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My team can get pretty jealous of southerners who love to post their photos of practising or testing outdoors, even in January. Last night, we finally found an advantage to the cold.
We were sanding a delrin bushing down to perfection. Although material was clearly coming off, subsequent measurements showed that the bushing was staying the same size or even getting larger. A quick calculation showed that heat generation was causing it to expand the few thousandths of an inch to make the difference. A simple solution was found right outside our shop door.
Discussion
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18-01-2015 01:46
asid61
Re: pic: S'no problem
Clever use of your resources. Machining delrin to a nice finish is tricky, but it can be done. Is that why you are sanding, to get a better finish?
If so, then guiding the inevitably long/ stringy chip away from the cutter to prevent it from wrapping works well. No need to move to sanding.
Remember to remove the water from the lathe!
18-01-2015 02:19
Caleb Sykes
Re: pic: S'no problem
This makes me happy. Every time I hear about a southern team working outside, I get jealous. But none of those teams would be able to use this solution, so maybe us northern teams aren't so bad off after all. 
18-01-2015 02:48
VioletElizabeth
Re: pic: S'no problem
And over here on the West Coast, I find the North/South divide bizarre! It's all (comparatively) warm here, from Seattle to San Diego!
18-01-2015 12:32
Bryce Paputa
Re: pic: S'no problem
We do this all the time to keep our drill bits cold when doing tons of cheese holes, and along with a little cutting oil, it works great.
18-01-2015 13:24
Dunngeon
Re: pic: S'no problem
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Originally Posted by VioletElizabeth
And over here on the West Coast, I find the North/South divide bizarre! It's all (comparatively) warm here, from Seattle to San Diego!
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18-01-2015 15:05
VioletElizabeth
Re: pic: S'no problem
I checked the Seattle weather, it was 55F at 11pm.
20-01-2015 17:39
cjl2625
Re: pic: S'no problem
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Originally Posted by VioletElizabeth
I checked the Seattle weather, it was 55F at 11pm.
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How is that possible? Connecticut is considerably farther to the south than Seattle, but I'm still inside my house freezing inside a winter jacket.
20-01-2015 18:04
orangemoore
Re: pic: S'no problem
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Originally Posted by cjl2625
!!!
How is that possible? Connecticut is considerably farther to the south than Seattle, but I'm still inside my house freezing inside a winter jacket. |
Seems possible to me.
21-01-2015 14:18
Ghost_Pack
Re: pic: S'no problem
Hey we have problems down here too. The massive Florida humidity causes our drill bits to rust out within a single season, and it wreaks havoc with PLA and nylon filament. The extruder on our printer practically steams with all the absorbed moisture.
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