Welcome to Our Community

Some features disabled for guests. Register Today.

C-Bot

Discussion in '3D printers' started by Carl Feniak, Sep 29, 2014.

  1. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    Use the one in the reworks files if you are looking to use a direct drive with mk8 pulley. Print with 2 perimeters at 100% infill and 2 top and bottom layers.
    If you are going to use the E3D titan extruder then there are lots of options people have posted online.
     
    Krishnakumar likes this.
  2. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    Thanks Carl! Also what stepper motor do you recommend for direct drive?
     
  3. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    It is a balance between torque and weight. I am using a 200 step 48mm nema 17 just because that is what I had. A 400 step motor would be better.
    Mine are like this (for example), but you can source them much cheaper. I like having a flat on the shaft which this one doesn't have.
    42BYGHW811 NEMA-17 Bipolar 48mm Stepper :: Solarbotics
     
    Krishnakumar likes this.
  4. Chris Roadfeldt

    Builder

    Joined:
    Dec 29, 2015
    Messages:
    177
    Likes Received:
    100
    #3154 Chris Roadfeldt, Mar 6, 2017
    Last edited: Mar 6, 2017
    Krishnakumar likes this.
  5. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    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.
     
  6. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    Any recommendation for extruder motor selection from the links above?
     
  7. David Bunch

    David Bunch Veteran
    Builder

    Joined:
    Oct 27, 2014
    Messages:
    259
    Likes Received:
    72
    Muh_3d and Krishnakumar like this.
  8. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
  9. David Bunch

    David Bunch Veteran
    Builder

    Joined:
    Oct 27, 2014
    Messages:
    259
    Likes Received:
    72
    Here is a Tom's youtube video showing it with that motor.
     
    Krishnakumar likes this.
  10. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    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....
     
  11. Elmo Clarity

    Elmo Clarity Master
    Builder

    Joined:
    Jan 17, 2015
    Messages:
    504
    Likes Received:
    149
    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.
     
    Krishnakumar likes this.
  12. Chris Roadfeldt

    Builder

    Joined:
    Dec 29, 2015
    Messages:
    177
    Likes Received:
    100
    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.
     
    Krishnakumar likes this.
  13. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    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?
     
  14. Elmo Clarity

    Elmo Clarity Master
    Builder

    Joined:
    Jan 17, 2015
    Messages:
    504
    Likes Received:
    149
    Worked great when I got the hot end settings tuned in for NinjaFlex.
     
    Krishnakumar likes this.
  15. Chris Roadfeldt

    Builder

    Joined:
    Dec 29, 2015
    Messages:
    177
    Likes Received:
    100
    Ditto for me. NinjaFlex and TPU works great with the Titan.
     
    Krishnakumar likes this.
  16. Krishnakumar

    Krishnakumar Well-Known
    Builder

    Joined:
    Nov 25, 2014
    Messages:
    27
    Likes Received:
    13
    Thanks for the input guys!! What kind of print speeds are you using when printing with NinjaFlex or TPU?
     
  17. Chris Roadfeldt

    Builder

    Joined:
    Dec 29, 2015
    Messages:
    177
    Likes Received:
    100
    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.
     
    Krishnakumar likes this.
  18. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    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.
     
    #3169 Andrew Burgess, Feb 21, 2018
    Last edited: Feb 21, 2018
  19. ruggb

    ruggb Veteran
    Builder

    Joined:
    Jan 11, 2015
    Messages:
    135
    Likes Received:
    16
    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.
     
  20. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    Thanks. I have 7 weeks to get it together. =-) wish me luck.
     
  21. JCPhlux

    JCPhlux Veteran
    Builder

    Joined:
    Apr 19, 2014
    Messages:
    203
    Likes Received:
    41
    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.
     
  22. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    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.
     
  23. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    Yeah, sorry Andrew. I haven't been keeping up with the project as closely as I used to. Keep in mind that I first released it back in 2014! Did you find what you were looking for?
     
  24. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    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.
     
  25. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    I actually do have a new printer in the works but progress is slow as I have a toddler and too many other hobbies!
    As for the design files of this printer, you can find them under the "Files and Drawings" tab of this build under file "C-Bot Rework 123D.zip". All the parts were designed in Autodesk 123D, which is no longer supported, BUT is still usable. So if you wanted to manually recreate the parts in solidworks to help you learn the program then you could open them up and measure them with 123D.
     
  26. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    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.
     
  27. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    If you can't easily find it online message me your email address and I'll send you a copy (assuming you are using windows).
    Also see the files labelled:
    "Solidworks_Austin_Seagers.zip"
    in the files section. Though not directly compatible with part design history attached, Austin took the stl or steps files and converted them to be compatible with Solidworks. I am not sure which parts changed since their creation.
     
  28. Andrew Burgess

    Andrew Burgess Well-Known
    Builder

    Joined:
    Jan 27, 2018
    Messages:
    20
    Likes Received:
    1
    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.
     
  29. Carl Feniak

    Carl Feniak Master
    Builder

    Joined:
    Mar 18, 2014
    Messages:
    654
    Likes Received:
    228
    Yeah, it's a pain for sure. You can exports stls, but you had to get the paid version to export step files.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice