• Laser cut fins at Peter’s lab. The DXF and step files are below.

FIN-STD-250T-4X250C Fin, Standard, Mojave Sphinx.DXF

FIN-STD-250T-4X250C Fin, Standard, Mojave Sphinx.STEP

• Ply wood is in locker 3 (i think)
• Paint the fins a color of your choice,
• Chamfer the leading edge.
• Double check the wood doesn’t have formaldehyde or that peter’s filter is good for that. https://www.mcmaster.com/1125T412/ before cutting in peters lab.

DOCUMENTATION

The laser cutter has a good filter for formaldehyde the chemical, so we good because the mdf used for team rockets had formaldehyde too but it was fine. He’s never been asked to check for it before.

The laser cutter didn’t cut the fins all the way thru after 2 tries because the plywood was too thick. We cut the fins manually using a cutting machine following the laser cut outline. The holes were drilled in.

to chamfer, sand paper was used to sand the edges down until it looked like the cad.

Some of the plywood surface started to chip from cutting it so Peter had to glue it together but it’s a minor surface typa chip.

Peter adviced to chamfer the trailing edge of the fin because it chipped a lil bit, however it’s not included in the original fin design so we need to discuss whether we want chipped or chamfered.

Peter recommended to do a layup because he thought the material wasn’t strong enough, but if it has been launched before like that then it’s fine.

Laser cutting vlog for visual learners (volume up):

v09044g40000cvlnibfog65rpf3pmgv0.mp4