Originally Posted by
catmix
Hello CNCers.
I am a Civil engineer by profession, so i understand mechanics principles but have poor practical knowledge of machine building.
Design
I have designed my model based on the following criteria:
-Machine must be upgradeable (no welding / fixed connections)
-use available sections/materials
-1200 x 900 x ~150mm cutting zone
-High mechanical soundness
I followed similar design principles and leveraged off my background which is IT which has principles leveraged off engineering.
There is a field within IT called object orientation (OO) which formalises modularisation.
During my design / build, I created simple modules that in turn assemble into complex modules. Through discrete sub assemblies, I concentrated on the role that each sub assembly played in the overall schema knowing that I could ultimately replace / upgrade and consequently introduce systematic improvement.
For example, I made the truck with the skate bearings a discrete sub component which is distinctly different from the sub assembly that holds the Y rails and distinctly different from the motion assembly.
When I replace the skate bearings with higher quality componentry, the re-work impact on the machine is minimal.
Each part exists in its own right and can be replaced.
Each part is bolted together into a rigid finished assembly but I did weld the basic components as it adds so much strength.
As each part is removable, I can then utilise the part elsewhere if required.
I found design to be the most fascinating part of the entire project and occupied my mind for many enjoyable days stuck in traffic....lol.
I'm happy to engage in this conversation but it is also your own adventure.
Start with the base principles of engineering and then leverage.
Andy
Drat, imperfection has finally stopped working!!