Messages

1

General Mach Discussion / Re: Cannot get to 200 IPM

« on: January 06, 2014, 01:11:13 PM »

Machine is DIY. Axis is direct drive. coupled with a delrin coupler. Lead screw is acme 1/2-10 5 start with delrin anti-backlash nut . Ways are 15 mm Hiwin rail.   

2

General Mach Discussion / Re: Cannot get to 200 IPM

« on: January 04, 2014, 08:01:54 PM »

link to motor 6th one down 425 oz http://www.kelinginc.net/NEMA23Motor.html
link to power supply 36v/9.7a  http://www.kelinginc.net/SwitchingPowerSupply.html

I can get 100 ipm on all axis, 3d machining with no problems. Fastest I can get on the x before stalling 135.

3

General Mach Discussion / Cannot get to 200 IPM

« on: January 04, 2014, 06:31:13 PM »

I have 2 motors on my X axis. I cannot get that axis to 200 IPM. I can get my Y axis with only one motor up to 200 IPM. Motors are kl-223h286-20-8b Drivers Kl 4030 power supply kl-350-36. all by keiling. I also have a smooth stepper usb type running version v17f and mach3 version 3.043.066. Do I need more volts to run the two to 200. Meaning buy another power supply.
Scott
I attached xml file

4

General Mach Discussion / Re: steps per or backlash?

« on: November 27, 2011, 01:29:12 PM »

yes I purposely made it go slow and shallow so there would be as little tool deflection as possible. The machine uses 5 start 10tpi lead screw with plastic nuts. I have cut all over the machine and it's pretty consistent. I will detune the motors but I thought 100 ipm and 40 accel was low. I will check backlash also. thanks for the suggestions.

Scott

5

General Mach Discussion / Re: steps per or backlash?

« on: November 26, 2011, 06:05:16 PM »

here is the program

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General Mach Discussion / steps per or backlash?

« on: November 26, 2011, 06:03:05 PM »

I cut a 3" square and inside that square I cut a 1" circle. The x dimension on the square is 3.003 The y dimension on the square is 3.02. The x dimension on the circle is .985. The y dimension on the circle is .970.  So if I push up the steps per the circle will get bigger but so will the square. I have tried backlash but it didn't seem to help in the circle. I am using g41 in the program. But until I get Y matching X it won't help. I was hoping to get to + - .005.  I have tightened everything on the machine I can think of ( this is a router made from wood and alum. from build your cnc) and played with the settings in smooth stepper.   + - .010 I could accept or is this the best I am going to get.

Thanks for the replies
Scott

7

G-Code, CAD, and CAM discussions / G28 goes in reverse before going home

« on: July 18, 2010, 06:19:49 PM »

Hi, this weekend I have been trying to make4 my machine more accurate ( goofin with the steps per) but I noticed running my program that when it did the G28 X0 Y0 line it would go in the opposite direction a touch before going the right way and to home any ideas as to why or what setting I can change to make it stop going in reverse?
Scott  

8

General Mach Discussion / Re: Cannot Figure out

« on: July 18, 2010, 06:11:12 PM »

I got it. i can do .01 increments or whatever. I tried adding a joystick and when I got the joystick up and running I had the increments.

9

General Mach Discussion / Re: Cannot Figure out

« on: July 16, 2010, 06:24:41 PM »

Thanks I was getting really confused between the incremental and absolute in the post processor and programming and the other thing but I do get confused with two things, a little dyslexia I think. But on to another thing I can't figure out i can move my machine around using the keyboard in the program run screen. I can move it around in mpg when I hit the tab button I can even move it around using the mpg axis buttons in the positive and negative, but when I change jog mode to step I can no longer move my machine. I can't even move it when I tab out of mpg. I have to move jog mode back to continuous and then tab out and hit reset then I can move it again. I need to move in .01 increments so i can touch off my tool.
thanks for your help
Scott

10

General Mach Discussion / Cannot Figure out

« on: July 13, 2010, 08:27:10 PM »

Hi I have been working on the software part of my build and I am stuck. I load one of the sample programs from the mach3/gcode folder and watch what it does in the toolpath window but the tool path (in green dashes) does nothing but circles the shape is there but and it will turn from purple to white as yop single block thru it but the toolpath just does circles and does not follow the part / shape. I went thru the tutorials and then skimmed them again but I can't find anything on a setting  I missed. Also I tried programing a simple square and it will only draw the first 2 legs. here is the code
G00 G17 G20 G40 G49 G50 G64 G80 G91;
G54 ;
G28 X0 Y0 Z0;
G00 X2.0 Y2.0;
G43 H1 Z.1;
G01 Z-.1 F25.0;
G01 X4.0 Y0 F50.0;
Y4.0 ;
X0 Y4.0;
 Y0;
G28 X0 Y0;
M30; 
What am I missing?
Thanks for your help