Thanks Carl! Also what stepper motor do you recommend for direct drive?

 

FWIW - I run Kysan steppers almost everywhere except for my Titan extruder, similar in setup to Carl's Direct Drive.
Movement Steppers - Kysan - Kysan 1124090 NEMA17 Stepper Motor
Direct / Titan extruder Steppers - Wantai - NEMA17 40N-cm - Compact But Powerful Extruder Stepper Motor - Wantai

 

Sorry Chris, I missed your post earlier somehow. I am using the E3Dv6 extruder...
I think it was one of your post where I saw you posted this link for the stepper motor:
Amazon.com : Short Body Nema 17 Bipolar Step Motor 3.5V 1A 18.4oz.in/13Ncm DIY CNC : Camera & Photo
same motor: Nema 17 Bipolar Step Motor 3.5V 1A 13Ncm(18.4oz.in) 17HS08-1004S - US$ 6.70

Would this motor be good enough?

Here are a couple more I was looking at:
Amazon.com: Stepping Motor Nema 17 Stepping Motor 26Ncm(36.8oz.in) 12V 0.4A 3D Printer CNC: Industrial & Scientific

Amazon.com: SainSmart NEMA 17 Stepper Motor 1.5A-2.5A for 3D Printer Reprap Makerbot Prusa CNC Router: Industrial & Scientific

Please let me know which would work best? @Carl Feniak : what torque rating do you recommend? What weight range?
For my Bowden (along with other 4 motors) I am using the nema17 from automationtechnologies.com... Link here:
http://www.automationtechnologiesin...-stepper-motor-kl17h247-150-4a-for-3d-printer

You are a genius Carl! I love this 3d printer and kudos to you for an amazing design!! not to mention the kind of support you provide here along with other guys... I have been a silent member on this thread/forum and try to keep up with most of the posts.

 

Any recommendation for extruder motor selection from the links above?

 

A friend & I both use this Short Body Nema 17 Bipolar Step Motor 3.5V 1A 18.4oz.in/13Ncm with the E3D Titan Extruder on Prusa i3v printers & it works great.
Amazon.com : Short Body Nema 17 Bipolar Step Motor 3.5V 1A 18.4oz.in/13Ncm DIY CNC : Camera & Photo

I weighed the motor by itself at 4.6oz.

 

Great! Thanks for confirming that...
If it works for Titan, I cant imagine it being a problem with E3Dv6...
Will give it a try...

Thanks!

 

Here is a Tom's youtube video showing it with that motor.

 

Now that I look at the video, I was wrong in saying that I have a E3d extruder... In fact, I have E3dv6 hotend... I only have the bowden system as per the design... That said, this small body motor would still work directly without any gear system? Its most likely going to show up this week....

 

The Titan has a 3:1 gearing system built-in. This is why you can get away with the smaller pancake motor. I have two Titans with these motors and they work great.

 

IMHO - If you are trying to do a direct drive using the small 18 netwon meter steppers, I don't believe it will work reliably. Those small torque steppers work best with a gear reduction like the Titan has at 3:1. For a direct drive stepper, I would go with at least a typically full size stepper, in the 40+ newton meter range.

I've used the pancake steppers on my Titan before and can confirm it worked. I did switch to the stepper E3D sells for the Titan as I need to reliably push filament at higher feed rates.

 

How does Titan do when printing with flexible filaments? I hear Flexion extruder is great with all types of filaments... Wonder if you guys have tried it with flexible filaments?

 

Worked great when I got the hot end settings tuned in for NinjaFlex.

 

Ditto for me. NinjaFlex and TPU works great with the Titan.

 

Thanks for the input guys!! What kind of print speeds are you using when printing with NinjaFlex or TPU?

 

If memory serves me, 30mm/s is about the limit for flexible filaments. But it's been a while since I've done any.

Here's a video of my C-Bot printing TPU.

 

Hey Carl. I'm a Camosun College student taking an Engineering technician course. The final project for Mechanical is to take plans (drawings) of something and put it into Solid-works. produce a BOM parts and some assemblies from them. I was wondering if you have a complete set of drawings for this wonderful printer that I might use?
Thanks,
Andrew.
Camosun College
Victoria BC Canada.

 

hey andrew
I don't think Carl monitors this thread much any more. He started a new one on Google+.
But to answer your question. go to the files section here and you will find all the files - mostly just print files, for this build. Also bom and a few others.
There are also modified files scattered throughout this thread. I don't know if the files are also on Google+
The triple bot and dbot are variations of this and they also have files.

 

Thanks. I have 7 weeks to get it together. =-) wish me luck.

 

7 weeks that is ambitious for a first build. I was active in this thread and have build 3 coreXY machines so feel free to PM me if you have any questions.

 

Thankfully I don't need to produce it, I just need to get it from drawing to parts in Solidworks and then show an assembly. It's not like I have a life or anything. =-)

Granted, my wife appears to be interested in setting one up on my office.

 

Not quite but I have not given up yet. Do you have a better build that you are working on that I may tap into? See, the final project for this semester is to take a set of drawings and create the associated parts in solidworks and then assemble them in solidworks. it's worth 80% of my mark. So far I can't say I am impressed at how they've demonstrated the use of the program. I've mostly used YouTube videos to teach myself.

 

OK, I'll have to find a place where I can get Autodesk 123D first. You figure a company would make their program cross compatible but OH NO! that would be friken logical eh? Sheesh. I'll see what I can do when I get back home from school. If I have to spend too much time to get drawings, I may have to move onto something else I don't want to do. :-| Instructor wants me to switch to some WW2 airplane part. Screw that. I want to do the future, not live in the past.

 

I was able to download it but it does not allow me to save it in a drawing format or a photo or a png, it does nothing useful for me sadly. Once again I find software from a single company that is incompatible with it's own software. It's sad that industry would put up with or tolerate **** like this.