TSO Products said:if accuracy is important you may want to take a really close look at the Parf Guide System, 20mm Centrotec Carbide cutter is included.
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Bert Vanderveen said:The bushings that are part of the product have to be used with a 1/2 inch cutter. Those are very hard to find for a 12 mm collet, and even more for 8 mm collets (I did a search w four suppliers in Europe and did not find any). The cutter is NOT included in this set, so that too is an additional cost…
HarveyWildes said:TSO Products said:if accuracy is important you may want to take a really close look at the Parf Guide System, 20mm Centrotec Carbide cutter is included.
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My experience with the Parf Guide System is that it is so accurate it's spooky (Halloween is coming), and I heard a lot about the accuracy before buying it myself. The problem with the OTT approach is that it makes it hard to get feedback from the early adopters on just how accurate it is before you commit to buy one. One the other hand, if you need 3/4" holes instead of 20m holes, and 96mm centers are OK, it might be interesting (instead of boring... I didn't just really cave into that obvious pun, did I?).
Tony from Pandora said:I didn't realize how hard 1/2" was to come by in metric shanks.
I agree on error propagation. That template is a bit small. about 6 x 7 holes would be good.Peter Parfitt said:The problem with this type of jig is that a minor error in the first set of holes becomes a bigger and bigger error as the pattern progresses.
A copy of the original MFT top with a pattern bit will match that accuracy.Peter Parfitt said:I have yet to see anyone produce a genuine 4 cut test video of any product that can come anywhere near the accuracy of the PGS.
With plunge cutting it is hard to avoid tear out on the opposite side.Timtool said:It seems far more precise to drill them with a 20mm or 3/4th cutter that you just push down in one go, I have always done it this way. It's easy and accurate.
Bert Vanderveen said:The bushings that are part of the product have to be used with a 1/2 inch cutter. Those are very hard to find for a 12 mm collet, and even more for 8 mm collets (I did a search w four suppliers in Europe and did not find any). The cutter is NOT included in this set, so that too is an additional cost…
Svar said:....
A copy of the original MFT top with a pattern bit will match that accuracy.
Does it matter what they not claim? It happen to be made on CNC or some line boring machine or whatever. Intended or not the holes are equidistant.Peter Parfitt said:Festool make no claims whatsoever about the accuracy of the 20 mm hole spacing on the MFT3.Svar said:....
A copy of the original MFT top with a pattern bit will match that accuracy.
Svar said:Does it matter what they not claim? It happen to be made on CNC or some line boring machine or whatever. Intended or not the holes are equidistant.
You don't know that.Peter Parfitt said:If it is not in the specification for the sub contractor making the MFT3 tops then they do not need to worry about accuracy.Svar said:Does it matter what they not claim? It happen to be made on CNC or some line boring machine or whatever. Intended or not the holes are equidistant.