Messages

51

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 24, 2011, 11:41:23 AM »

Still unsure if my current motors are good enough. I have the 286's currently mounted but I also own from a previous build the 276's.

Have you looked at and understood the torque curves I posted yet? BTW- Hint - there's info missing - what don't they tell you?

Ian

I am not 100% sure what those charts mean.

52

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 24, 2011, 11:18:40 AM »

I guess the advice about designing with purpose and not just choosing kit at random just went out of the window then... shame.

Ian

I must of missed something. I posted what I am using the machine for - And I want to upgrade to a 4th axis for a rotary.

53

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 24, 2011, 10:45:23 AM »

Thanks!

What I am going to start saving towards -
Gecko 540 and cables
Power Supply -- Assuming 36v and long as it is at least 10 amps???
And eventually change everything over to 5 start screws instead of the single start I am using now.

Still unsure if my current motors are good enough. I have the 286's currently mounted but I also own from a previous build the 276's.

54

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 08:37:13 PM »

Thanks

55

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 07:59:07 PM »

I read a lot of books - but still need help understanding this stuff. Thanks

It's ok to have more amps because the system will only draw what it needs, right?
Do you have a link to power supply you have? I have another coming because I needed the 12v power supply for another project. I have a 36v 10 amps coming and another 12v power supply but not the radio shack model coming.

56

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 06:31:23 PM »

Thanks!

What motors and power supply should I get to go with the Gecko 540? And should I look at Nema 34's instead of the 23's or are the 23's fine?

Thanks!

57

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 06:03:21 PM »

Another example of what type of cutting I am doing -

http://celticmachining.blogspot.com/2011/01/cnc-inside-sign-finished.html

58

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 04:56:50 PM »

I want to add a 4th axis so that is why I figured the Gecko 540 was the better choice for me. If there is something else I should consider, please let me know.

with that said what should be the minimum power supply requirements should I be looking into?

Everyone has posted me upgrading my motors to something other than keling. What should I be saving for and should I go with Nema 34's instead of 23's?

Thanks

59

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 04:49:34 PM »

That's ok though. that's why i am posting - I am ok with replacing those items it's just getting and understand what I need so I do it one time and not multiple.

For when I do upgrade -
How would I hook the motors to be single coil?

I am making notes of all of these things.

60

General Mach Discussion / Re: incresing speed on stepper motors

« on: January 23, 2011, 04:31:19 PM »

Thanks to everyone for all the help!

With everything I learned so far and still have a lot to learn to go. I made some changes to my settings and did improve the travel speed of the x and y axis. I am now cutting another sign and this time the cutting time has been improved and no burn marks in the wood. With the cutter moving as slow as it was before I kept getting burn marks.

http://www.youtube.com/watch?v=FyqJJrzqzFI

THANKS!!!!!!

Now I need to figure out what I need in better quality electronics and motors and get to that next level of happiness with my machine.