Book of Fail - Chapter 1

No matter how much effort is put into a project, it seems to always be a sequence of various degrees of fail until finally success is achieved. Fails should not be forgotten so here's a progressive record of their history...

Tevo Z Axis Upgrade

A lot of time has been spent to model the Tevo in Fusion 360 in the vain attempt to minimise mistakes. Started to implement parts of the upgrade just to see if things fit - according to the model it should work.

Raising up the Z axis to its limit to test the extreme limit showed an error that I had never thought of - the Z Axis drive I installed was fouling the bowden cable. It was a design that was just not going to work. Just goes to show that models have to be complete down to the very last item otherwise. It's always the bits left out that cause problems..

Back to the drawing board to try a few other layouts. Lucky I did because I thought the belt I purchased was 950mm long but in reality it was 852mm. The design was never going to work! Once again, an assumption leads to grief.

The new stepper position seems to work OK and correctly fits the belt length and is actually a simpler design although it's a little gangly.