TopFinishKits.com -- DIY Science Olympiad Kits

  • "DIY Modular Vehicle"
  • "DIY Wing Nut Braking"
  • "DIY Micro Stop Switch"

3D Models

Below are the 3D Models used in the kits. The original kits used ABS plastic because the higher strength properties. But ABS is harder to 3D print. Other plastic materials like PLA will work just a well. I recommend testing your printed parts to verify you are comfortable with the strength. The 3D printer settings will effect this greatly. We make no promises that any models below are strong enough. How a 3D printer is configured and the material used effect the strength.

There are two types of files below. The STL files which are 3D definition files. Most 3D printers do not accept these type of files. A conversion or slicing program must be used before most 3D printers can print these models. Consulate your 3D printer manual for more information.

The other file type is the F3D files. The models were created in Autodesk's Fusion 360 software. This is a free 3D CAD software to students and educators. Many of the models below have their Fusion 360 files (F3D) available for download. This will allow modifications to the models.

Bearing Plate

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationHoles perpendicular to bed

NOTES

The holes around the 3/8" hole need to be tapped using a M4x0.7 tap to be used with the M4 screws to hold the bearing in place. Or replace with equivalent wood screws.

The 3/8" hole in the center is designed to accept a 3/8" flanged bearing.

Brake Adapter

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationAs shown in picture

Joining L Plate

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationAs shown in picture

Bushing ID:3/16" OD:3/8"

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationHole perpendicular to bed

NOTES

Optional printed bushing instead of using a metal bearing

Wheel Inner Hub

STL


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationHole perpendicular to bed

NOTES

Designed to mount a standard CD / DVD to a #10 thread rod. An Inner and Outer Hub is required for each wheel. Up to 3 CD/DVDs can be used with each Hub pair.

Wheel Outer Hub

STL


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationHole perpendicular to bed

NOTES

Designed to mount a standard CD / DVD to a #10 thread rod. An Inner and Outer Hub is required for each wheel. Up to 3 CD/DVDs can be used with each Hub pair.

Micro Switch Mount

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationFlat surface parallel to bed

NOTES

Designed to mount many models of micro switches and allow the switch to be activated by the wing nut.

1/4" Dowel Rod Adapter

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationTop surface parallel to bed

NOTES

Allows a 1/4" dowel rod to be mount to vehicle. A screw can be threaded into side hole to hold dowel in place.

Consulate the event rules to verify this mount conforms to the rules!!!

RC Motor Mount

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationTop surface parallel to bed

NOTES

Allows a typical RC motor to be mounted to side frame rail. Additional gears and/or pulleys are required to connect motor to axle.

RC Tire Adapter (12mm)

STL F3D


PRINTING RECOMMENDATIONS
MaterialABS or PLA
Layer Height0.2mm
Fill Percent40%
OrientationHex nut on bed

NOTES

Allows a RC tires with a 12mm hex nut to be adapted to the #10 threaded rod. Not all tires will work and some modifications to the tire are required.