I have to make a bunch of batches of MMF and am currently fighting some Carpel Tunnel pain from being on the computer at work and home
I was wondering if I will destroy my machine if I try and mix the MMF in it.
Of course, I can always use my husband to knead if need be...
Thanks.

I do, although some kneading is still required.
Here's the video I learned from. It's part 1
http://www.youtube.com/watch?v=7yj4KGtBaDg&feature=youtube_gdata_player

i use the dough hook on my artisan kitchenaid to make my fondant (MMF, MFF, etc). i have yet to break it. if you're worried, you can make small batches at a time so as not to tax it too greatly at once.

I wouldn't make it without my Kitchen Aid. It does struggle towards the end but it's usually mixed well enough by then.

I've made it many times - start to finish - in my 6 qt Artisan KA. I made the mistake once of trying to double the batch and stalled out my motor - so would recommend that you don't try that!

Recently, I've switched to making MFF and like it better than the MMF. And it doesn't seem to make as much of a mess, IMHO. So I whip out three batches in series without much difficulty. It does take a little kneading at the end of the process, but is softer than the MMF to work with.

I had severe carpal tunnel issues with my right hand but finally had surgery about a year ago. It was like a miracle! One small incision in the palm of my hand on a Monday morning. I was knitting again on Wednesday evening and decorated a two tier cake 1 1/2 weeks later, with dozens of hand made fondant roses and lots of piped scrolls. I wish I'd had the surgery years earlier! All the best to you