Printer size for cera-1?

[madk...@gmail.com]

Hi! What’s the minimum printer size for cera-1? Thanks

[cera.tops]

Hi madkust2!

Not exactly sure what you mean...

Do you mean what size printer do you need to produce the 3D printed components for the extruder?  If so, then the 3D printer would need to have a minimum build size of 84mm x 92mm x 113mm.

Or maybe you meant what size printer will support the extruder?  If that's what you meant, then my answer is: any size!  What is more important is the printer's payload (how much weight the printer's end effector can carry).  If you plan to mount the extruder directly to the printer, like I did, then you'll need a printer that can carry quite a bit of weight - the extruder is pretty heavy, especially when it is fully loaded with clay.  This is why I chose a CNC framework to base my printer on (shapeoko 2).  However, here are some examples of ways the printer could operate even if it cannot carry:

1.) Using a bowden-style hose, as I did with a desktop robot arm at MKE makerfaire:

https://www.instagram.com/p/Bn2Tjvgg6sc/

or like you can see Tom Lauerman doing here with his extruder:

https://www.instagram.com/p/BKvauAnjMjJ/

2.) Moving the print platform, rather than the tool, as you can see Keith Simpson doing here:

https://www.instagram.com/p/B-P1UrFjyJj/

I hope that answers your question!  Please let me know if it doesnt :)

Best,

Bryan

[randy.w....@gmail.com]

that answered my question as well

[gara...@gmail.com]

Hello Bryan, could you share the modifications that you did to shapeoko 2? Thank you

[cera.tops]

I am in the process of documenting this and will be releasing it in the coming months.  

The main modification was replacing the z-axis with this:

https://www.alibaba.com/product-detail/0-05mm-positioning-accuracy-linear-motion_60770861584.html

[Matthew Kyunghwan Kkim]

Thanks, Bryan!

This is the thing that I've been looking for ages!!

Appreciate it:)

[Jeff Nielson]

Bryan,

Can you share your thoughts about the z-axis decision?  Is there a specific failing of the openbuilds C-beam?  I know it is a little more expensive, but I'm thinking that it might be better for me since I'm looking for more height. FUYU makes a longer one for about the same price.

FUYU   

"Guide Length":  300mm = 12 inches for $92

They also make a 450mm = 18 inches for $103

Unclear shipping time

Unclear shipping cost

OpenBuilds

Full Stroke length:

• 250mm is ~6" (150mm) 6 inches $140
• 500mm is ~16" (400mm) 15.7 inches $160
• 1000mm is 35" (900mm) 35.5 inches $180

Fedex $14

Anyway, I'm specifically hoping you could answer:

1. Is the FUYU working out well?

2. Was there a particular problem with the openbuild?

3. How long did it take to arrive from China/India?

Thanks.

[cera.tops]

Jeff,

I ordered the FUYU from an amazon seller and took 4 to 5 weeks to arrive.  It is working out great as a replacement for the Shapeoko 2's orignal z axis.  I have not yet tested the openbuilds z axis, as that project is still in development.  I am hoping to move to sourcing as many components as possible from openbuilds as it is a one-stop shop for most of the printers' framework.

I lost access to my lab when covid-19 hit canada, so am much farther behind than I wanted to be on development for all of this stuff.  When I have more info on openbuilds vs shapeoko 2 + fuyu z axis, I will publish that info here.

Hope this helps!

Best,

Bryan