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Woodturning Heart For My Valentine Plus A Collet Flop
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- Опубликовано: 12 фев 2019
- www.AsWoodTurns...
This is an early release for Valentine's Day. I turned this hazelwood heart for my wife. It is turned from a 7/8" cylinder which is then sliced at a steep angle. The two parts are then rotated and reglued to form a heart.
In the process, I tried to make and use a wooden collet to hold the cylinder. The wooden collet is modeled after steel collets used in metal working. My collet failed but I think the concept could be useful in woodturning. Please view this video and add your suggestions.
Happy Valentine's Day.
Enjoy!
Blog: www.AsWoodTurns...
FB: / aswoodturns
Music: Traumerei by Shumann performed by Becky Schlappi. Used with permission.
I once needed to hold a small work piece (1/8") and I emailed Dave Springett in U.K. To ask how he holds Lace Bobbins for turning. He was very helpful in suggesting making a collet chuck with wood. Size the chuck to fit perfect circle in a standard chuck, drill a hole the size of the piece to be held, then take the wood chuck to the band saw and cut the side to the hole. With one saw kerf there is enough to grab the spindle. I have now made several of these and for Bobbins I cut it into two pieces and use elastic bands to hold it together when not in the jaws. I put a couple of groves on the outside to hold the elastics. The thickness of the wood chuck can be varied to protrude the work away from the lathe chuck and provide more wood support.
Bert,
You always have great ideas. Thanks for the suggestions.
Alan
I made one of these for my wife for Valentine’s Day, not as a necklace just as a “worry stone”, our last name is Hart so we love most anything heart shaped. The next day I had to rush her to the ER. They ended up having to do an emergency pace maker installation. In recovery a nurse came up to my wife and asked her if the little wooden heart was hers! She had sneaked it in the OR and they found it later. This will be our most memorable gift ever.
Great story - one to pass down to the next generations.
Alan
Happy Valentines Alan, at 2:43 in the video if you drilled out the end for 1 side of the heart, round off the end closest to the headstock, part off and repeat for 2nd half. then cut angles to match. Nice looking project.
I may have to make it longer so I can waste more wood for that technique.
Thanks for commenting.
Alan
Nice project, Alan. Regarding the idea of drilling to hollow the heart .... have you considered using something like a Dremel tool to carve out the interior? It might not be pretty or precise, but after gluing it together no one will see the inside and some of the weigh5 would b3 removed. Just a thought. I need to get out to the shop and give this project a go.
A dremel could work but IMHO, slower.
Alan
Make your collet chuck just as you did then rem out the hole to fit. Then make two cuts with a thin kerf saw by hand at 90deg make same cuts on other side that are centered between the cuts on the first side. Leave a small rim at one that will seat on the face of the chucks jaws face.
Randy,
Thanks for the suggestions. Now back to the drawing board.
Alan
I watched Steve Jones, a UK woodturner,turn a heart between centres and then cut on bandsaw. His process is simple and great skew practice.
Yes, looks like great skew practice.
As is typical in a video presentation, I think it is a bit more difficult than it appears. I like his more rounded heart. However, that means he has to take particular care to make the two pieces almost exact mirror images of each other. Then sanding to match without some offset seems difficult.
I'm not taking away from the presentation. But as usual there's a little more to it.
Alan
Take a pvc pipe, cut longer than your tower jaws and true up both ends plus the in and outside if needed. Then make a single length wise saw cut. Mount work in the pvc mount this in your chuck. Your limited to size, but you have a collet jaws that won’t mark your work.
Should work fine for (as you say) a limited range of sizes. But they make it in many sizes.
Thanks for adding your comment.
Alan
December 2017 American Woodturner had an article on making collet chucks. I have it put away, but as I recall they cut into three pieces and use rubber bands to hold the pieces together when out of the chuck. Nice little heart, BTW, I hope your wife enjoys it.
Thanks for the heads up except that it was August 2017. It is probably what lingered in my mind. Still I think it can be adapted.
Alan
Thank you so much for great ideas happy valentines 🍻🍻👍🏼
You are welcome Tomas
Alan
Very nice and good to see your use of the clamp to make bandsawing a bit safer. I would be very interested to se how you would drill out the centre.
