All my joints have been one-sided to allow poorly tuned printers to work for as many parts as possible. It also reduces assembly time.
Fork joints are superior. (Assuming that the fins of the forks are thick enough.) I have been considering going that direction. It has a nice side benefit of making the longest part only 125mm (from the model below) for a printer that has a 225mm print diameter. That means you can make a 1.8X LISA on a forked LISA. (If optimization of the macrocreation factor is desired you can even do better than that. I came up with 2.2X with just a little playing around.)
[attachment 26435 fork.png]
Here is how I would do it. I only uses 1 more unique plastic part than my previous design. You do need 12 M3x35 SHCS and matching nuts. That seems like a small price.
I am also considering doing this for GUS so that the motor/slave arms will be printable on a 150x100 printer.
Fork joints are superior. (Assuming that the fins of the forks are thick enough.) I have been considering going that direction. It has a nice side benefit of making the longest part only 125mm (from the model below) for a printer that has a 225mm print diameter. That means you can make a 1.8X LISA on a forked LISA. (If optimization of the macrocreation factor is desired you can even do better than that. I came up with 2.2X with just a little playing around.)
[attachment 26435 fork.png]
Here is how I would do it. I only uses 1 more unique plastic part than my previous design. You do need 12 M3x35 SHCS and matching nuts. That seems like a small price.
I am also considering doing this for GUS so that the motor/slave arms will be printable on a 150x100 printer.