Just to add a few tidbits of info to this: 1) In all incandescent lamps(bulbs!) the filament is continually losing tungsten to evaporation. In a standard light...
This list is for the discussion of CNC and related topics including CAD, CAM, EDM, & DRO. The list focuses on the construction of home shop CNC machines along...
CAD_CAM_EDM_DRO@yahoo...
Oct 1, 2004 1:44 pm
75546
... accurate, ... No, you can get very accurate with Rhino3D. It's output can be imported directly into a 3D CAM program and used to build a cut program to...
... Yes. When a stepper motor loses a step under load, it cannot recover in any smooth manner. At best there will be a big jerk backwards and then forwards,...
Thanks Jon, I replaced the fuse and so far so good. Looks like I drew a little too much power with a deep cut and luckily nothing seems to have been damaged....
Hello, My Yahoo-account was recently set to 'bounce-status' (for no apparent reason). I 'debounced' my account and since then I get duplicate posts from this...
Hi all, I have seen a few of these e-mails and in this case, this gentleman is entered twice in the membership list, both with the exact same user and and...
I know you are trying to keep the thread on this short but I have recently had the problem of multiple emails after resetting the bounce status. The problem...
... Jon, can you clarify this for me. I am using your USC with steppers with encoders and EMC. If a stepper loses a step it does not recover? Or is what...
... If a stepper were to lose a step (or however much it takes to accumulate more axis error than the deadband value) at a low speed, it would recover so well...
Went to boeing surplus today and picked up a brand new 2" diameter 9 foot long precision ground ballscrew and ballnut for $125! I can just see that large...
Jan, If a Heidenhain encoder has a DIN connector it wasn't put on there by Heidenhain. I did a google search for Heidenhain connector and found out that they...
Rick: Congrats on the huge ball screw! I was planning on heading down there today to see if there are any servo motors laying around. Did you happen to notice...
... Check Digi-Key and Mouser. There are a lot of different style connectors for that arrangment. I have used the 4 pin circular style and they have the huge...
Hi all, A member complained about duplicate e-mails and we were successful in eleminating them by deleting the member and then sending an invatation to re-join...
... Ok, this is what I thought. With all the questions about Stepper vs Servo what might be interesting to try is taking the Pico Systems USC with the Gecko...
GREAT idea John. We await your results. ... interesting to ... and ... motor ... have a ... encoder ... the "efficiency" ... the ... work at ... in the ... ...
Hi all, I'm looking at 2 or 3" box tubing as a frame for a router. It seems the stuff comes in different wall thickess and that would offer different strenghts...
... Actually, the power requirements for a servo system are often LESS than for a stepper. DC servo motors are far more efficient than steppers. Idle current...
... Hello Dave, Try searching for beam deflection. Usually includes cases for rectangular and round tubes with loading on far end (like a diving board), in the...
Furthermore, if the fuse was a 'quick-blow' type, the inrush current to the x-former might've tripped it. RayHex ... AC input to the ... draw 10 A if ... near...
Hi, cant help with the math, but when i found some square tubing, had nice round corners, and 3/16 wall thick. made a cnc frame, was stiff. went to find more...
... Here's a slightly more interesting calculator with examples: <http://www.aps.anl.gov/asd/me/Calculators/ElasticBeam2.html> The examples are in metric, but...
... had nice ... went to ... expensive to ... stocked ... I can usually get 2-3 and 4 inch square stock like you mentioned, with rounded corners. Also in 1/8,...
