hi,
thanks for the hint. When i watch around the conversion-kits, they cost 449euro http://www.usovo.de/shop/CNC-Conversion-kits/Conversion-kit-for-Proxxon-MF70-into-MF70-CNC::274.html
and then there a sites which seemed to build new motoradapterplates, because they seemed only glued and not very good http://www.falko-pure.de/html/proxxon_cnc.html
So i think the mesa cards with 219euro, and then some around 30 euro per stepper motor i will get better stuff. Ok, the motoradapter plates, but this seemed also be ok to handle.
or do you know a cheaper good conversion kit for mf70 ?
thanks for your help
flo
Gesendet: Mittwoch, 11. April 2012 um 03:41 Uhr
Von: "Kent A. Reed" <[email protected]>
An: "EMC developers" <[email protected]>
Betreff: Re: [Emc-developers] some regards for proxxon mf70 ?
Von: "Kent A. Reed" <[email protected]>
An: "EMC developers" <[email protected]>
Betreff: Re: [Emc-developers] some regards for proxxon mf70 ?
On 4/10/2012 3:20 PM, inflo wrote:
> hi,
>
> i think i would go with the mesa setup http://www.retrofit-plus.at/store/7i76-plug-n-go#tab-box-product-info
>
> To the 7i76 card i can connect the power supply, or ?
>
> I got a 30V/2A lab-power-supply, which i can use. Can i use just one power-supply for all 3 motors ?
>
>
> Can i run stepper or servos with the mesa 7i76 ? i mean, am i limited to stepper or servo motors with the mesa cards?
>
>
> You think servos are better than stepper motors ?
> What would be a good torque for small aluminium parts ? Are there other things to look for ?
>
> <...>
>
> flo
>
>
Flo:
Have you tried using one of the Internet search engines like Google,
Yahoo, or Bing?
When I enter "proxxon mf70" into the Google search line I get pages of
hits related to your mill, including a number of stepper-motor
conversions. I didn't notice any servo-motor conversions off hand, but I
didn't look very hard. In any case, I'm definitely not the right guy to
talk about servo systems.
I don't know enough about the characteristics of the Proxxon mf70 mill
to recommend a motor size, but I should think you could get some good
ideas from the work described on these other sites turned up by Google.
If I were forced to guess, here's how I would start:
From the posted pictures, the mf70 looks relatively diminutive.
These days, the somewhat more massive Taig tabletop mill in CNC form
ships with NEMA frame size 23 stepper motors rated at 200 ozf-in (a bit
more than 1.4 newton-meter) holding torque [some think that is already
overkill. YMMV]. I'd be surprised if your mill requires motors this
powerful.
Sherline ships its mill in CNC form with NEMA frame size 23 stepper
motors rated at 135 ozf-in (0.95 newton-meter). I'd think this is good
enough for your mill, but you still need to do the homework.
It's even possible the holding-torque requirement for your mill is low
enough that the relatively smaller NEMA frame size 17 motors could be used.
Good hunting!
Regards,
Kent
PS - you may want to ask your questions on the emc-users list. The
readers of that list represent a wide spectrum of machines and their
usage. They are eager to help each other bring up new machines.
------------------------------------------------------------------------------
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> hi,
>
> i think i would go with the mesa setup http://www.retrofit-plus.at/store/7i76-plug-n-go#tab-box-product-info
>
> To the 7i76 card i can connect the power supply, or ?
>
> I got a 30V/2A lab-power-supply, which i can use. Can i use just one power-supply for all 3 motors ?
>
>
> Can i run stepper or servos with the mesa 7i76 ? i mean, am i limited to stepper or servo motors with the mesa cards?
>
>
> You think servos are better than stepper motors ?
> What would be a good torque for small aluminium parts ? Are there other things to look for ?
>
> <...>
>
> flo
>
>
Flo:
Have you tried using one of the Internet search engines like Google,
Yahoo, or Bing?
When I enter "proxxon mf70" into the Google search line I get pages of
hits related to your mill, including a number of stepper-motor
conversions. I didn't notice any servo-motor conversions off hand, but I
didn't look very hard. In any case, I'm definitely not the right guy to
talk about servo systems.
I don't know enough about the characteristics of the Proxxon mf70 mill
to recommend a motor size, but I should think you could get some good
ideas from the work described on these other sites turned up by Google.
If I were forced to guess, here's how I would start:
From the posted pictures, the mf70 looks relatively diminutive.
These days, the somewhat more massive Taig tabletop mill in CNC form
ships with NEMA frame size 23 stepper motors rated at 200 ozf-in (a bit
more than 1.4 newton-meter) holding torque [some think that is already
overkill. YMMV]. I'd be surprised if your mill requires motors this
powerful.
Sherline ships its mill in CNC form with NEMA frame size 23 stepper
motors rated at 135 ozf-in (0.95 newton-meter). I'd think this is good
enough for your mill, but you still need to do the homework.
It's even possible the holding-torque requirement for your mill is low
enough that the relatively smaller NEMA frame size 17 motors could be used.
Good hunting!
Regards,
Kent
PS - you may want to ask your questions on the emc-users list. The
readers of that list represent a wide spectrum of machines and their
usage. They are eager to help each other bring up new machines.
------------------------------------------------------------------------------
Better than sec? Nothing is better than sec when it comes to
monitoring Big Data applications. Try Boundary one-second
resolution app monitoring today. Free.
http://p.sf.net/sfu/Boundary-dev2dev
_______________________________________________
Emc-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-developers
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------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev
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