I'm thinking a sled would be even better than the clamps.
I'm also interested in how to drill out the center. :)
Thank you
Alan
Alan; Be very cautious when making small off-cuts on the bandsaw. I once broke a blade when the offcut fell down the slot, and lodged between the wheel and blade. BANG!! New blade time. Ever since I use painters tape as a kind of zero clearance around the saw blade when doing small offcuts.
Good idea for the masking tape around the blade. Could slow down some of the small stuff.
Thanks for commenting.
Alan
I think you may need to taper the collet similar to the design of the metal one, and instead of just two cuts on each side, maybe four or more, again similar to the collet you were making your design from. Just a thought on the collet, wonderful idea for valentines day though.
Thank you Bert for your suggestion.
Now to the drawing board....
Alan
You could do the same style collet by adding a thin layer of plywood to the front and back or solid wood with the grain directions perpendicular to each other. When making the cuts make them in line with the grain on the face you cut through.
I appreciate your suggestions.
Alan
An idea for the makeshift collet chuck... if you turn a longer cylinder, and have it clamped in the chuck on the headstock end, you can drill a hole in the centre for whatever size you want. Then, on the bandsaw make 2 cuts 'along' the cylinder, so that when you look at the end grain of the cylinder you see a 'cross shape' with the drilled hole in the centre (does this make sense?). Then use a hose clamp fitted around the cylinder to clamp the piece of wood you want the collet to hold onto. Great project Alan, next year you can make one with inlayed veneer to make it extra sophisticated! :)
Thanks for the suggestion.
Just a note. I'm trying to avoid using a hose clamp.
Inlay such as a Celtic knot?
Alan
@@AsWoodTurns Celtic knot inlay would be a real nice feature. If you don't want to use a hose clamp, try using those really large and 'stiff' rubber bands to hold the collet tight, or you can even buy thick rubber strips, make some rubber bands out of them, and use those to hold tighten the collet. Any way, just ideas.
Great idea for your sweetheart 👍🇺🇸
Thank your - she's worth it.
Alan
The heart looks good.
I have what looks like the same ER32 collet chuck.
For a wood collet chuck, I have turned a cylinder to fit in one of my Talon chucks, drilled a hole of relevant size for the work and then made a single cut along the length of a chuck with a hard back saw, just to get thinner kerf than a bandsaw. This does not have a lot of range of adjustment for the work, so the hole and work diameters need to be close. It is stronger than the several cuts of a metal collet design.
To drill the heart, I would have held the work in my mill vise.
Dave.
Thanks for the suggestions. Now to the drawing board.
Alan
On a technical note I used some 1” square oak pen blank in pen jaws to make. Once I got the outboard end rounded and sanded I stated to round and sand as much as I could from chuck end. Then parted it off. I flipped and wrapped one end with a little craft foam just to hold enough to sand other end.
Craft foam may work better than masking tape that I've used.
Thanks for the idea.
Alan
Hi Alan, If I understand your question regarding "drilling out", you want to hollow it to reduce weight? I would drill it out prior to even cutting the two pieces that form the heart.
The collet: I've seen collets made for use on wood.(Made of metal) I've seen them in use here on RUclips.
When the one you made failed, how did it fail? It appeared to be a design close to being workable.
Yes, I wanted to reduce the weight. The collect failed because I did not plan on it cracking and the piece was too small to hole in the collet for drilling.
Thanks for your suggestion
Alan
I have the Vermec ER32 collet chuck and it might only get used once or twice a year, but it has paid for it self several times in the past few years.
I'm still looking for my 1st use in several years. :)
Thanks for commenting
Alan
Lovely heart Alan. I don't have any experience with collet chucks so sorry can't help. Would love to see what your other followers with a lot more experience come up with to solve the problem. Cheer, Huw
Then stay posted...
Alan
Solution to hollowing. Don't make a "pill" and cut it in half. Make half 2 "pills", hollow them them cut them to length and angle.
Thanks for your suggestion.
Alan
I wonder if you could start with a piece a bit longer, cut it in half square for drilling BEFORE cutting the angle? I APPLAUD you for making your own hanging loop. I use various colors/guages to make hangers instead of those screw-in eyes. The home-made hangers just look so much more "art-ful"... Great little project! Thanks!
