Wednesday, October 17, 2007
The long and the short and the tall
Hopefully you should be able to see a general improvement from left to right. My conclusion is that HDPE is not really suitable for extruded layered manufacture because of its high melting point and mold shrinkage.
More details in my blog: scaling-new-heights
Maybe we could calculate the resulting distortion and warp the model in the inverse way so that after it curls it is the right shape but I am not sure whether that is even theoretically possible, let alone practical.
If we find out 60 degC is warm enough, thats just twice the difference in temperature to my room as from my kitchen to the inside of the fridge. Cooling is much less efficient than heating, so it wouldn´t be more expensive than having a second fridge at home. And the reprap doesn´t run 24/7. All you need is good insulation.
Anybody got an old fridge to spare?
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