Comment by Ivan on April 29, 2011 at 1:39am

@Chris: Sorry if lines were OK in older version, I've checked everything and found that difference, adjusted it to the Ponoko recommendations just to be on the safe side.

 

Regarding the kerf: additional kerf may only be needed where dome centers meet dome arch, but i didn't want to insert them there and change the original design. Since original ArduCopter parts are made of the same material and of same thickness I thought someone would inserted the kerf in those two spots if they are really needed.

3D Robotics Comment by Chris Anderson on April 29, 2011 at 7:34am

Please note that the real kit parts are made out of polycarbonate, which is much less brittle than acrylic. Unfortunately, Ponoko doesn't offer that.

 

My experience with the acrylic parts is that they will break with pretty much every crash, so make lots of them!

Comment by George Myers on April 30, 2011 at 12:22pm

Wondering what program was used to create the DXF files at code.google.com.  ViaCAD Pro and VcarvePro cannot load them.   thanks

 

Comment by Willems Helmut on May 1, 2011 at 3:31am

what's the weight of the material ???

Comment by Ivan on May 1, 2011 at 8:21am

Those DXF files in ArduCopter repository are known to be problematic, a lot of tools can't open them properly. You have them opened/saved again as DXF and PDF on this thread:

http://aeroquad.com/showthread.php?1499-Arducopter-frame-design-fil...

Comment by George Myers on May 1, 2011 at 2:20pm

Thanks for the link, have no problem with the files on on the link you provided.

 

JDrones Comment by Jani Hirvinen on May 3, 2011 at 1:19am

Original files were made with ArtCAM/SolidWorks and it seems that it inserts some extra strings on beginning of the files. AutoCAD, Google Sketchup and many programs opens those without any problems.

 

Only few parts are made from Acrylic. Most parts that needs to take "punishment" are made from Polycarbonate and PC cannot be cut with Laser it needs to be machined physically, but they are also strong.

Comment by Ivan on May 3, 2011 at 9:47am

Jani,

 

Can you please clarify which parts are made from acrylic and which are polycarbonate from this list:

Dome arch, Dome center lower, Dome center upper, Motor mount lower, Motor mount upper, Landing gear fin

 

Thanks.

Comment by SciFly on May 5, 2011 at 11:42am

Any thoughts on Delrin? I assume its heavier, but at least its durable and Ponoko offers that material (3.2mm is closest thickness) .

3D Robotics Comment by Chris Anderson on May 5, 2011 at 12:30pm

Delrin is crazy expensive. Better to buy the CNC'd polycarbonate parts from jdrones.

Comment

• ‹ Previous
• 1
• 2
• Next ›
• Page