Hasn't been long since I've had my JGRO up and running but I've always known I'd be using it to build a better machine. I originally started with some test parts for Lionclaws which came out excellent but after much thought I decided Joes2006 would be the way to go.
My biggest hurdle was the length of parts for Joes was longer than the cutting capacity my JGRO. I've read that people do staged cuts but I don't have any formal experience in cncing and it took me some time to get my head around the concept. Cut2d made the task manageable and I successfully made some ribs for the y axis. All the remaining parts should be easy to calculate now that I have a understanding of the process.
I used a 1/8" 2 upwards spiral flute bit at 30ipm for these parts. 1/8" allowed me to drill holes for the sheet placement and use #8 screws for good self alignment. The parts were cut slow to limit deflection and came out much better than expected. I might want something with better accuracy than I can get with the JGRO but it's still a fine hobby build.
Don't know how long this build will take but probably not nearly as long as the JGRO. Electronics are already working and will be easy to transfer over and with the JGRO making parts is easy and far more accurate than cutting and drilling by hand. Still have to order some new parts but that's part of the fun.
Hmmm not sure what to do with the JGRO once I'm done this build. Be a shame for it to be dismantled. Maybe get the HobbyCNC package and get it running for someone else.