The Improved Rosette Cutter

[charangohabsburg]

http://www.youtube.com/watch?v=mFCGX-nRaxE

This video is very interesting. Romanillos isn't using the wedges he usually uses to fix the ends of the sides into the heel block.

This video is from 1980.

Do you know what the one handled rolling pin is for ?
Its next to the top while he is shaping braces at around 4.24 onwards.

Maybe he used it as a mallet to split brace wood, and it is just still on the bench? Don't know, just an idea.

[Localele]

No worries Nick, I'll put the kettle on for smoko.

[nnickusa]

Stopped over to Michael's this morning. I must say, the rosette cutter is a really nice bit of gear. I think one of those will be coming to live in Brunswick Heads when available.

I was also impressed with the "item once known as a gramil," Looks like it will provide a nice clean score to delineate the rabbet for the bindings and purflings....

Both pieces are really well-made and feel very solid in hand, not cheap.....

One day when I've got the $550 to spare, one of Michael's aluminium bench vises will also be getting a new home. It's beautiful and really well-made....

[Bachiano]

"bench vises"

Please give me a link

[Localele]

http://www.michealconnorwoodwork.com.au ... nches.html

[Clancy]

Hey Michael,
Not trying to seem like an impatiant bratty kid, but you've had nearly 3 more weeks and, damn it, "I want my rosette cutter!"

Seriously though, how is the development poceeding? Do you have a release date in mind? And have you nutted out the cost?

No pressure.....

[Localele]

Been doing some other things Craig and have also redesigned the whole thing for an easier to build but maybe even better "Improved Rosette Cutter MK2". It is on my list today to make some new prototypes.Exciting stuff really.
Ground up a few different 5mm blades for taking out the waste and got a nice one that will peel a spiral shaving the whole way around in one pass with little to no tear-out across the grain.Tricky little suckers to grind up initially though. Without revealing too much it is ground into the end of a piece of HSS bar stock with a 30 deg. skew with a 45 deg. cutting angle and 7 deg. clearance. Deviating much from those figures causes a little bit much tear-out and not a continuos spiral shaving.
I'll try to remember to keep you informed.

[Clancy]

...with a 30 deg. skew with a 45 deg. cutting angle and 7 deg. clearance. Deviating much from those figures causes ...

Glad it's not going to be complicated

Keep having fun Michael - we're all going to benefit.

[Bachiano]

Updates ?

[Localele]

No progress to report apart from some product evaluation with Liam and Allen up here in Cairns.
Allen and I have been teaching a Ukulele Building class this week and it has been fun. We actually had all the students cut their own sound hole with the Rosette/Soundhole cutter and it performed perfectly.No tear-out even on the Western Red Cedar tops.
I will be picking up some more brass on the way back through Brisbane for building cutters.

[Localele]

Hi Everyone, No excuse but these photos are part of the hold-up on the rosette cutters. My new Universal Tool and Cutter Grinder. Being able to hand grind a blade for myself is one thing but getting a result on a batch of blades is completely different. The geometry in the little blades is quite complex to grind accurately and repetitively.
To some this may look like overkill but I assure you it's not.This has more angle adjustments than you can poke a stick at and is a steep learning curve.It is big enough for surface grinding , cylindrical grinding and sharpening anything in the shed.With the hydraulic power pack it weighs in around 1400 kgs of lovely Russian cast iron. The manual is interesting.
The other hold-up is for some very fine taps and dies which were posted from England on the 3rd and still aren't here yet.

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[charangohabsburg]

Wow, that's a cool piece of machinery!

I hope you expect a great number of orders or this improved rosette cutter will get a bit expensive.

lovely Russian cast iron. The manual is interesting.

Does this mean you are learning Russian right now?

[Localele]

No Markus ,Russian is not something you could learn by looking at it.
Cost of the machine has no bearing on the price of the Rosette Cutters.It is just the ultimate sharpener for all tools.

[charangohabsburg]

No Markus ,Russian is not something you could learn by looking at it.

Certainly not, but it would have been "interesting"!

Cost of the machine has no bearing on the price of the Rosette Cutters.It is just the ultimate sharpener for all tools.

That sounds cool. Not because of the price of the rosette cutter but imagining that you take your chisel to this machine instead of the two or three sharpening stones or maybe a Tormek is just, hmm, yes: cool.

Cheers,

[Clancy]

Interesting piece of hardware.
Kind of looks like a metal lathe but I can't really make heads or tails out of it.

Does it brew up the vodka too?

[Localele]

Your not the only one Craig. It has so many adjusters it is confusing. Got to love it when the table adjustment for angles is marked down to 10 Minute intervals rather than degrees.

[Nick]

One thing I love about the old eastern block machinery is that they don't skimp on metal, a little rough on execution in places but they work and work well & will still be doing that in 200 years time! Nice buy Micheal.

[simso]

If you need help in using it, let us know, I have the modern version of that machine

[Localele]

I would like to have a chat about it Steve. There is plenty to learn. PM me your number and a suitable time and I'll give you a ring.

[Kim]

Michael,

Looking at the white wheel in the image above I can't say whether they would fit or not. But around a month ago I was browsing a local salvage yard and picked up a 5" x 1/2" x 5/16" bore 'Dean Abrasive Products' white stone with the idea to manipulate it onto my old GMF dental lathe.

They had a 'heap' of them on shelf which they acquired from a liquidation auction. They were marked at $5 each, covered in dust as was the shelf they were sitting on so they had not been moving many. I offered $2 and they were happy to take it confirming they had been sitting there for years.

Quite possibly with 5/16" arbour they're probably too small for your machine, but if you 'can' use a dozen or so, let me know and I will go and check them out again as the yard is only a couple of K's away.

Cheers

Kim

[Localele]

Thanks for the offer Kim but it has a 32mm spindle.

[Kim]

Yeah I had thought as much when I looked at the image Michael but thought it possible most of that metal was retainer so I asked just in case. Nice bit of iron though mate.

[funkytwang]

After reading this thread I got all inspired and decided to make a rosette cutter. Sorry, couldn't wait for that beautiful piece of brass machinery to hit the market.

Up till now I used a Dremel with a crude perspex base plate that I attach to the Stew Mac router base. I was never happy with it - adjustments were painful and time consuming.

So, here are some pics of what I built and what it does. I used some Lexan (polycarbonate) pieces I had. They slide using 2 perspex "rails" I inserted into one side with tracks cut in the other. Blades made from an old power saw blade. I made a scraper blade also. The brass comes from an old hinge and provides micro adjustment. The routed rosette slot is very clean - no tearout. Adjustment is easy and the process was pretty quick. The only problem I had was that the rosette itself seems to be smaller than the routed slot. It took 2 attempts to get the right size.

Paul

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[simonm]

The screw for adjusting the radius is just what is missing on the cheaper commercial ones like the lmii one I have. Very nice.

[Localele]

A few photos to explain the delay in the new tool. A total redesign but a much better tool as a result. I have to do the blades yet but will start them tomorrow.It will come with a knife blade , a 5mm wide inlay blade and a 30.thou. inlay blade ( for BWB lines).
At this stage the final cost is not worked out but I thought you guys might still like an update.

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