Best RPM feed speed and bit to cut white pine

[renatoh]

Hello all

I bought my shop bot three weeks ago and so far so good.
I've cut couple things and learned a little bit about the V-Carve(this forum has been a great help for me).
Now is time to start my first real project, to do this so I would like to make sure that I am running the machine on its best.
On my projects I intend to use white pine most the time.
To cut the pine I am using the Onsrud 1/4 straight up spiral with double flute on it with 15000 RPM, 1.9" per min. and 0.25" depth step.

Would some one have a better suggestion for me?

I would appreciate any help

Thank you in advance

[ljdm]

For pine, 1.9 is kind of slow, I'd cut it at 3, if you do .25 per pass, it shouldn't be a problem. Even though a downcut endmill can cause the kerf to clog with chips, I like it because it tends to help keep the material from lifting.

[renatoh]

Thank you Lou
I am going to try this,but what would be the spindle rpm for this?

Best regerds

[blackhawk]

With my PC router, I usually run it at 19,000 rpm for pine and hardwoods.

[ljdm]

I usually run 16000 with PC router on pine and oak, faster rpm seems to make more noise than any extra gain in move speed would be worth.

[jim_ludi]

Renato, you can use the chip load calculator that that you'll find in the ShopBot Console, on the menu bar, under Tools/Chip Load Calculator, to set up your feeds/speeds.

Additionally, Onsrud has detailed information about chip loads for various materials, at https://www.onsrud.com/xdoc/FeedSpeeds , for their bits. From their chip load reccomendations you can either manually calculate feeds/speeds or use the chipload calculator in the ShopBot console.

And, you can find a discussion about feeds/speeds and Onsrud bits on the Shopbot forum at:
http://74.125.113.132/search?q=cache:rWbdcgSV9rkJ:www.talkshopbot.com/forum/messages/29/15665.html%3F1161464191+onsrud+chip+load+calc&cd=1 &hl=en&ct=clnk&gl=us (http://74.125.113.132/search?q=cache:rWbdcgSV9rkJ:www.talkshopbot.com/forum/messages/29/15665.html%3F1161464191+onsrud+chip+load+calc&cd=1 &hl=en&ct=clnk&gl=us)

[jim_ludi]

Renato, the ShopBot Forum reference works better at:

http://www.talkshopbot.com/forum/messages/29/15665.html?1161464191

[renatoh]

Jim

Thank you for your help

It is being a great reference for me, now I just need to learn how measure the chips