R
Ron Sardo
Guest
I'd like to know the PRACTICAL difference between using a square sided carbide insert and a radius-edged carbide insert in the roughing mode.
Good Question
http://www.youtube.com/watch?v=NwNaANUAF7o
I'd like to know the PRACTICAL difference between using a square sided carbide insert and a radius-edged carbide insert in the roughing mode.
I interpreted Rob's question as the square bit versus the radiused bit (still 4 sides but something like a 4" radius to form the arc on each side). Both of these bits are sold for the Ci1 Easy Rougher.
The Ci0 is dubbed Easy Finisher and looks to have a circular bit with the same type of profile as the Hunter tool bits.
One point of interest in the video is the operator notes that he is cutting from the outside to the center, as if that was unusual. I wonder if this blank is in face grain or spindle orientation.
The Hunter tool is a bit grabby if you hold it flat. Usually it works better rolled to 30-60 degrees, IME. Hopefully there is something different about this tool since it can only be used in the flat position.
I am assuming that the demonstration was on green wood. I wonder how it works on dried wood?
I continue to be absolutely amazed at the number of intelligent people who apparently cannot accept the notion of a new tool that does what the maker says it'll do.Rumor, suspicion, doubt, and unwillingness to believe the word of people who've actually used the tool seems to be pretty common around here.
Speed too high? That's a subjective evaluation, especially from someone who's never used the tool. It cuts better at faster speeds. Simple as that. If you want to turn at 50 RPM, feel free to do so.
Green wood? Wet wood? Maybe Craig's using maple-colored styrofoam to make the demo look better. (Wet styrofoam, of course.) Believe it or not, the Ci1 can pull clean, full-width ribbons off a bone-dry ash blank. How? I don't know and don't really care. But based on my experience with the Ci1, I have no reason to doubt the Ci0 can do the same.
Y'all can just keep on turning on your spring pole lathes with hand-forged carbon steel tools, since apparently everything introduced since then is either wrong, impossible, or a devious plot by the manufacturer to take over the world.
/soapbox
I don't believe anyone, in any of these threads has questioned whether the Ci1 will do what it's advertised to do......but, that's not what is being examined. What IS being examined is whether it will, either theoretically or demonstrably, produce a better, faster cut on appropriate wood that is being turned in a manner that properly represents the tool in a fair analysis......instead of representing salesmanship.
OOC
Nice bit of doublespeak oddie.
What amazes me is the small number of folks that let their feelings be hurt, if someone else questions the usefulness of a new tool they happen to own. Why should reasoned opinion, analysis, thought, etc., on the subject be so important an issue, for you to attempt browbeating it, in an attempt to shut it down? ...
C'mon......lighten up a little bit, Ron......
Resorting to name calling doesn't help your stance.
....it usually means there is no intelligent reply forthcoming......
OOC
My feelings aren't hurt in the least. What some seem to consider reasoned opinion, analysis, thought, etc, I see as FUD.
I'm not trying to shut it down, either...just expressing my amazement at it. I'm not trying to change the way anyone here turns, but when I've just finished doing exactly what some people stridently say "can't be done", those people lose a bit of credibility in my book.
Carry on.
No name calling intended, just a typo, sorry
Personally ithink it is a new dog old tricks. Not to say my mind won't be changed when i have had one in my hand, But considering my experience with it is only a few youtube videos with no eveidence of finished product i dont think i will be purchasing one anytime soon.
My PERSONAL GUESS is that for roughing a bowl, the Easy Rougher is about twice as fast as when using a bowl gouge. You will probably still clean up with a bowl gouge. I'm not saying to stop using a bowl gouge, but it is much quicker if you start with the Easy Rougher.
...Out of curiosity, what was it that you just did, that others stridently say "can't be done"?...
...I just think the work would be better if they learn to use a bowl gouge and the advantages of the gouge. I also think the finish will be better off of a bowl gouge, especially in tear out prone wood.
..."Does it do anything that i can't do with an existing tool in my arsenal?"
Roughs outside fast - So does my 5/8 bowl gouge
Does it do finish cuts - Jury still out on that one for me, but have several gouges that do
Does it remove material from inside bowls quickly - My Pro-forme can hog out a 16" diameter x 5 inch deep semi-dry bowl in 15 to 20 minutes.
Inside bowl finish cuts - Jury still out on this one also, but once again i have gouges that do.
Personally ithink it is a new dog old tricks. Not to say my mind won't be changed when i have had one in my hand, But considering my experience with it is only a few youtube videos with no eveidence of finished product i dont think i will be purchasing one anytime soon.
Originally Posted by Rob Wallace:
I'd like to know the PRACTICAL difference between using a square sided carbide insert and a radius-edged carbide insert in the roughing mode.
Rob,
To answer your question, I think the main difference is that with the radiused bit, you can more easily blend your cuts together with less of a chance of having steps or grooves at the edges. Technically, since it is a roughing tool it shouldn't be a big concern, but for those of us that like to design the form as we turn, these lines could be a problematic distraction from the actual shape of the turning.
This is my best take on this.
Here is what the Easy Rougher website has to say:
The same Ci1 accepts either the crowned insert or square insert. The crowned insert excels at spindle roughing and finishing and working inside bowls. Choose the square insert for cutting square shoulders such as tenons on bowls and spindle work. For maximum efficiency have a tool for each insert.
I just think the work would be better if they learn to use a bowl gouge and the advantages of the gouge. I also think the finish will be better off of a bowl gouge, especially in tear out prone wood.
I continue to be absolutely amazed at the number of intelligent people who apparently cannot accept the notion of a new tool that does what the maker says it'll do.Rumor, suspicion, doubt, and unwillingness to believe the word of people who've actually used the tool seems to be pretty common around here.
Speed too high? That's a subjective evaluation, especially from someone who's never used the tool. It cuts better at faster speeds. Simple as that. If you want to turn at 50 RPM, feel free to do so.
Green wood? Wet wood? Maybe Craig's using maple-colored styrofoam to make the demo look better. (Wet styrofoam, of course.) Believe it or not, the Ci1 can pull clean, full-width ribbons off a bone-dry ash blank. How? I don't know and don't really care. But based on my experience with the Ci1, I have no reason to doubt the Ci0 can do the same.
Y'all can just keep on turning on your spring pole lathes with hand-forged carbon steel tools, since apparently everything introduced since then is either wrong, impossible, or a devious plot by the manufacturer to take over the world.
/soapbox
Well, I can't show you a video of the Ci1 in action but I can show a before and after picture of a dry cherry blank that I roughed with the Ci1 tool. The time to get it round was under 20 minutes without any physical strain. The finished piece is in my photo gallery.
So, for those that DO believe, and have made their own tool, what specific (link please, maybe) carbide inserts did they use?? I tried ordering what I thought were the same ones from an ebay seller, but they aren't sharp;; they certainly have an edge, but were meant for a metal lathe for roughing, not wood; they're not even close to being as sharp as a carbide saw blade or straight router bit. Its kindof a low priority project for me, but I'd really like to know where to get them. Enco and carbide cutter have 100's of inserts to get confused with......help finding the right one must be out there....