Saturday, January 25, 2014

IAP Week 3 - maiden crawl

Another extremely productive week at EVT.

Sprocket got machined! Here are some action shots!

the joys of cnc machining


hub fits!
After the sprocket got machined we did a couple of tests with the wheel propped up.

Then it was time to get to the hallway!


Sunday, January 19, 2014

IAP Week 2 - Lots of building!

IAP Week 2 is over and we are on schedule to be able to make a maiden crawl by next Saturday. This week lots of milling, turning, broaching, drilling, deburring, crimping, tapping, brushing, sanding occurred and we are very proud with the results!

waterjetting the alumnium (thanks Javi!)

Broaching the key on the sprocket
sprocket has been keyed!
fitting the bulkhead connectors

looks like the parts fit! time to sand and clean them!
yay! motor fits!
eric and joey making connectors
data connector layout

getting ready to rivet the angle stock to the waterjet plate
erich lining up both pieces carefully
the riveting art of riveting
notice our temporary acrylic sprocket (steel coming soon)

ready to assemble! 
putting in the new stays

looking pretty thus far! (notice the sexy bulkhead connector)
getting the motor in place!
"fully" assembled!! shorter u-bolts and steel sprocket coming soon!


starboard side of the trike

rear of the trike!
everyone tweaking the mounts

a video of the motor turning! (tension needs to be adjusted)

jacob on the trike!

woohoo the brake firmware/motor control works! thanks EE team!

in order to get familiar with HSMworks on the EZ track Jacob and Roberto machined a piece of abs with same features that are going to be machined on the steel sprocket this coming week (thanks to Andrew Carlson for the help!)

Saturday, January 11, 2014

IAP 2014 Week 1

IAP is a very busy time for us! Lots of design, machining and electronics going on these past couple of days as we ramp up to be able to drive the trike around the block by the end of the month!

Following are a couple of photos of the progress made by mechanical sub-teams, in another post the EE dudes will be posting their advances as well! lots of CAD advances this week, we plan to waterjet the plates this week!

sexy EVT chainguard and nice hollowed out sprocket

note how the data and the power connectors mount on the aluminum
Hollowed out sprocket under max chain load. Stresses are reasonable.

lauren busy machining

finished sprocket adaptor

sprocket adapter  mounted!

ubolts for the base done!