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I bought a pipe beveler off of eBay; typical 12", cuts 7,8, 10 & 12. I layed the saddle on a 12" 0.219 wall pipe.at 12O'clock, the torch cones are the proper distance away from the pipe.As I progress through the cut, the torch gradually pulls away from the pipe, and at 6O'clock, I am roughly a 1/2 inch +/- away from the pipe, and as I carry on through, I return back to the top with proper cutting distance. Maybe the pipe could be slightly out of round? I'm thinking. Maybe In hindsight, before writing I probably should have measured the diamater top-bottom & side-side to verify measurements are same, but for troubleshooting, what else could it be? I am not using any spacers as this is a 12" beveler sitting in a 12" pipe. Nothing seems to be bent or improperly working. Maybe I should 'shim' up the front of the beveler a 16th so it will cut more straighter?
Reply:Run your beveler till the torch is at 6 o'Clock. Push sraight up and see if there is any slack on your ring. A used machine will sometimes be worn out and cut out of square. Shimming your dogs up with washers will help a little, too.
Reply:I'll give it a try; didn't think about using washers, that's a good idea! Thanks
Reply:Thorton-If this is a Mathey pipe beveler you need to use the spacers even on a 12" cut. The spacers are usually reffered to as "dogs" in the trade. The spacers used for the 12" cut are usually called 'wafer dogs/spacers" because the are so thin- about the thickness of a nickel. You need to use these on 12" pipe for the tool to cut square. It's the same with the Mathey # 2, 4"-8" beveler- in order to cut 8" you need the wafer dogs. You can purchase these directly from Mathey for about $50 and the spacers are the same for all machines. You could also likely fabricate some easily enough if you had the exact dimension of the thickness but a nickel or 3/32" will get you very close. Probably cheaper/faster to just order them from Mathey.
Reply:Originally Posted by pipeftrThorton-If this is a Mathey pipe beveler you need to use the spacers even on a 12" cut. The spacers are usually reffered to as "dogs" in the trade. The spacers used for the 12" cut are usually called 'wafer dogs/spacers" because the are so thin- about the thickness of a nickel. You need to use these on 12" pipe for the tool to cut square. It's the same with the Mathey # 2, 4"-8" beveler- in order to cut 8" you need the wafer dogs. You can purchase these directly from Mathey for about $50 and the spacers are the same for all machines. You could also likely fabricate some easily enough if you had the exact dimension of the thickness but a nickel or 3/32" will get you very close. Probably cheaper/faster to just order them from Mathey.
Reply:Oh wow, actually these responses definitely help alot because I was looking at the machine wondering how I was going to get it cutting properly, and I didn't even think about having that minimalist gap - I just took the saddle, put it on the pipe and figured that it would be good enough. Thanks everyone for the great info! This made my day!! |
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发表于 2021-8-31 22:18:11