NEMA 17 Triple Stack Locally?

[Ken Snyder]

Does anyone know where I can get a NEMA 17 triple stack locally?  I tried Weird Stuff and Halted.

Thanks,

Ken

[wolfmanjm]

I *think* these are triple stack...

http://www.alltronics.com/cgi-bin/item/17HS24/55/OSM-NEMA17-Single-Shaft-1.2A-92oz-in-Stepper-Motor

If you go there and get one can you pick one up for me :)

[Elliot]

From the spec sheet, they have 96oz/in vs the 76oz/in of the kysans and the 68oz/in on the 0.9deg steppers that I bought.

What is this for, ken?

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[Elliot]

Err..  92oz/in

[Ken Snyder]

Yep, that's a triple stack, only $20 too.  Kysan has one about the same for $25.

Elliot, I drilled out the 0.35 hotend to 0.6 and the extruder with the 0.9 degree stepper is still misstepping.  I'll try the triple stack with it, but in the end I think I'm going to use the extruder with 1.75mm filament.  I don't like the curl in the tubing for the 3mm bowden too.  With a large printer, it could really be a pain to deal with.  I'm generally not a fan of 1.75mm filament, but in this case I think it is the way to go.

Did you make any modifications to your extruder for use with 1.75 or is it good to go?

On Tue, Mar 10, 2015 at 11:19 PM, wolfmanjm <wolf...@gmail.com> wrote:

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[Ken Snyder]

One more thing, where's a good place to get bowden tubing for 1.75mm filament?  I want to be able to specify the length I want. 

Ken

[Elliot]

Ken,

I think that 1.75 is probably the way to go, too.  Let me know if you'd like me to buy the 0.9deg motor back, and/or buy the e3d hotend from you.

I'll fiddle with the parameters of the extruder and try get it for you tomorrow night.

Elliot

[Bill Seiler]

McMaster-Carr

[Ken Snyder]

Elliot,

Looks like I don't need the 0.9deg motor, so I can bring it tonight if you want to buy it back.  I know you're making more printers.  I'll order a E3D 1.75mm extruder now.  You can buy my 3mm one.  Do you want me to bring it to the meeting tonight?

[matthew bennett]

Ken,

Is your extruder a direct pinch wheel drive or a geared extruder?

I've been playing with overextruding lately with a standard sized nozzle and getting very interesting results.

[Ken Snyder]

It's a direct pinch with a MK8 hobbed pulley.  I adapted Elliot's direct drive extruder to a Bowden.

[Ken Snyder]

Bill,

Yes, I've been looking at McMaster, but what size and material?  They have 2mm ID.  Is that large enough?

[Bill Seiler]

Yes. I used the 2mm id tubing for 1.75 filament.

[Bryan Day]

Its not the cheapest motor but I am running this on my setup and it has been amazing. Smooth and super strong due to the gearing. Never misses a step. I bought mine from this same seller here: http://www.ebay.com/itm/Kysan-5-18-1-Planetary-Geared-Stepper-Motor-3D-Printer-RepRap-Kossel-Nema17-/181435052637?hash=item2a3e5f325d

[jorwex]

You could try Power Mate in Santa Clara. That's where Sam from Kysan referred me when he was out of stock a few months ago. They let me do local pickup:

Here's the link I used at the time for the normal NEMA17 Kysan: http://www.pmtusa.com/product.sc?productId=9&categoryId=5

Jordan

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Jordan W