jamesp
Cave Dweller 
Member since October 2012
Posts: 36,612
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Post by jamesp on Nov 30, 2017 8:45:10 GMT -5
Using Dremel and cutting wheel reduced in diameter by running cut-off wheel against grinder till cut-off wheel is exact size. I dig the threads deeper. the threaded clamp is used on the rock clamp. and it is best to tighten your rocks tight which can damage the threads. Has to be done about every two years. Covington 18" saw.  |
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Post by youp50 on Nov 30, 2017 13:58:03 GMT -5
I have done this on piping tool called a T puller. It takes more force than a rock saw to operate. I also needed to remove some metal on the split nut faces. (Where the two halves meet.)
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Post by toiv0 on Nov 30, 2017 19:43:43 GMT -5
I have one to do now also, just finished on my 24 inch but haven't tried it out yet.
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Post by Rockoonz on Dec 1, 2017 0:05:13 GMT -5
jamesp why not chase with a tap?
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426 
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Post by notjustone on Dec 1, 2017 0:42:21 GMT -5
jamesp why not chase with a tap? you could by putting it on your threaded rod and stacking feeler gauges then removing some of the feelers and clamping it in vice and running tap through. |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,612
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Post by jamesp on Dec 1, 2017 5:13:56 GMT -5
jamesp why not chase with a tap? you could by putting it on your threaded rod and stacking feeler gauges then removing some of the feelers and clamping it in vice and running tap through. jamesp why not chase with a tap? Set gap - clamp - chase That would be the best way by far. Tap is on shopping list. Thanks. |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,612
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Post by jamesp on Dec 1, 2017 5:23:15 GMT -5
I have one to do now also, just finished on my 24 inch but haven't tried it out yet. Sure would be an improvement if these thread clamps clamped 16 threads instead of 8 threads for the vice. Or used ACME threads for the vice. |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,612
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Post by jamesp on Dec 1, 2017 5:24:48 GMT -5
I have done this on piping tool called a T puller. It takes more force than a rock saw to operate. I also needed to remove some metal on the split nut faces. (Where the two halves meet.) T-puller ? Do you know what company makes it. |
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Post by youp50 on Dec 1, 2017 6:52:09 GMT -5
I have done this on piping tool called a T puller. It takes more force than a rock saw to operate. I also needed to remove some metal on the split nut faces. (Where the two halves meet.) T-puller ? Do you know what company makes it. T Drill also Milwaukee makes one. |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,612
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Post by jamesp on Dec 1, 2017 7:09:37 GMT -5
T-puller ? Do you know what company makes it. T Drill also Milwaukee makes one. Does it clamp threads using this type of arrangement ?  |
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Post by youp50 on Dec 1, 2017 8:31:06 GMT -5
No. It uses a split nut.
Drills a hole. Shift to slow speed. Extend two little rods. Engage split nut. Run the drill to extract the rotating rods and pull a collar on the main pipe. Prep the branch line and braze the two together. BCuP 5 filler is preferred. Higher silver content makes it less finicky about interstitial gap.
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Post by nowyo on Dec 1, 2017 11:18:10 GMT -5
I just run a tap through it every couple of years. Set gap, take your time.
Russ
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Post by Rockoonz on Dec 1, 2017 12:26:54 GMT -5
I wonder how hard it would be for Covington to spend a couple more bucks and use decent bronze instead of easy machine soft brass?
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Dec 1, 2017 17:46:28 GMT -5
I wonder how hard it would be for Covington to spend a couple more bucks and use decent bronze instead of easy machine soft brass? Diamond Pacific makes the split nut feed dog for older Frantom. I believe it is bronze not brass. Can be done for sure. |
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