Hehe sorry navarisun, we were referring to richh001's highly incorrect post, not your question!
The workbench is still new to this community - I'm not sure there's an easy answer for this one, there's not a lot of info like this. Hopefully if you're patient someone who has done this can respond, otherwise my recommendation would be:
* Follow E3D's instructions for assembling the hotend
* Search for and use instructions from this forum for older printers (e.g. SD3) for wiring, updating the firmware (noting that your printer needs a different configuration - two hot ends etc.!
* Experiment yourself with how the E3D fits into the workbench extruder, and share your results as they'll be handy for future users
You're the pioneer!
SD3. Mk2b + glass, heated enclosure, GT2 belts, direct drive y shaft, linear bearings, bowden-feed E3D v5 w/ 0.9° stepper
Smoothieboard via Octoprint on RPi