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Re: STEPS/revolution

Posted: Wed Sep 11, 2019 7:40 pm
by wagdamotta
Hi To all
I think that I did all the adjustments but I don't know If I did right, I have backlash and I have to fix it before start the use the machine correct?
I send the last report too, I like know what more I have to do before start use the machine.
Thank you
Wagner Damotta

Re: STEPS/revolution

Posted: Thu Sep 12, 2019 9:40 am
by cnckeith
1.) update to v4.18
2.) post info on the build. what make model drives? etc..etc..see this post. viewtopic.php?f=60&t=1043

and i'll be glad to help.

Re: STEPS/revolution

Posted: Thu Sep 12, 2019 4:54 pm
by martyscncgarage
wagdamotta wrote: Wed Sep 11, 2019 7:40 pm Hi To all
I think that I did all the adjustments but I don't know If I did right, I have backlash and I have to fix it before start the use the machine correct?
I send the last report too, I like know what more I have to do before start use the machine.
Thank you
Wagner Damotta
How much backlash do you have?
Yes, you need to correct it if excessive.
Do you have ballscrews or acme leadscrews?
Direct drive or are the servos connected to the screws with pulleys and timing belts?

If you watched my video and followed the manual on calibrating the axis, it should be accurate.
Cut a part and measure it...
----------------------------------------------------
Keith he is using DMM AC Servos
Its a benchtop milling machine.

I didn't catch if he is direct driving the screws or with pulleys.

Re: STEPS/revolution

Posted: Thu Sep 12, 2019 8:47 pm
by wagdamotta
Hi Marty and Keith

I did the update to v4.18 and I going to send a new report to you too, I need know how I find out how much backlash I have in my machine and how I correct it.
Marty I have AC servos DMM and my servos is connect direct to the screw, I watched lot videos from you and Keith and I learned a lot, thank you guys and all.
I need this machine for now only for engraving may name, address and serial numbers, later I want learn more, I never used a CNC before.
I thinking in buy a engraving software "millwrite" after I have the machine all set for use.
Thank you
Wagner Damotta

Re: STEPS/revolution

Posted: Thu Sep 12, 2019 9:53 pm
by martyscncgarage
Follow this tech bulleting to figure out how much back lash you have.
https://www.centroidcnc.com/dealersuppo ... ads/37.pdf

Re: STEPS/revolution

Posted: Fri Sep 13, 2019 8:57 pm
by wagdamotta
Hi Marty
I forgot one thing that my machine do every time I turn the power off, soon I turn the power off in the control box the X and Y move like something hold back, this is normal or I did something wrong? If you want I try make a video about the X and Y.
Tomorrow I going to try find out the backlash in the machine after I post here.
Thank you
Wagner Damotta

Re: STEPS/revolution

Posted: Fri Sep 13, 2019 9:02 pm
by martyscncgarage
wagdamotta wrote: Fri Sep 13, 2019 8:57 pm Hi Marty
I forgot one thing that my machine do every time I turn the power off, soon I turn the power off in the control box the X and Y move like something hold back, this is normal or I did something wrong? If you want I try make a video about the X and Y.
Tomorrow I going to try find out the backlash in the machine after I post here.
Thank you
Wagner Damotta
Not sure what you are referring to. A video would help.

Re: STEPS/revolution

Posted: Fri Sep 13, 2019 9:08 pm
by wagdamotta
I make a video tomorrow and after I post here
Thank you

Re: STEPS/revolution

Posted: Sat Sep 14, 2019 9:24 pm
by wagdamotta
Marty
I try post the video here and I don't know why not let me do If you can give a email I can send by email to you, sorry.
Thank you
Wagner Damotta

Re: STEPS/revolution

Posted: Sat Sep 14, 2019 9:38 pm
by martyscncgarage
wagdamotta wrote: Sat Sep 14, 2019 9:24 pm Marty
I try post the video here and I don't know why not let me do If you can give a email I can send by email to you, sorry.
Thank you
Wagner Damotta
You cant upload a video. Upload to YouTube