HF pressure pot clamp stripped - International Association of Penturners
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Casting & Stabilization Making your own blanks & stabilizing wood blanks.


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Old 11-23-2017, 02:21 PM   #1 (permalink)
 
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Default HF pressure pot clamp stripped

Just in time for the holiday rush! I have several blanks to cast and an extra day off, unfortunately one of the clamps stripped and after searching I've found it's a problem with them. I also learned that the part isn't available by itself anymore. I'll be replacing it with a CA technologies, but not until after Christmas. At least I have a small supply of blanks, but only two are large enough for mini bud vases, which are the bulk of what I need to make. I also have a fountain pen to make. I use Silmar so I'll be going to back to using vacuum to degas the resin and hope it works.
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Old 11-23-2017, 02:50 PM   #2 (permalink)
 
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How long have you had the pressure pot


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Old 11-23-2017, 02:51 PM   #3 (permalink)
 
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Interesting ... and disappointing
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Old 11-23-2017, 03:00 PM   #4 (permalink)
 
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Also how big are the blanks for a mini bud vases


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Old 11-23-2017, 03:13 PM   #5 (permalink)
 
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Bummer
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Old 11-23-2017, 05:52 PM   #6 (permalink)
 
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Quote:
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How long have you had the pressure pot


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I got it in January, so about 10 months of no more than light to moderate use at best.

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Also how big are the blanks for a mini bud vases


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I normally cast cylindrical blanks, about 2" diameter x 3.5" - 4.5" tall, but have made some with 1 9/16" diameter x 2.5" - 3" tall blanks. They're quick, fun little projects and have been a surprise hit for me.
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Old 11-23-2017, 05:53 PM   #7 (permalink)
 
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Interesting ... and disappointing
Disappointing to say the least. I knew it would happen though, the bolts never ran very smooth through the clamp. You get what you pay for...
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Old 11-23-2017, 06:45 PM   #8 (permalink)
 
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Couldn't put a nut on the bottom of the clamp and while holding the nut, thread a bolt in from the top and tighten it against the lid?
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Old 11-23-2017, 07:33 PM   #9 (permalink)
 
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I had one strip out, it took about 4 months on a fast boat from china to get a replacement. Order an extra, you won't ever need it, if you don't you will need it in 5 months.
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Old 11-23-2017, 10:33 PM   #10 (permalink)
 
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Quote:
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J I use Silmar so I'll be going to back to using vacuum to degas the resin and hope it works.
lots of new and experienced casters around but no one ever mentions this: The styrene in polyester resin will boil out at 28 inHg. When I used vacuum to degassing PR I never used over 27inHG for vacuum degassing PR just to be safe. Styrene is a thinning agent so having it boil off will thicken it. May or may not effect casting.
Do a good turn daily!
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