Tips for sketchup/3d printing

[josh]

Oh sorry wasn't concentrating >< there are a couple of plugins you can install but the ones i've found all remake the part with a volume note next to it. With the complexity of my parts it freezes for half an hour as it trys to recreate them. Easiest way is to upload it and look at the volume on shapeways.

[Rhys]

I'm sure that data sheet used to be 0.98g per cm^3, not 0.93. Either way it's still very light

[Andrew_Hibberd]

Has anyone ever tried to see if it floats on water? I may be putting a chassis in the sink when I get home

[peterwaller]

While being a long way from becoming an expert it is certainly starting to become easier.

[earthwormjim]

Very nice Peter.
Cant wait to see the final version.
I spent the weekend designing wheels.
This is the 26th one!!



Although,none of the wheels with a slanted face to the outer hub,appear correctly on shapeways.

[daliad100]

While being a long way from becoming an expert it is certainly starting to become easier.

We're all doomed now aren't we...

[Shakey]

Does anyone know if there is a model of the motor mounts available to download, I need it to help sizing my model.
http://www.robotbits.co.uk/motors-gearb ... od_11.html

[Rhys]

No, but theres full dimensions of the motor on the pololu website, so you can make your own mounts as part of your chassis.

[peterwaller]

Just had some emails from Shapeways saying my wheel can't after all be made and on checking the designcad drawing they are right the thickness of the wall joining the hub to the rim is somehow only 0.3 mm. After the initial disappointment I decided it was probably a good thing to redo them in sketchup which I did but when I upload them to shapeways the D hole through the centre when viewed in 2D or 3D appears to be blocked in the centre but it isn't on the drawing in sketchup even when I re-import the .dae file. Any ideas ???

[josh]

you have to make sure there is nothing inside the model no extra unnecessary lines or faces and all the blue faces are internal. download meshlab and use that to export as .stl. Sometimes sketchup .dae is useless above a certain amount of faces although I don't know what the limit is.