I also hate the screw in eyelets. The home made as so easy, I cannot see using the commercial versions.
Alan
Nice project.
I also have an er32 collet chuck that I use a lot when making pens. But er32 collets don't come any larger than 20mm, and so are too small for this application. Of course, you could always make the heart smaller, which means that the dowel that you are working with will also have a smaller diameter. There are larger collets, but I'm not aware of any larger collet chucks that mount on a wood lathe.
I think your idea is workable, but just needs fine tuning. One problem is that the hole you drilled was smaller than the dowel you wanted to mount, and forcing the dowel into the hole expanded the collet to the breaking point. Also, the collet was rather short, which means that after you cut the slots, there was very little solid wood to hold the collet together. In addition, cutting the slots from opposite ends of the collet weakened it. Finally, the characteristics of the wood used to make the collet chuck are a factor - you have to use hard wood with tight grain - cedar may just be too soft. A hard wood like maple might work better.
My suggestion is to try again, but this time:
1. Use a drill bit that is very slightly larger than the diameter of the dowel you want to mount in the collet. Also, if you only bit you can find is too large, you could also wrap some paper towel around the dowel to pad it out before mounting it in the collet.
2. Make the collet longer so that there is more solid wood to hold the collet pieces together.
3. Cut both of the cross cuts at the same end. Also, make collet chuck very slightly conical with the OD at the end that grips the dowel larger than the OD at the other end.
4. Finally, experiment with other timbers to make the collet chuck.
Thanks for the detailed suggestion. Has promise.
Alan
Sometimes the simplest ideas work best. How about hot gluing the four separated wooden collet jaws to each of the steel chuck jaws? I think a slightly larger drilled hole (over the blank diameter) would let them clamp at the proper size by allowing for the saw kerf. Sort of like reusable wooden pads for your chuck jaws.
I used an electric die grinder with assorted router bits to hollow out a small project. 1/4" shank router bits fit nicely in the die grinder. I tried the router bits in a drill, but the RPM's were too low and the bits tended to grab. Less of a problem at the high RPM's of a die grinder. A very light final pass usually removes any burn marks. Extreme care should be used.
Perhaps hot glue again to temporarily attach the project pieces to a sort of glue block that fits in a vice or some other clamp. Hot glue comes off fairly well with the help of rubbing alcohol.
Hot melt should flex - that's an interesting idea.
Thanks for the suggestions.
Alan
@@AsWoodTurns I was reading my original comment and I see that I misspoke on the router bits. actually they were burrs made for an old die grinder. Sort of rotary files. I have several sizes and shapes.
Cute piece, Alan! I'm sure she'll love it. You were on the right track with the collet, but you didn't make enough cuts. Double the amount might have given the wood the "spring" it needed to stay in tact. The species used is also important. For example, a brittle wood like cedar or juniper would not be a good choice for the collet. Grain direction is also important. Don't use a cross grained piece. Spindle stock should be best I'm thinking. You need a wood with some flex, if you will. Maybe a softer wood like pine, but I'm not positive on that. Also if your hole was under sized too much, you're going to fracture the grain regardless of species. Either sand it out more, or use a small scraper to enlarge the hole slightly. Even a Dremel style tool would work. As for hollowing the piece, you are right about trying to use a twist drill in the angled piece. However, a small forstner bit could work if you go slow and take your time making very light cuts. But a Dremel could also be used here. Of course, all this is speculation as I have not done it.
Billy
Billy,
Thanks for the suggestions.
Dremel???
Alan
Alan, I'm talking about a Dremel rotary tool... if that is what your ??? refer to. There are a number of brands that do the same thing.
Billy
@@TheMessyStudio Or course and I do have one. The only thing is that it is not the first tool I think of in a pinch. :)
Alan
@@AsWoodTurns Ah, got it. Yeah, for the hollowing aspect I took my woodturner hat off and went the power carver direction with my train of thought.
Billy
I feel that the DIY collet chuck might work if you have more cuts in it. Also, a stronger material would help, especially if you were to use something without a grain to split on like HDPE.
