Thanks Simon. I was concerned about the extruder/hotend combo because I have read about many issues with clogging and the bowden tube slipping. But I am sure everything will be fine and the print quality way better than our Prusa Mendel i2...
Right now it is just my impatience. The UM crew did a great job. I ordered three days ago and the kit is at 60% shipping progress.
I haven't studied the instructions in detail in over a year, but when I used them to put mine together, they were pretty good. The machine is really not that complicated mechanically - if you think about what's going on, and pay attention to the basics like getting things the right way round (the sides of the critical bits like frame and head are all labelled), then it will go fine.
The changes between the various revisions are fairly minor - particularly in the latest one, I think - so most anything less than maybe a year old is probably relevant. But off the top of my head I can't think of any assembly-related issues that have been posted on here that didn't come down to things not being put together right.
If you're not sure, just ask. We're a friendly bunch. :-)
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