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Woodpecker:

voila :)

Here is a quick trace of Georgia Bulldogs logo.Needs some cleanup...

I did buy motors from wantai,good motors for the price.
Shipping was little bit too high and it took 40 days to recieve them.
On the other hand I also bought motors from Keling,also good...

<iframe width="480" height="360" src="http://www.youtube.com/embed/q26o4QO_VXM" frameborder="0" allowfullscreen></iframe>

check this out:

<iframe width="480" height="360" src="http://www.youtube.com/embed/q_-uHyJNVxs" frameborder="0" allowfullscreen></iframe>

about dampers:
http://www.cnczone.com/forums/stepper_motors_drives/32284-my_take_stepper_damper.html

Basicly something like a flywheel,simple to make but didnt help much for me...

about...

Any updates?

I would trust geckos formula for induktance,so 7mH=84.6640419540669 V max.

Support

"At this point it is important to introduce the concept of overdrive ration. This is the ration between the power supply voltage and the motor’s rated voltage. An empirically derived...

Keling is ok,you just have to find right motors for your needs.
You need some 2.5mH or close motors to pair with your 48V supply and drivers

This keling motor is 7.0 mH so you need 80V to get the most out of these motors....

Not realy :) we are not in EU so still have to pay import taxes....

But that has some advantages,while building my cnc I learned alot about casting metals :) :) and scrap yard hunting ;)

yes,49 a piece + shipping 30usd + import customs somewere around 30% witch makes it around 105usd a piece....

Making a machine is much cheaper for you then for us not living in the USA.
I just...

Honda FireBlade logo vector:
Results for: fireblade - Logo Vector Download Free (Brand Logos) (AI, EPS, CDR, PDF, GIF) | seeklogo.com

Well just ordered 3 pieces of 570oz-in steppers from keling e-bay page.:banana:
Now have to wait and see if these steppers were a good choice.

stepper with 22mH=max voltage would be 150v....
Heat:
80 Fahrenheit=26.6celzius,preety cold for a stepper.Usualy steppers run much hoter than that,somewere near 80 celzius(176Fahrenheit)
On my...

been there done that :) :)
Building cnc out of nothing,printer steper motors,diy drivers.
Alot of people dont understand that this way is much more harder then with bought NSK linear rails and...

Planing to buy some steppers for keling-s e-bay page and need some advice.
My drivers are similar to keling-s KL-8060(70V and 6A).
here are the candidates:
KL23H2100-50-4B 570 oz/in (50V and 5A...

Here is finished work.
Thanks again switcher ;)
https://lh3.googleusercontent.com/_tIulvowGIcc/Tc5X9fTDwWI/AAAAAAAAAqM/KaUWM-JXAI4/s288/DSC02897.JPGFrom cnc"

Recently had some serious calibration problems,could not calibrate my X axis to move with precision.When calibrated on short distances it made a mess on longer distances and vice versa...
After a...

How would you make a mold for making AL stepper couplings(lovejoy )?
Instead of lost foam or wax casting I am looking for a permanent mould,and could this mould be made out of thick aluminum and...

Well,I have some strange problem with my diy desktop cnc.
Had some problems with calibrating Y axis,just could not get it right.On X and z axis did not had any problems,just my Y axis...
After a...

Not adapted for plasma but it is a start...
Hope it helps.

BINGO !!
That is it,on one part of the table(most used) it is impossible to calibrate it correctly,but on the other side it is almost perfect.

It is time to put some new screws on the beast...

Well,tried today again ti fix this problem,but no luck...
If it works fine on long distances then small distances are problem and vice versa..

Is it possible that threaded rods are not linear...

PMinMO.com

Well,things just got worst...
When calibrated on 30mm distance,it gives me 146mm at 150 distance.
when calibrated on 150mm distance it gives 31mm on 30mm distance.
I used mach3 calibration...

Mach3...

I am having some strange problems with my second build,I cant calibrate all 3 axis correctly.
I can make it to go exatly 30mm,making circles perfect,repeatability tests all ok but when I make for...