John Andruss on sun 25 apr 99
Last Fall, I bought a Brent Extruder for my classroom because I have
seen many of them in operation years after their purchase. As of this
message, mine is totally useless, because the U-bolt slips on the
vertical pipe when the least amount of pressure is applied down on the
lever. I have been careful to use clay that is slightly softish and
still, the upright pipe and the U-bolt surfaces are practically glazed
smooth. I was
thinking of roughing them up with a grinder or simply notching them so
the U-bolt would grab instead of slipping, but I thought I'd wait and
see if the greater wisdom of the list had encountered such a problem and
had any solutions.
Things are finally warming up in Las Vegas. Oh well...
--
John Andruss
jandruss@lvcm.com
David Hendley on wed 28 apr 99
At 10:19 AM 4/25/99 EDT, you wrote:
>----------------------------Original message----------------------------
>Last Fall, I bought a Brent Extruder for my classroom because I have
>seen many of them in operation years after their purchase. As of this
>message, mine is totally useless, because the U-bolt slips on the
>vertical pipe when the least amount of pressure is applied down on the
>lever.
Do you have access to a welder, John?
Two options:
1. Take off the shackle and weld a little bead on the inside surface, or,
2. run a bead down the lengeth of the upright pipe.
I like the idea of ADDING more metal, rather than grinding away
material to rough-up the surfaces. You can then grind off part
of the weld if it's too much.
Option #2 sounds pretty radical, but I've done it, and it
works. Still, I would try to work with the shackle first.
BTW, I still like the "shackle" system more than the "notched"
system on some extruders.
David Hendley
Maydelle, Texas
hendley@tyler.net
http://www.farmpots.com
At 10:19 AM 4/25/99 EDT, you wrote:
>----------------------------Original message----------------------------
>Last Fall, I bought a Brent Extruder for my classroom because I have
>seen many of them in operation years after their purchase. As of this
>message, mine is totally useless, because the U-bolt slips on the
>vertical pipe when the least amount of pressure is applied down on the
>lever. I have been careful to use clay that is slightly softish and
>still, the upright pipe and the U-bolt surfaces are practically glazed
>smooth. I was
>thinking of roughing them up with a grinder or simply notching them so
>the U-bolt would grab instead of slipping, but I thought I'd wait and
>see if the greater wisdom of the list had encountered such a problem and
>had any solutions.
>Things are finally warming up in Las Vegas. Oh well...
>
>--
>John Andruss
>jandruss@lvcm.com
>
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