Use of epoxy for levelling

[Boyan Silyavski]

If you have read carefully my build, and implemented the technique i suggested that would not have happened. Epoxy shrinks and that is life.

Read from post #77 on, or jump directly at the solution. i think i should write an epoxy guide and make it sticky. As i already paid the price to learn/~6kg of wasted expensive epoxy, 2 pours wasted for learning purposes , so no need for others to repeat the mistakes.


Your epoxy shrunk at the bridge, cause the bridge shrunk lengthwise and sucked the epoxy from the center of the rail. Thats all.
I confirmed that in my build by calculating the given shrinkage of the epoxy, calculating the volume, length and so and it gave me as a result the exact shrinkage that happened.


One thing more. The glass transition temp of WS is 50C. So take care for direct sunlight in summer not to fall onto the epoxy, especially with heavy gantry. It will f^^ck up. I made some experiments and it becomes like a chewing gum quite fast. Faster than i liked.

[njhussey]

If you have read carefully my build, and implemented the technique i suggested that would not have happened. Epoxy shrinks and that is life.

Read from post #77 on, or jump directly at the solution. i think i should write an epoxy guide and make it sticky. As i already paid the price to learn/~6kg of wasted expensive epoxy, 2 pours wasted for learning purposes , so no need for others to repeat the mistakes.


Your epoxy shrunk at the bridge, cause the bridge shrunk lengthwise and sucked the epoxy from the center of the rail. Thats all.
I confirmed that in my build by calculating the given shrinkage of the epoxy, calculating the volume, length and so and it gave me as a result the exact shrinkage that happened.


One thing more. The glass transition temp of WS is 50C. So take care for direct sunlight in summer not to fall onto the epoxy, especially with heavy gantry. It will f^^ck up. I made some experiments and it becomes like a chewing gum quite fast. Faster than i liked.

50 degree C.....In the UK hahaha........not likely