arglebargle Posted December 14, 2011 Report Share Posted December 14, 2011 Hello all, Does anyone have a good source for up-spiral purfling bits for milling the channel? I've reached the end of the internet, and still no luck. (btw, the end of the internet is a sad and lonely place. ) Thanks! Quote Link to post Share on other sites
Oded Kishony Posted December 14, 2011 Report Share Posted December 14, 2011 http://www.harveytool.com/default.aspx MSC miniature end mills http://www.kodiakcuttingtools.com/ http://www.kodiakcuttingtools.com/productdisplay.asp?series=560 Oded Quote Link to post Share on other sites
arglebargle Posted December 14, 2011 Author Report Share Posted December 14, 2011 That should do it! Thanks, Oded. Quote Link to post Share on other sites
Oded Kishony Posted December 15, 2011 Report Share Posted December 15, 2011 what did you end up getting? Quote Link to post Share on other sites
Michael_Molnar Posted December 15, 2011 Report Share Posted December 15, 2011 I use these: http://www.microcutusa.com/ http://www.discount-tools.com/ http://www.vortextool.com/ http://www.onsrud.com/ Stay Tuned. Mike Quote Link to post Share on other sites
Don Noon Posted December 15, 2011 Report Share Posted December 15, 2011 eBay Quote Link to post Share on other sites
Michael_Molnar Posted December 15, 2011 Report Share Posted December 15, 2011 Don is right about eBay. I go there too for bargains. BTW, I use the purfling end mill sold by International Violins. It is made by Robb Jack (0.051"). The price is right too. Stay Tuned. Mike Quote Link to post Share on other sites
arglebargle Posted December 15, 2011 Author Report Share Posted December 15, 2011 what did you end up getting? I went with Kodiak Cutting Tools. The price seemed very good, and they had a huge selection of sizes. I got two each of 1.0mm, 1.2mm, and 1.3mm. But there were many sizes in between those. This is my first time not hand cutting my channel, so I'll let you know how it goes. Quote Link to post Share on other sites
Oded Kishony Posted December 15, 2011 Report Share Posted December 15, 2011 .051 " = ~1.3 mm Do you match the purfling? bigger/smaller bit? OK Quote Link to post Share on other sites
Michael_Molnar Posted December 15, 2011 Report Share Posted December 15, 2011 .051 " = ~1.3 mm Do you match the purfling? bigger/smaller bit? OK This works perfectly for the purfling I get from Karin Rost. Quote Link to post Share on other sites
arglebargle Posted December 15, 2011 Author Report Share Posted December 15, 2011 .051 " = ~1.3 mm Do you match the purfling? bigger/smaller bit? OK Yes. I went through my purfling stash and got three bits that matched the majority of what I use. The bit are 0.1mm smaller then the purfling. I figure that after I mill the channel and prep the purfling the fit should be just right. Better too tight then too loose. Quote Link to post Share on other sites
Oded Kishony Posted December 15, 2011 Report Share Posted December 15, 2011 Better too tight then too loose. Too tight can become a nightmare when the glue causes the groove to swell making it too small. Oded Quote Link to post Share on other sites
bmccarthy Posted December 15, 2011 Report Share Posted December 15, 2011 Hi, I'm curious to know which tool you're using. Is it one you made yourself or an off the shelf product. I particularly like the Darnton design http://darntonviolins.com/purflingmachine.php as it looks fairly straight forward to make and comfortable to handle. I ask as I'm at a similar stage, I have all the rest of the equipment , excluding the purfling bits and this tool. Brian Quote Link to post Share on other sites
Michael_Molnar Posted December 15, 2011 Report Share Posted December 15, 2011 I too find that squeezing purfling into a tight channel can be looking for trouble. The black strip will buckle, shear, and look uneven. I put in my purfling dry. Then following a tip from Darnton, I lift the end away from the corner such that the bee-stings are not disturbed. I squirt in a lot of glue into the open channel. I then push the end back into the channel and squeeze the glue toward the bee-sting much like a tube of toothpaste. If done correctly, the glue will ooze out around the bee-sting. Voila! Quote Link to post Share on other sites
Oded Kishony Posted December 15, 2011 Report Share Posted December 15, 2011 I use a roto-zip but I've also used a fordom tool. I made my own fixtures Quote Link to post Share on other sites
arglebargle Posted December 15, 2011 Author Report Share Posted December 15, 2011 A perfect fit is best. I use a disposable emory board cut to fit the channel to open it up as needed. This is the tool I made for the job. Like I said, It's the first time I've done it this way, so I expect some modifications will be necessary. We will see. Quote Link to post Share on other sites
Oded Kishony Posted December 15, 2011 Report Share Posted December 15, 2011 I would be looking at something like this or like this to make into a purfling tool. You would need to set it up with a variable speed foot pedal and of course you'd need to modify it for doing purfling. If you want to get a proven tool, not have to experiment or design something new you could buy Tom Croen's purfling tool. It's very well made, a proven well tested design. Oded Kishony Quote Link to post Share on other sites
Johnmasters Posted December 15, 2011 Report Share Posted December 15, 2011 "I use ......." Oded I buy the MSC ones. However, I believe these people drop-ship from various places. I would not be surprised if some of your other sources were the sources. One issue is precision. They come in .005" increments, but one should measure them with a micrometer. I have seen a spread of perhaps +/-.003 or even slightly more. But they last a long time and it is OK to throw out a few. Nominal 50/1000 for violin, 60/1000 for viola. Quote Link to post Share on other sites
arglebargle Posted December 15, 2011 Author Report Share Posted December 15, 2011 AND I ordered the bits yesterday and just received them in the mail today! Regular shipping. So that's good. Quote Link to post Share on other sites
Joshua Blevins Posted December 15, 2011 Report Share Posted December 15, 2011 I have alost an exact replica of Darnton's perfling tool. works great! Quote Link to post Share on other sites
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