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John Ross wrote: Before you go searching for such an amp, you might compute what force this can provide to the machine, and see if it is necessary to get full performance from the motor. I suspect

I pulled one of the servo motors from the Gantry router I picked up yesterday. I says SEM Small Electrical Motor Company DC Servo Motor. Type 30R4-42 Const Stall Torque 28 Lb in. Max PRM 3200

daveland@... wrote: Do you have a home switch? Is this an encoder-feedback system, or stepper open-loop? Jon

Ron Ginger wrote: This ocurrs when the length of belt causes it to resonate (like a guitar string) at the step frequency. It could cause some wiggles in the cut being made. If not, I wouldn't

Hi Matt, I built rt2.0 (2.2.13 kernel) without SMP support. It works fine for my primary uses. I noted after the fact that INSTALL.phil had it enabled as an example. One thing you do need to note,

Bill, While you're waiting to tackle EMC you might give STEPSTER a try. It's free and runs from dos through the parallel port. Charles Gallo has been working on it for while and I think it's

Hi, I've been wanting to try and get EMC running and thought a good start would be to get the RT kernel working. I got the pre-patched 2.2.13 kernel from rtlinux.org and managed to get it compiled

I have my Grizley MiniMill working. I've taken some photos, will post them to my web site when I get a chance. For motors I used some NEMA 23 motors about 4" long that I found surplus- the only speck

My 2A kit uses those L298's they are a fine chip but they really need a heatsink over 1A. At 2A better make sure you have a good large heatsink and a fan. Dan

I believe that there a lot of list members out there that would like to get Cam running but find it a bit daunting. I would like to suggest an easier starting point in you quest. I bought the 5

If you have a regular size mill, otherwise use a drill press: Slide two plates under the bushing, one from each side and rest the plates on the wise or extra blocks. The encoder body now hangs under

Dan, I may well do that also in the future, I justed wanted to try everything out with the lowest cost to start with. I like the idea of getting away from the parallel port if

Art, Thanks for the update, as I said in my reply to Joe I plan to try the wedge method, I've been known to break a lot of stuff with screwdrivers :>) Terry wrote: the for the press out the It

Joe, I think you have the right idea, I'm going to try the same thing I believe. I'll probably make two and try to squeeze them together with a clamp or press and maybe keep from bending anything,

Do you have any homing switches hooked up? I have the homing working just fine, but what it does is travel in the direction you set until it hits a homing switch and then it pulls back and bumps into

Matt, this helped a lot. Now How do I find out what pin is ESTOP looking at and a few other simple things like HOME and AXIS switches. Are they in serial or parallel as they are all on one pin? Is

Terry, I just used to big screwdrivers and pryed the encoders off the shaftby pressing under the aluminum boss and used the screw heads for the plate as a fulcrum. They are a press fit. Now that I am