1.75in 3 blade prop spinner
Description
Instructions
You must be logged in to post a comment.
UPDATE: Since it seems like this is popular item, I decided to update it with other configurations. I made a 2 blade version as well as a 2 bladed counter rotating version.The base has a CR version as well. I will post a 3 blade CR version soon.
Do you know of anyone running a printed spinner on a gas engine? Your success proves the material will handle the forces and can be balanced, but I worry about heat. We are building a 134" Lancaster with 4 15cc engines and I have printed some scale spinners but have not had the chance to test whether they can take the stresses or not.
The spinner would have to get up towards 200C (392F) for you to have to worry. But there are a lot of gas motors that run plastic spinners. I think it should be fine. If the engine was set up as a pusher, that might be an issue as the hot air from the cooling fins would flow over the prop. But in a typical tractor prop arrangement, the spinner will have lots of air flowing over it. I think you should be fine. But I might be able to convince some nitro guys at my flying field to use one of my spinners just to be sure.The think I might worry about is using a starter on the spinner.
Made some tweaks to the spinner and base. The little fan features in the base seem to be too small for the Replicator, so I made them bigger. I also thinned out the spinner and added some ventilation/lightening holes. The newest version fits together well.
License
More from odie_wan
More from R/C Vehicles
UPDATE: I revised the spinner and base for the 3 bladed, normal rotation version. Made it a bit lighter. Should be less than 13gr. Also I flew the latest version (v5/v2base) today and it works nice.(See default pic)