Showing posts with label integza. Show all posts
Showing posts with label integza. Show all posts

Thursday, May 12, 2022

Modified Integza pneumatic motor

Experimenting with the Integza Wankel for semester 3 project at Bellingham Technical College:

^3D printed Fused Filament Fabrication(FFF) PETG^
  • Modified the shaft to be longer and added a spline for energy transfer to a gear(bevel). Not sure how much torque transfer is capable of being delivered. Yet!
  • Modified the lid with 3.25M bolt holes, a wider shaft hole to fit a 688z (8 x 16 x 5mm) bearing, and chamfered bearing shaft hole to clear the 688z's inner race from catching. WORKS!
5/12/22
  • New 6802-RS bearing (15 x 24 x 5mm) required press-fitting. I might reduce the printed dimensions in the future. This solution is more rigid but has more friction than a 3D printed plain bearing.
  • The rotor needs to be sanded, it is too tall by 0.1 mm-ish. WORKS!
  • The pneumatic fittings are too big for the case and cracked the I/O ports. Remodeled with 9.75 mm ports, no threading added yet.
  • 9.75 was too big(wasted time, plastic, electricity). Pictured below, left.
  •  9.625 mm ID with .4 x 2mm chamfer works, tested on a subsection. Pictured below, upper right.
  • The next test is adding threads. I imported the fitting model into fusion 360 from the McMaster catalog.6 mm OD, 3/8threads.