CNC Making of – Reinforcement of the structure

Hi guys! After having analyzed a little more in detail the program that controls the machine, it’s time to think about reinforcing a little bit the whole CNC structure.

Until now, the machine looked like this:

but when it works it has some stability problems and vibrates a lot along the Y-axis. So I had to study a way to make it more stable and increase its performance; remaking it in metal would be the best thing, but for the moment I prefer to improve what I already have… there’s always time to make a new one! 😋.

Side supports

After observing the parts that seemed to be weaker, I noticed that the side supports had to be reinforced because they vibrated a lot during the carving phase.

So I thought to add two wooden reinforcements on the back of the CNC and fix them to the two side supports to limit the movements due to vibrations.

Bars

I also saw that the 8mm round steel bars forming the X-axis and Y-axis flexed a lot when the machine was running…

then I replaced them with aluminium square profiles that are much stronger.

Conclusions

At this point, the machine looks like this:

These integrations have made it possible to make the CNC more stable and therefore the machining operations are more precise.

Although there are still some improvements to be made, I must say that I am very satisfied with the progress I have made by adding these reinforcements to the structure.

Now that the CNC has been reinforced I can concentrate on my first real project… stay tuned!