Hi Curt, I will take the longest pitch to practice. For the post, I will have to chose the pitch according to the length of the twist I guess. 1/4 or a rotation on a 24 inches length more or less.
Le mardi 2 avril 2019 00:56:39 UTC-4, Curt George a écrit : > > Hello Guy's! Sorry to be a late comer to this topic. > > Emmanuel everyone has given you some good advice on this topic. > > start with something you do not mind if you make a mistake on ... (scrap > wood. or green wood. or at least something cheep.) > Set the LONGEST pitch you can set on your machine. and Make lots of light > cuts. nibble your way down to the finish size. > Here is a picture of a cup I made using a banksta pod.[image: Inline > image] > Anything is possible, > I wish you luck on your project. > C.A.G. > On Tuesday, April 2, 2019, 12:32:02 AM EDT, MWF <mwfo...@earthlink.net > <javascript:>> wrote: > > > Emmanuel, > > Where the "corners" of the flats on the two ends meet up with the > "corners" at the beginning/end of the Ribbon Twist, they will be the same. > However, once you start the Flat Ribbon twisting about the axis, you should > see that the 4 corners of the "Twisting" will end up beyond the flat faces > on either end. Looking at your sketch - If the 5 5/8" is the correct > measurement for stock that starts out as an 8x8, you will see that once the > two ends are milled down to 5 5/8" square and you begin milling the Flat > Ribbon, the "corners" of the Ribbon will extend above a plane that bridges > between the flats on either end of the stock by approximately 1 5/16" at > their apogee. > > I hope I have not confused you and the issue. > > Turn safely. > Mac > ------------------------------ > ------------------------------ > > -----Original Message----- > From: Emmanuel Peluchon > Sent: Apr 1, 2019 10:58 PM > To: Legacy Ornamental Mills > Subject: Re: Flat twisted post > > You are right Mac. In fact the post is 6x6 before milling. So I am a bit > confused. If I want the twisted section to look like the picture twisted > post.JPG ... *width of strait and twisted faces seems to be equal on the > picture. Optical illusion?* > > > > Le lundi 1 avril 2019 22:40:36 UTC-4, Va Oak a écrit : > > That's correct. > I knew you'd discover that - that your starting stock would have to be > considerably larger than your desired end state size - as soon as you > started milling the 1.5 re right " piece. > I just didn't know the exact amount you'd have to add. Again, once you do > a piece in pine that's 8 1/2" x 8 1/2", you will find out how well that > size worked to yield the finished dimension you seek. > > That brings up a question: Do you HAVE TO HAVE a final size of 6x6 - or > do you have a piece of 6x6 and you want to make the largest 4-side flat > ribbon turning from it that you can? HUGE difference - as you have already > seen. If you need to start with a larger piece, why bother getting one > that's been squared up? Instead, see if you can source a maple "log" > (round) that's a tad larger than the diameter you will need to start with. > No sense in wasting money & time buying a squared up stock only to then > spend time turning it into a round. > > Practice, practice, and PRACTICE! > > Best of luck. We all look forward to seeing photos of the various > "practice pieces" you create - as well as the Final piece. > Mac > ------------------------------ > ------------------------------ > > -----Original Message----- > From: Emmanuel Peluchon > Sent: Apr 1, 2019 10:24 PM > To: Legacy Ornamental Mills > Subject: Re: Flat twisted post > > Thank you Mac! I will definitly practice on inexpensive pine before. > I also realised that to mill a 6x6 square spiral post you need to have a > rough block of 8 1/8 x 8 1/2 as shown here*twist (1).pdf* > twist (1).pdftwist (1).pdf > Le lundi 1 avril 2019 22:06:09 UTC-4, Va Oak a écrit : > > Emmanuel, > > As Curtis would advise: DO NOT "try" this (the ribbon cut) on your piece > of maple - UNTIL you have tried it AT LEAST ONCE on an inexpensive