Hi Alan, On Thu, Dec 11, 2003 at 10:50:11PM -0500, Alan King wrote: > Yep, here is a picture of my CNC/driller. I wanted mostly metal, all > cheap hardware store components, and just drill hole assembly, no > slotting etc. I have a large electronics inventory, and have about 400 > stepper motors on hand and 2K mosfets and my own intelligent 4 and 5 > phase stepper motor controller/driver board. Also while you're at it > hit the beacon file, it looks good and I've now built much bigger one, > note it's a 3 MB mpg.. > > http://home.nc.rr.com/alan69/FlightGear/CNC.jpg
Do you have more pictures of your CNC ? Is the part that the steppers are mounted on some kind of plastic ? I'd like to see more pics of the details how you built your CNC :) > It's just being built. But it did hit me looking at it last night > that Windows handles 2 mice ok with both moving the pointer, just have > it USB and plug it in and leave the normal mouse alone. Must have some > scaling though, FlightGear is very touchy with my normal 400 dpi mouse. > First dot over from center is a noticable jump, more than it should be. You can set the mouse resolution down in windows, or alternatively, you could change the scaling of the mouse axes in flightgear. (XML file) > http://home.nc.rr.com/alan69/FlightGear/rudder.gif > have. Bellcrank has bearing at center, and the little squares are where > to put teflon pads from a mouse. The other short piece is cut from the Instead of teflon pads, you could use the material that those (usually white) bread cutting boards are made of. That material is relatively good to work with (sharp knife :) and are widely available. Its something that I've seen from one cockpitbuilder use and now others are using it as well, like me. ...and its not as tiny as the teflon pads from a mouse :-) > bellcrank board, and is underneath the guide plates with teflon on top. > Guide plates are captured and keep torque forces off the single rails. > > But, had far better idea. Move bellcrank to under the guide plates. > Use the short piece on top, and have the 1/4"-20 bellcrank axle screw > into it from the bottom, and not penetrate it. That way all wood > showing, crank and rods are hidden. Guide plates only have a 1/4" gap > where the axle comes through to support the top bar. Stained, this > should look way better than most homemade jobs easily, maybe better than > the made ones. Oh yeah extra hole or holes near the end of bellcrank is > through it, the guide plate, and partically through bottom plate. Drop > in a peg and locks in place to make a less shifty footrest when not in > use. These may look so good I'll have to start selling some on Ebay! :) Post some pictures of the rudder when you are getting there :-) > http://home.nc.rr.com/alan69/FlightGear/yoke1.jpg > http://home.nc.rr.com/alan69/FlightGear/yoke2.jpg > > Note in yoke1, that opening with tab for the clam is already there. > Simply clamp the bearing. At the other bearing, see the wider screw > slot? Two dremel cuts with a grinding wheel will make it a tab too for > the other clamp. Note that you need 2 more dremel cuts to cut the > corners of the bracket so it can rotate, corners are what's holding that > bracket from falling over. Four cut mechanical solution. Mouse goes on > bracket, control goes at end of threaded rod. This is upside down, and > note that mouse will be the first thing to hit, so may need a metal bar > across the bracket a bit wider than the mouse to hit first. Likely PVC > tube heated, bent, and molded slightly to grip shape to make the > control. Wrap in tennis grip etc, and hang it on a slope board with > sides. Rest of the buttons and controls are easy after this, and > relocate mouse wheel for other use like elevator trim. Do you plan on something like a centering mechanism, so that there is a force that'll push the controls into the center positions ? > Electronics will be easy, but we really need a good simple serial > format that FlightGear understands and can map to any controls. 19,200 > serial with 16 axes and 4 or 8 bytes should be enough, then let me use > XML config to tell which byte maps to which control. Everyone has a > serial port, it works in XP, and it's easy to do the hardware. Heck > have FG output on the serial too and run gagues etc. Haven't looked at > that FG programming side of it too much yet though, but the micro side > for the controls is simple.. The protocol and hooking it up to fgfs should be the easiest part compared to coming up and building the hardware. Thanks for the detailed descriptions :) Regards, Manuel _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
