[kreutz]

I took a one week break (vacation). Will continue assembling boards on the weekend...

Kreutz.

[kreutz]

Power board Rev3.02SMD Finished

[Xerxes]

Looking good! I'm just wondering what is the function of AVR's on central board since there seems to be programmalbe chips on power boards as well.

[kreutz]

PC Interface board Kreutz-4 Rev. 3.02SMD

Just finished soldering, still in the oven (first photo). Same board, just finished soldering the few "through-hole" components on it (second one).

[skullworks]

That design looks sweet. Real clean.

[kreutz]

Looking good! I'm just wondering what is the function of AVR's on central board since there seems to be programmalbe chips on power boards as well.

Hello;

The four AVRs (Attiny2313-20SU) on the PC interface board are the real brain behind the micro-stepping modes, torque compensation vs rotational speed, and reference voltage morphing features.

The CPLDs (XC9536) on the power boards provide the average current control, decay control, torque loss monitoring, as well as the safety features.

Regards,

Kreutz.

[kreutz]

Size comparison vs last revision.

Last revision (Rev3.0M) left vs new revision (Rev3.02SMD) right.

[tenmetalman]

Kreutz,
Looking good, Is this your production version ? anyone doing beta testing in the field ?
tenmetalman

[kreutz]

Kreutz,
Looking good, Is this your production version ? anyone doing beta testing in the field ?
tenmetalman

Hello;

This is the limited first edition of the production version (25 sets). I will post the videos of the tests after finishing assembling all the boards, beta testers have been local engineers (friends and co-workers)...

Regards,

Kreutz.

[kreutz]

Update

K-4 sets' manufacturing goes as planned.

There will be a little more work to do because I lost the JTag configuration files for the CPLDs, and HDL design files, after upgrading my FPGA design software. It will take me a few days to re-do them, I still have the printed version of the files to help during the rebuilding process (backups got corrupted).

Kreutz.

[kreutz]

Update

K-4 sets' manufacturing goes as planned.

There will be a little more work to do because I lost the JTag configuration files for the CPLDs, and HDL design files, after upgrading my FPGA design software. It will take me a few days to re-do them, I still have the printed version of the files to help during the rebuilding process (backups got corrupted).

Kreutz.

Re-created CPLD files, simulations are OK.

[kreutz]

Re-created CPLD files, simulations are OK.

I had further issues with Xilinx's ISE 10.1 SP1, and it took me a few more days and some help to get it working as it should, without having to re-create every project when doing changes to the files. Never had those problems with previous versions. Manual assembly continues its slow pace...

Waiting for a "Charitable Soul" to donate a small automatic "pick and place" machine....

Kreutz.

[Jay C]

Here's a homebrew one from the pros at HighTech Systems:

[ame="http://www.youtube.com/watch?v=bbBr9cbMqq4"]YouTube - Pick and Place with a Taig CNC mill[/ame]

[Jojje Bergan]

10 of that card takes all week or?

I can do it faster, by hand.

[kreutz]

Here's a homebrew one from the pros at HighTech Systems.....

I have been also thinking about something like that......... Even if it is slow, the good part is that it doesn't get tired...

Kreutz.

[Jay C]

They comment they can go faster if they get a better vacuum.

[Xerxes]

Build that as lightweight gantry style machine with servos and you have pretty usable pick'n'place machine

[harryn]

I have been also thinking about something like that......... Even if it is slow, the good part is that it doesn't get tired...

Kreutz.

In case you are serious:

http://www.dovebid.com/auctions/Auct...uctionID=11534

[kreutz]

In case you are serious:

http://www.dovebid.com/auctions/Auct...uctionID=11534

Thank you. I am serious, but have no space available for those big machines...

[Mongkol]

Hi Kreutz,
After reading.I would like to know this board can use with hybrid stepper motor at torque 1200 Oz-in or not.If It can,it's very interesting.
What maximum of torque can this board control?

Mongkol