Have you considered making a longer cylinder, chopping it in half, and hollowing each half on the lathe before making that bandsaw cut that's high on the pucker factor? I'd be tempted to cut it by hand myself, but my bandsaw has tried to bite me in the past on similar cuts.
HDPE could work but I'd like something less expensive.
I'm considering some sort of sled for the band saw cuts.
We'll see.
Thank you.
Alan
@@AsWoodTurns Less expensive??? Wash & save old milk cartons for a few weeks, cut them up into little pieces, buy a pan from goodwill for a quarter, cut a piece of scrap wood the size of the pan, fill the pan with milk jug chips, throw it in the oven (toaster oven if your wife is uptight) at 325 degrees F until it turns translucent, and smoosh it down with something metal. (Yes, smoosh is a technical term. ;-) =) ) Add chips, melt, smoosh, and repeat until the pan is full. When you take it out the last time, put the scrap plywood you cut earlier on top & clamp it down. Cool & remove everything - pan might have to be sacrificed as it sometimes sticks. Voila - almost free HDPE material!
I turned my boat trailer with bunks on into a roller-trailer and used this technique to make 30+ rollers out of old milk jugs cast in mushroom cans - cost me basically nothing and now my boat comes on/goes off VERY easily. =)
@@RealRuler2112 I will have to try your DIY HDPE. :)
Alan
Hi Alan - as entertaining and thought provoking as ever. Re the drilling out issue... could you not have cut your turned cylinder in half at 90 degrees initially, held the pieces in the collet, drilled into the flat ends to depth and then returned to the bandsaw to make your angled cuts?
Yes, if my cylinder were longer. As is, I could use the same cut surface without using 2-3 inches more of the cylinder. But that may have to be...
Thank you
Alan
i thought about doing a piece for my chuck and i was going to just cut the round piece just once and remove two of the jaws , i have not done this
yet but i think it will work ,you can give it a try and let me know if it works .......i did buy a collet like you have and have use it alot but when i buy a second one i will buy a different model ,one that cost a little more ...
Pondering...
Thanks for your suggestion.
Alan
I think “drilling” out the center might be easier if you just “carved” it out with a ball hog bit on a Dremel-type tool.
Ahhh. Dremel to the rescue. I don't think of using a Dremel very often.
Thank you
Alan
On your failed collet you could use o-rings to hold together, then clamp in your Chuck.
Could a rubber band substitute for an o-ring?
Thanks for your suggestion.
Alan
I made a wooden collet using a hose clamp to close the "fingers" around the dowel. Very simple. I can send you a photo if I know where to send it.
I've seen similar chucks but don't like the hose clamp. It's a good fall back if this thread does not work out.
Thank you Ken
Alan
I think you’d have to cut the cylinder in half, and hollow each end separately like a lidded box, then glue together (?), but cutting on a bandsaw might be more difficult. Maybe cut them long, and sand away the excess, which would happen pretty quickly.
Have you seen this method? ruclips.net/video/Z20Lkaan86g/видео.html
Thank you for your thoughts on this project.
Alan
Would you consider using a piece of rubber for the collet? It would be more flexible than hardwood.
Rubber may work but I find it difficult to drill.
Thanks for the suggestion
Alan
Hope Mrs wasn't watching, she will Love it!
She does. :)
Alan
Nice piece Alan! Given that the angle you used was cut/fit, can you please share what you estimate the finished angle was/is...?Thanks! V
You called my bluff. Probably somewhere between 20 to 30. I eyeballed it and then sanded until it looked good.
At 45, the two pieces would end up at right angles.
at 0 you have no cut. so...
Try it first with a plain dowel.
Alan
Using a rubber band would work possibly as good as a o-ring. Just anything elastic to stretch to hold the pieces together. Hope this helps.
use hot glue to hold while hollowing
Hot glue is a frequent fall back for me.
Thanks for the suggestion.
Alan
hollow first then cut angles
Thank you for contributing your suggestion
Alan
use pvc pipe and radiator clamp
PVC is an option but I'm trying to avoid the radiator clamp.
Thanks for the suggestion
Alan
i dont think you needed a collet chuck. just hand sand the one end.
Without the hollowing, I probably did not need it. But here's hoping.
Thanks for commenting
Alan