Iguanadon Posted August 21, 2019 Report Share Posted August 21, 2019 I have an odd, and very specific question... Who here uses Pegas clamps as shown (with the top tension lever for saws like Excaliber, Pegas saw...) AND use Pegas Modified Geometry #3 blades. Must be PMG#3 and must be Pegas clamp with the tensioner. I know, odd question, but I'm having an odd issue and am trying to pinpoint the problem and see if others have run into it as well. Thanks OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted August 21, 2019 Report Share Posted August 21, 2019 Hi Scott. I have an EX21 with the Pegas clamps. I use primarily Pegas #5 mgt but have used #3's also. Never had a problem. Quote Link to comment Share on other sites More sharing options...
Dave Monk Posted August 21, 2019 Report Share Posted August 21, 2019 I have a Pegas Scroll saw and use #3 blades. No problem here. ...what problem you having? OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
tgiro Posted August 21, 2019 Report Share Posted August 21, 2019 Running an EX-21 with the Pegas clamps. I've used plenty of the MG #3 blades with no issue. What seems to be the problem. Note - I do intarsia, so I'm not locking and unlocking one end the blade for a bunch of interior cuts like fret work folks do. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Iguanadon Posted August 21, 2019 Author Report Share Posted August 21, 2019 Thanks everyone, and anyone else that chimes in. I'm having an issue where the MG#3 slips out of the upper clamp, on a pretty regular basis which then of course breaks the blade. No matter how tight I try to tighten. I've tried roughing up the end of the tightening screw, I rough up the ends of the blade, etc. Very odd. At first I thought it was something with my Pegas saw but in working with the manufacturer and at their suggestion moving the upper clamp to my DeWalt, it was doing the same thing there. I just wondered if anyone else has had this same issue but it seems like I'm the oddball in the group. Nothing unusual for me. (Yes, the set screw is set properly, I know that's the first thing everyone will ask. LOL) OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
don in brooklin on Posted August 21, 2019 Report Share Posted August 21, 2019 You might want to ask Bob Duncan National Sales Mgr. He used to be a Scroll Saw Work shop and did all the machine reviews. He still hangs our on SSW forum. http://www.grobetusa.com OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
JimErn Posted August 21, 2019 Report Share Posted August 21, 2019 Scott, I had that problem when I first put on the pegas clamp and was using PMG #3, did all that you have mentioned, turns out it was the upper arm not being level with the table top. I did one other thing, I put a piece of metal to replace the blade (one piece top to bottom), brought the set screw up to the metal just barely, then tightened the wing nut clamp. Then I did the top one after that, I think that insurs that the metal substitute for the blade was plumb. Wilson142 and OCtoolguy 2 Quote Link to comment Share on other sites More sharing options...
Iguanadon Posted August 21, 2019 Author Report Share Posted August 21, 2019 9 minutes ago, don in brooklin on said: You might want to ask Bob Duncan National Sales Mgr. He used to be a Scroll Saw Work shop and did all the machine reviews. He still hangs our on SSW forum. http://www.grobetusa.com Thanks Don, I'm actually working with Bob and he's been very helpful. It was just today that we narrowed it down to the upper clamp after various tests and his engineering group asking me questions. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Iguanadon Posted August 21, 2019 Author Report Share Posted August 21, 2019 10 minutes ago, JimErn said: Scott, I had that problem when I first put on the pegas clamp and was using PMG #3, did all that you have mentioned, turns out it was the upper arm not being level with the table top. I did one other thing, I put a piece of metal to replace the blade (one piece top to bottom), brought the set screw up to the metal just barely, then tightened the wing nut clamp. Then I did the top one after that, I think that insurs that the metal substitute for the blade was plumb. Thanks Jim... to be sure I'm understanding, are you saying you adjusted the set screw so that it's barely showing into the opening? OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted August 21, 2019 Report Share Posted August 21, 2019 This sort of reminds me of back when we had ignition points in our car's distributors, they sold points files so that you could put a file between the two points with the spring pressure to hold them together. Then you could slide the file back and forth a few times to not only rough up the points but to align them parallel to each other. you might go to Napa or some other auto parts store and see if you can still buy points files. I was even thinking of buying one just to have around because they are flat on both sides and in alignment. Unlike regular files that are tapered sometimes. Just a thought. Quote Link to comment Share on other sites More sharing options...
scrollerpete Posted August 21, 2019 Report Share Posted August 21, 2019 I have Pegas Clamps on my Ex and never any problems with blades slipping, I agree with what Jim said about the set up of the upper clamp. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
JimErn Posted August 22, 2019 Report Share Posted August 22, 2019 14 hours ago, Iguanadon said: Thanks Jim... to be sure I'm understanding, are you saying you adjusted the set screw so that it's barely showing into the opening? Yes, just enough so the clamping area of the set screw is sticking out from the clamp surface. Poor sketch attached which hopefully shows the realtionship I'm odd I guess I have never tried to center the blade in the clamp slot. OCtoolguy and Iguanadon 1 1 Quote Link to comment Share on other sites More sharing options...
JimErn Posted August 22, 2019 Report Share Posted August 22, 2019 Ok I went out to the saw, some pics attached Iguanadon and OCtoolguy 1 1 Quote Link to comment Share on other sites More sharing options...
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