Hey guys, Just signed up, but I've been eying the site after checking out the OX build. So far, I love the V-slot design, site layout, and open source lovin I've seen around here, so I've decided to park it with you guys. First off, I'm fairly technical minded. I can read and write G-code, have some C++ experience, and am a competent machinist. Digital electronics I can hook up and most of the time understand whats going on. I'm glad to have found the site and a community of folks with varying levels of experience. So far, I'm looking to build an OX based machine which can handle aluminum and 3d wood at a decent rate while being able to plow through 2d wood. So many questions have come up that I have a hard time finding answers for. I have ordered: 3x 425 oz-in nema 23's from automationtechnologiesinc: http://www.automationtechnologiesin...stepper-motor-425-oz-in-14”-shaft-with-a-flat Their nema 17 76 oz-in: http://www.automationtechnologiesin...-stepper-motor-kl17h247-150-4a-for-3d-printer A TinyG v8 from synthetos and a cheap-o 24VDC 15A 350W power supply off ebay: http://www.ebay.com/itm/12V-24V-15A...41?pt=US_Light_Bulbs&var=&hash=item462b03e7bd Randomized thoughts and questions: (I'm all over the map here, so bare with me) 1. What should I expect as far as characteristic from these higher torque motors compared to say a 170 - 280 oz-in motor? They had a 495 oz-in 3A monster, but I felt I was pushing my luck already as the tinyG is rated for 3A max while sufficiently cooled. 2. I feel this power supply will be sufficient for juice and the bigger concern is whether or not It'll crap out because of quality. Agree or disagree? 2. I got the Nema 17 76 oz-in stepper for the Z for $6 and see that it is being used successfully. I do have concerns as to whether or not it'll be able to handle heavier spindles..say if I go with a heavy router. Anyone? 3. As far as spindles go I am still undecided. I really would love to have rigid tapping into Al (fingers crossed for form taps) off the bat, but would consider it as a second spindle upgrade option or for a future CNC. From what I know so far, I'd be looking at a lower RPM ranged spindle and some extra hardware all of which might not whip up saw dust as fast if I choose to work wood in 3D. Any guidence here would be great. Cost is not a huge limiting factor, but I'm trying to be conservative as this is a first project (and I have a wife). I would love to have a spindle start, spindle speed, spindle stop functionality, but I guess I could deal without it to begin with. A relay is always another option. 4. I would like at "least' a 2" - 3" Z range. I plan on making some sectioned molds with alignment pinholes out of foam. I'll layer them and vacuum mold over some and fiberglass others. Considering the current OX gantry plate heights and the loss of rigidity while at deeper Z depths, What length Z screw should I be considering. I know things are based on spoiler board thickness and all, but I'd love some guidance and input as to what I should be looking at as far as Z screw lengths. I have been considering a ball screw set-up for the Z because I am not particularly fond of lead screws from experience. 5. As far as any plates needed for an OX build that are not sold here. What's the best way to get a hold of these? Would I be better off obtaining the stock and having my local shop whip them up or are there builders offering them around here? I'd love some aluminum to start, but could deal with another rigid material to start. Anyone that has experience with prices and quality plz let me know. 6. should I expect any issues with conversion if I'm using a metric gt3 pulley and belt and machining in imperial? I'm guessing no, but might as well through it out there. Thanks for any feedback on any of these issues. I'm happy to be here and look forward to conversing with the group. Joe.