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Messages - Marcin81

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11
General Mach Discussion / Re: Slow motion and harsh noise
« on: May 23, 2011, 07:16:42 PM »
I changed the step to active low and the jog become very jerky and slow. I lower the velocity and acceleration but didn't helped much. Sherline mode makes router slower but no improvement on running g-code.

12
General Mach Discussion / Re: Slow motion and harsh noise
« on: May 23, 2011, 06:28:55 PM »
Doesn't help. Makes it even worst when I jog. Makes the motors stalling.

13
General Mach Discussion / Re: Slow motion and harsh noise
« on: May 23, 2011, 06:01:31 PM »
I'm sorry, circle pocket works fine, but the Roadrunner is very slow and also a lot of noise. Another thing is that when I run the Roadrunner the router almost doesn't move but the motion on the screen move fast.

14
General Mach Discussion / Re: Slow motion and harsh noise
« on: May 23, 2011, 05:45:39 PM »
I did that already, and works great. I don't understand this  ???

15
General Mach Discussion / Re: Slow motion and harsh noise
« on: May 23, 2011, 05:21:56 PM »
Hello Hood,

Thank you very much for replay. Here are the files.

16
General Mach Discussion / Slow motion and harsh noise
« on: May 23, 2011, 04:35:51 PM »
Hi to all,
I need some help with setting up my mach3 configuration. I read almost every post that I could find on the internet but still can figure it out what's going on. The problem is that when I jog the machine it moves smooth and fast but when I load g code for profiling the motion slows down and motors makes a lot of harsh noise. I tried different motor tuning configuration and also many other settings but no lack at all. Some specifications of my setup:

PC:
Processor: Pentium 4  - 3.2Ghz
Ram memory: 2 Gb DDR2

Cnc
Controller:  Tb6560 board
X axis: Nema 34 step motor, 8 micro steps, 16mm screw, pitch 10 mm
Y axis: Nema 23 step motor, 8 micro steps, 16mm screw, pitch 10 mm
Z axis: Nema 23 step motor, 8 micro steps, 16mm screw, pitch 5 mm

Here is the link to short video where you can see and hear what's going on with the machine when jog and when start working on the profile cut.
http://www.youtube.com/watch?v=uwzfqMPyA2Y
I also made screen shots of my mach3 configuration.

Thanks

17
Hi to All,

This is probably another common problem for cnc but I tried to figure this out for the last few days without any positive results. I have NEMA23 on Y and Z axis and NEMA34 for X axis and the problem is that the step motors are making growling noise when the router is moving around the curve but not always. This may be motor tuning problem but I could not get this fixed by changing parameters for my step motors in motor tuning. I have calculated steps per which are 160 for X and Y axis and 320 for Z axis. The router move smooth when I jog but when is doing the pocket is very noisy. I made short video to show exactly what the problem is. Here is the link: http://www.youtube.com/watch?v=56dP7kqcfRg.

Thank you very much for any help.

18
General Mach Discussion / Re: Step motors problem - no movement
« on: March 28, 2011, 01:28:46 PM »
Also here is the link to ebuy page where I bought PCI parallel port card that should operate on 5V and 3.3V PCI slot. The card is very inexpensive so is worth to give a try.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=170620917866&ssPageName=STRK:MEWNX:IT

Marcin

19
General Mach Discussion / Re: Step motors problem - no movement
« on: March 28, 2011, 01:21:23 PM »
Hello,

I had parallel port already on my motherboard which has 3.3V output. I didn't install PCI parallel port yet on my PC but I found some information that may help you. There is few different PCI slots which are operating on different voltage. Look on the picture in the attachment and see what PCI slots you have on your motherboard and you will know what card will work on 5V PCI slot and that I think will give you 5V output on the PCI parallel port. I hope that helps.

Thanks,
Marcin

20
General Mach Discussion / Re: Step motors problem - no movement
« on: March 28, 2011, 06:50:03 AM »
Hello,

Thank you for the post. I found the problem which is parallel port on my PC. As Tweakie said this controller needs to be plugged in into 5V output PP and my has only 3.3V output but I have tried on other PC and everything woks perfect.

Marcin

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