in two parts:
-
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 a single slider is that of a quickshot with case
- accepts input on 4 separate tcode channels representing body, mouth, hands and “other” and distributes the available sliders appropriately
- the 2nd motor can be added to the case without modifications, the 3rd is added modularly with its own separate casing but doesn’t significantly affect the overall size
- no lubrication needed -
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 60 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).
Receivers
The devices uses super-satisfying quick-release interchangeable magnetic receiver attachments that also provide the receiver with power for effects like twist or dilation.
There are currently receivers for Quickshot (withoutcase, withoutcase+twist, withcase), Handy and Youcups (with/without twist),including a nice magnetic stacking solution.
Twist receivers are extremely easy to build and need only a standard 9g microservo which costs virtually nothing. Range for the prototype is around 110 degrees, larger ranges are probably possible.
Twist receivers are driven by independent Tcode channels linked to their linear channel. So, for instance, large twist could be applied automatically to hand contacts, less for mouth and none for body to differentiate the contact types as much as possible.
Receivers can support multiple motor connections to drive heavier sleeves. 2 motors is similar torque to SSR1, 3 motors should be 50% more than SSR1
Random Comments
As far as I know, this is the first device which can simulate contacts at large angles and 13cm+ away.
Splitting the load to multiple motors means that many individual parts don’t need to be so sturdy, wear out more slowly and motor heat has a much larger dissipation area.
All the plastic parts can be printed on a printer with an 18cm3 build volume
Any thoughts on that?