<font size="3">Hello,�</font><div><font size="3"><br></font></div><div><font size="3">As part of my current project, I'd like to build a small plastic fastener to fit the parallax continous rotation servo (see dimensions here:�<a href="http://www.parallax.com/Portals/0/Downloads/docs/prod/motors/ServoDimensions.pdf">http://www.parallax.com/Portals/0/Downloads/docs/prod/motors/ServoDimensions.pdf</a>).�</font></div>
<div><font size="3"><br></font></div><div><font size="3">I've never 3d printed anything before. The fastener system includes �small cylinders meant to go through the 4 small holes to both ends of the servo (diameter 4.5mm).�<br>
<br>Question: how big should the cylinder be in order to fit snug (a bit like lego prongs). My current design has them at exactly 4.5mm, but I'm thinking that there might need to be a couple of fractions of mm of buffer, otherwise the prong might be too big and not fit through the whole.�</font></div>
<div><font size="3"><br></font></div><div><font size="3">I was thinking of getting the fastener printed by ponoko out of their "durable plastic material" which they specify has a Minimum Detail Size of 0.6mm (<a href="http://www.ponoko.com/make-and-sell/show-material/237-3d-printed-durable-plastic">http://www.ponoko.com/make-and-sell/show-material/237-3d-printed-durable-plastic</a>)</font><span style="font-size:medium">. I might also try to do it using the printer in the modlab, but i'm not sure how that works (do I have to get permission, what times should I come and do it at, things like that)</span></div>
<div><span style="font-size:medium"><br></span></div><div><span style="font-size:medium">Any advice, most welcome, thanks</span></div>