Anybody wants a stepper motor analyzer?

[beano]

@zapta: When do you need the gift card, now, or just before you ship? It doesn’t matter to me, let me know which you prefer, cheers.

Beano

[bot]

@zapta @beano I'm wondering the same. I am waiting to know the final shipping costs to Canada so I can add a bit extra on top to show my appreciation.

[zapta]

@bot, @beano I prefer to get the payment around the time I ship, just in case something will go wrong and I will not be able to ship.

As for amounts, now I that have more experience with the shipping rates, so let's round the totals (including shipping) for future payments:

US: $40

Other countries: $45

[CCS86]

@zapta

Arrived already, thanks again man!

I gave it a quick check with the printer on it's side and it works beautifully. I need another cable to use it properly though.

Maybe you guys can help me out. My familiarity with the various connector types is low.

I had some spare stepper cables like this, so I chopped off the white end and terminated with the connectors zapta sent (on the right). Those plug right into my Duet board, and the black connector into the analyzer.

But, I'm left with a very short length of loose cable after unplugging the motor that I need to get out from under the machine. Basically a male version of the connector on the right. Anything easier that in missing?

[zapta]

@ccs86, the connector on the right is KF2510 4 pins, it's a clone of a Molex connector, KK or something like that.

You can get KF2510 connector on Aliexpress, Amazon and many other places, or you can get the Molex ones from Digikey and similar.

https://www.amazon.com/GeeBat-Connector-Headers-Terminals-Housing/dp/B01M69TKAM

https://www.aliexpress.com/item/32963887703.html

https://duet3d.dozuki.com/Wiki/Connector_and_spare_part_numbers

I solder the wires to the male side and use heat shrink to cover the exposed solder points.

[beano]

@zapta All Good, thanx for that. Will wait for your message.

[CCS86]

@zapta said in Anybody wants a stepper motor analyzer?:

@ccs86, the connector on the right is KF2510 4 pins, it's a clone of a Molex connector, KK or something like that.

You can get KF2510 connector on Aliexpress, Amazon and many other places, or you can get the Molex ones from Digikey and similar.

https://www.amazon.com/GeeBat-Connector-Headers-Terminals-Housing/dp/B01M69TKAM

https://www.aliexpress.com/item/32963887703.html

https://duet3d.dozuki.com/Wiki/Connector_and_spare_part_numbers

I solder the wires to the male side and use heat shrink to cover the exposed solder points.

Perfect, that is exactly what I had in mind. Thanks for the info man!

[jay_s_uk]

thanks @zapta

[CCS86]

Super cool. Thanks @zapta !

https://photos.app.goo.gl/zKr1jDrcfQgRjhbR9

[zapta]

@ccs86 said in Anybody wants a stepper motor analyzer?:

https://photos.app.goo.gl/zKr1jDrcfQgRjhbR9

The small sine wave like pattern on the step chart indicates the circles, and the magnitude represents the radius.

[Blacksheep99]

@zapta cant believe you've not linked to this vid on YT.

https://www.youtube.com/watch?v=4iII25DGIdA

I'm interested from a learning perspective but currently have no use for it. I'd actually like to know what people will use this for? To test drivers and steppers I assume but to what extent?

[agmeadows]

If you are still taking orders, I would be interested in one. I was looking at building my own but don't have the necessary tools to make it easy.

[appjaws]

@zapta If it's not too late, I would like one of your stepper motor analysers when you next do a run .

[zapta]

The last batch of 9 units is ready to be shipped to the people listed below. If there is no X near your name please send me your name and shipping address via chat.

Once it will be shipped, I will let you know and ask you to purchase and send me a gift card from www.amazon.com (not from local amazon website), $40 if you are in the US and $45 international.

@lbi  X
@Sindarius
@skrotz 
@GeorgeM X
@1ri
@Egon.net
@coseng
@DeadNewbie X
@agmeadows

@appjaws, the last batch is already allocated so you are at the top of the waiting list, in case somebody from the list above will not provide their shipping address.

[tenaja]

I would like one from your next batch--do you have an ETA?

[1ri]

@zapta

hi, i sent my address and t’he amazon code via chat, i think.
I don't know if you received it or not, I don't get along with chats

Via GoogleTranslator

[zapta]

@1ri, got your message. Replied via chat. Sorry for my late response.

[zapta]

@agmeadows, please send me your shipping name and address via chat.

@tenaja, I am sorry but all the planed units are claimed. I hope that somebody will pick the idea and will make them available in larger quantities (the design is in public domain with no strings attached whatsoever).

[Th0mpy]

I am planning to make a few but I've been delayed by a few weeks. I may decide to just place a big order once I'm done with the first, I'll post here when I do. If you're interested send me a message and I'll direct my communication to those people interested.

[zapta]

@th0mpy said in Anybody wants a stepper motor analyzer?:

I am planning to make a few

Hi @Th0mpy, that's a great initiative. Thanks. Please remember that the license is public domain (CC0) and allows commercial use, which make the availability of analyzers more sustainable. Can also be a great kickstarter.

I suggest to use files from released versions (firmware, electronic, and mechanical) rather than latest, it's safe this way. https://github.com/zapta/simple_stepper_motor_analyzer/releases

Also, I used JLCP to provide and solder all the SMD components in their inventory, which includes the heavy lifting of soldering the two FPC 0.5mm pitch connectors. Just had to solder myself the current sensors, stepper connector (remember to cut the pins using the 3D printed jig) and the Pico.

The mechanical design and TFT are based on Dustin's Watts ESP32 Touchdown (but is ~2mm longer). https://www.youtube.com/channel/UCYPmdetwhvFeRkgXhIWq_eg . He uses PCBWay to assembled his board (potentially they can solder all of the components) and had a few vidoes about it. He is also very approachable on his Discord forum so you can ask him for manufacturing advise. https://youtu.be/YHzU_GXCIkQ

https://www.tindie.com/products/dustinwattsnl/esp32-touchdown/

Please let me know if you have any question, here or on github, and if you want I can add to my github repository a link to your store.

BTW, the last unit from my 30 units batch went out today and I don't plan to make another batch.