Ediestel's new PCBs.
Ediestel's new PCBs.
About the future Mardus-Kreutz II Unipolar Micro-stepper stand alone drives (M-K II).
- Will be stand alone on only one board.
- Will be based on a micro-controller and a CPLD (preferable on socket)
- Will include ENABLE input and Fault Output.
- Will still be rated 80V 8 Amps drive with modes: Full, half, 1/4, 1/8, 1/16, 1/5 and 1/10.
- The PCB will be smaller in size.
- Will be a DIY board with SMD components (size 0805 for easier handling).
- Will also be optionally sold completely assembled.
The micro-controller and CPLD will be sold already programmed and really cheap, including the bare PCBs, target price to be determined yet.
Hi all,
14 Mardus Kreutz PCB - industrial quality - are available at cost. I ordered 25 and this is what is left at this point.
A set of 3 PCB will be $ 50 including flat rate shipping. Payment with paypal.
ed
http://cnclayman.blogspot.com
http://oc1design.blogspot.com
FYI
The previously posted schematics have an error. Here are the corrected schematics.
Here is the video. Enjoy!!
Kreutz.
[ame="http://www.youtube.com/watch?v=U0BDdWLkL8M"]YouTube - Kreutz-4 PC Interface with Mardus-Kreutz Unipolar Micro-Stepper Boards[/ame]
hello Kreutz !
Great work this video show will all the system and the performance.
what about if needed dual motors to x axis for heavy machine ?
its need to dual motor driver ?
have you dual motors Drivers ?
thanks
aladin
Hello Aladin;
The machine on the video is already a heavy machine, it is able to drive the y-z bridge with a 165 lb person standing on top, the x axis linear rails are mounted on independent granite blocks held by the frame which is made with heavy gauge 3 steel (including Y-Z bridge).
For heavier machines the 4th axis of the K-4 interface could be enslaved to any of the other axes in Mach3, if it is not being used.
I posted a multi dual axis interface schematics a while back, for those who have really heavy machines.
Regards,
Kreutz.
SLA or any one have low vol, low current. and not flexible to design
No problem, we understand each other pretty well (English is not my mother's language either). There is a thread about them in the CNCzone, they are not only inflexible, but also have some limitations. Some of the cheap solutions around are based on those chips. My idea was to develop a better quality solution with customization and upgrading in mind.
Best regards,
Kreutz.
To kreutz
I was saw MK unipolar microstep and K4 board, It is great for hobby use.
Best Regards
hi.
The following image is a connection of two aspect Yuniporrasteppingmortarmaicrostepping to
LED.
It tries to build the fixed current circuit into following.
It was named Raundorimittoscear.
[ame="http://jp.youtube.com/watch?v=je0JzjjlIvM"]YouTube - P1010011[/ame]
I found some info about mid band Resonance
Anti-Resonance: All stepper motor systems are subject to mid-frequency resonance that is the result of motor generated back-EMF. Drivers equipped with the Anti-Resonance feature will modify the motors current waveforms to compensate for the back-EMF, resulting in a smoother operation at resonant speeds.
Back EMF: The voltage produced across a winding due to its interaction with the rotating magnetic field generated by the motion of the rotor. Back EMF is proportional to the velocity of the rotor and in opposition to the voltage applied to the winding by the motor drive.
Srouce
http://www.amci.com/tutorials/tutori...sary-terms.asp
I hope it help you make Anti Resonance Mid band
Best Regards
Thank you, but that definition is a little limited, midband resonances are not always triggered by the BEFM, there are many mechanical factors involved too. Although general, the solution is applicable, and works. But its implementation with minimum cost is the key.
Thanks Kreutz info. High quality stepper driver need 32bit MCU, or DSP . Use FOC like PMSM control
I have alpha step of vexta ( close loop control) it run very smooth. It use HD643704 ( Hitachi MCU 32bit)