Den B

What do you home machinist guys do to cut an inside taper when you make your own prop adaptor?
I have a small lathe and turned up an adaptor but got stumped when it came to the inside taper.
Any ideas or tips




Thanks

Den

Rupurt

I did this a couple of weeeks ago on a myford, If you can ajust the angle of the tool post i found 10.5 degrees off of the axis worked best other people found it to be about 11.5. I had to grind a little boring tool to fit inside that little hole.

Rupurt

If its any help i asked this question a couple of weeks ago the thread is on the second page of the engine conversions forum the subject is "homelite 25 question"

vicman

My Feedback: (10)

Can you post a pic of what you are using and what you are trying to do?

Den B

Vicman I am making a basic prop adaptor for a Poulan 42 cc I don't have the exact dimension right now but here's about what I'm doing


engine shaft .449 tepres to .33 or so



I would like the shaft to slide in the adaptor a bit say 3/4" then cut the taper then allow for the shaft nut after that I'll just make up a four bolt prop setup up front I can take a pic later

Thanks

Den

mikenlapaz

Den B: You may want to check this out. Post #7 Dave shows his method of making prop hub without taper. Believe even more discussion in Dont forget Echo thread.

http://www.rcuniverse.com/forum/m_19...tm.htm#1938051

Den B

Thanks for the leads Mike I'm getting close Zagnuts siw shooter is what I'm kinda looking for
I got closer last night turning up a prototype to see what tooling I have to make , I ground a Unibit down to match the taper and it sort of worked,
After seeng Zags Hub I have got a way to do it (I think) now.
I'll take some pictures as I go on the next one


Thanks much


Den B