piece of > 6x6. > If you can't find an inexpensive piece that size - make one by gluing up > several pieces of pine or basswood. > > Personally, I recommend you actually start with a piece of 1.5" x 1.5" > pine (inexpensive) and experiment to get a feel for the basic technique > (like Bill was describing). > Then, once you are comfortable doing it on a full length piece of the 1.5" > stock, try it on a full sized length of 4x4 pine. Again, you might > encounter a glitch or two when milling this piece - but that's why you are > using pine instead of your maple. > > Then, once you have done a 4x4 with no "issues", give it a go on a 6x6 > length of pine. Be sure to pay attention to grain orientation when milling > this piece - then apply the lesson learned when milling the piece of > maple. When you get that piece done to your liking, then - and ONLY THEN, > chuck up you piece of maple and knock out your 6x6 piece. > > Like several folks here usually promote: "PRACTICE - makes (close to) > Perfect!" So practice until you can knock it out of the park. > > Best of luck! > Mac > ------------------------------ > ------------------------------ > > -----Original Message----- > From: Bill Bulkeley > Sent: Apr 1, 2019 9:43 PM > To: legacy-orna...@googlegroups. com > Subject: RE: Flat twisted post > > No its done with a long strait bit cutting from the side not from the top > like the bit in your pic > > There is stuff about cutting a ribbon twist spiral in the archives of this > group it explains a 2 start, but to cut a 4 start you rotate the work 90 > degrees instead or 180 after cutting each spiral > > https://groups.google.com/ forum/#!searchin/legacy- > ornamental-mills/ribbon$ 20twist%7Csort:date/legacy- > ornamental-mills/xZDhgrJGKwU/ 2hqIhd3aGwAJ > <https://groups.google.com/forum/#!searchin/legacy-ornamental-mills/ribbon$20twist%7Csort:date/legacy-ornamental-mills/xZDhgrJGKwU/2hqIhd3aGwAJ> > > > > A 6 inch square 4 start ribbon twist spiral your strait or spiral cutter > will need to be 6 inches long dia doesn’t matter as your cutting from the > side not sure where to get a strait bit that long and it would take several > passes it would take time to do > > > > Anybody else know a easier or better way speak up it might be possible > to do cutting from the top but i have not done it i would have to > experiment and see if its possible > > > > Bill > > > > *From:* legacy-orna...@googlegroups. com [mailto:legacy-ornamental- > mi...@googlegroups.com] *On Behalf Of *Emmanuel Peluchon > *Sent:* Tuesday, 2 April 2019 8:38 AM > *To:* Legacy Ornamental Mills > *Subject:* Re: Flat twisted post > > > > Thank you Bill. Post is a 6x6 hard maple. I will have to make several > passes to plan 6 inches wide for the ribbon spiral faces. > > Would you use a 1/2 long spiral bit and plunge the router or a wide knif > (3 in) like the one like on the picture and move the router on the axis ? > > Le lundi 1 avril 2019 16:50:55 UTC-4, aussiman a écrit : > > Yes that’s a 4 start ribbon spiral its done with a long strait bit from > the side and your post is no longer than the mills 96” length > > > > Bill > > > > *From:* legacy-orna...@googlegroups. com [mailto:legacy-ornamental- > mi...@googlegroups.com] *On Behalf Of *Emmanuel Peluchon > *Sent:* Tuesday, 2 April 2019 5:44 AM > *To:* Legacy Ornamental Mills > *Subject:* Flat twisted post > > > > Hi, i am new user of LOM 1800 in Quebec, can somebody tell me if I can > craft a 48x6x6 post like this this this machine ? > > > -- > You received this message because you are subscribed to the Google Groups > "Legacy Ornamental Mills" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to legacy-ornamental-mills+unsubscr...@googlegroups.com > <javascript:>. > To post to this group, send email to legacy-orna...@googlegroups.com > <javascript:>. > Visit this group at > https://groups.google.com/group/legacy-ornamental-mills. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. 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