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Posted
1 minute ago, Ron Dudelston said:

September has vaporized just like August and the leaves will be falling in the Midwest sooner than I like to think. 

Boy it sure flew by, and thanks goodness! The heat was getting really old. We had a nice cool week last week, this week is supposed to be summer again, then back to cooling off. Little hiccups of summer will show up through mid October in these parts, then by end of October, cool sailing till next June!

I bet that cradle is going to look beautiful Ron!

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Posted

Still doing rifle cases. Methinks my artistic (?) visions have overwhelmed my limited skill set. Oh well, it's all fun.

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Posted

As for weekend...nada done...we experienced record breaking temperatures ~94o plus the last three days with a couple more in the works...too hot for shop work...need to finish up some mowing...three volleyball matches on tap for the week plus a tourney next Saturday and the usual daily transportation services. There may be some garage activity after Wednesday with a cool down forecast on the way.

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Posted

I had to work Saturday - a little side job that could not be done during the week. In the shop, I finished wiring all of the last circuits I installed into the box and closed up the wall above the box. I closed up the last section of ceiling on the 2nd half of the shop (I needed the access to get the exhaust fan in) and laid out for the locations of the new light fixtures. Also, a trip to HD to get the fixtures and paraphernalia for the fixtures. Hopefully, I will get the lights up this week since DEER SEASON starts on Saturday. Hunting may not be to good this weekend as it is supposed to warm up to the high 80's/low 90's.

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Posted

Worked on making a form to bend some 3/8" polycarbonate on. Will heat form it using our 3x8' oven this week.

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Posted (edited)
2 hours ago, Larry Schweitzer said:

Worked on making a form to bend some 3/8" polycarbonate on. Will heat form it using our 3x8' oven this week.

 

too much heat will degrade and cloudy the polycarbonate..

bending too cold will craze and micro fracture the poly..

polycarbonate is nick sensitive..

keep in mind that polycarbonate is hydroscopic and must be predried before forming.. 3/8'' will take 15~20 minuets before you start your processes...

sharp angle bends are done w/ a heat strip..

most bends are done w/ a heat blankets on both sides....

larger forms are done in an oven and a male/female mold plus vacuum....

140°C is pretty hot for ploycarbonate... it will plasticize at a very thin threshold...

do not water or air cool...

edging is done w/ progressive sanding to extra fine wet/dry or finer and finished by fuming w/ MEC..

 

search ''shaping GE Lexan manuals''

Edited by Stick486
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Posted

Yup, been there. Worked in a sign shop long time ago. We did quite a lot of Polycarbonate, tough stuff. I've got a 5x10 vacuum table attached to a 40hp Quincy pump (shared with the router.) Have made a male/female mold for this job. The stuff has a short working time. Good to have lots of vacuum flow. The cloudy comes from the moisture trapped in it. If you soak it @ about 200F for a couple of days you drive that out and it remains clear. You can see the vacuum table in the center of this image. (Red edge) There is a grid cut into the table top and the frame (black) lowers the urethane membrane over the work and is clamped to the table.

_DSC8441.JPG

Posted

Allen, your back yard looks naked now.

Posted

@John Moody...AWESOME!!! Blessings to all of you for sharing & caring, planting a seed and taking time to make a difference.

 

Making a field trip to the sawmill might be a fun learning experience too for these little guys especially with a stop at the ice cream shop afterwards.:)

Posted

@John Moody - AWESOME project. Hopefully that project will help these kids, in many ways.

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Posted
9 hours ago, Grandpadave52 said:

 

 

Making a field trip to the sawmill might be a fun learning experience too for these little guys especially with a stop at the ice cream shop afterwards.:)

 

I like your thinking @Grandpadave52 Especially the ice cream part. ;)

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