oring base 2

thingiverse

Here's how you can build a customized version of the "Large Castor Wheels" design on Thingiverse. To get started, head to this URL and click the Customizer button: http://www.thingiverse.com/apps/customizer/run?thing_id=225603 Follow these steps: * Set the cross-sectional diameter to 2.6. * Adjust the outside diameter to 38. * Increase the sprue thickness to 0.7. * Ensure minionizing cross-section is set at one. * Keep the goal at a single unit of measurement. * Heighten the riser by an additional 15 units. * Increase the internal angles by adding 60 more lines (using the fn value). * Remove any hole inside with an inner diameter greater than minus one unit of measure (you will be using standard units). * Leave units unchanged as the system uses this option already; don't make changes there unless you are positive on its impact to what the print should produce. Additionally, adjust for undersized holes within prints by allowing a margin increase around 0.2 when designing such a structure for precision.