Now that all the major modifications had been made to the movable gantry cnc machine, the final part was to calibrate and tram the z-axis again. As a recall, the work being done as major modifications were: The z-axis housing […] ↓ Read the rest of this entry…
The Y axis for the movable gantry cnc machine was originally designed to be driven by GT2 timing belt. However, the results obtained after undergoing detailed 2.5D scanning parallel cuts showed that the tool tended to lag when it encountered […] ↓ Read the rest of this entry…
This is a continuation of the improvement in the Z-axis for the movable gantry cnc machine. The previous post was about making a more accurate vertical z movement by changing the Z housing from one made of MDF to another […] ↓ Read the rest of this entry…
Taking note of the findings after rough tramming of Z-axis on the Movable Gantry CNC Machine, I decided that the Movable Gantry Z-axis drive mechanism needed a major makeover as there were too many inaccuracies. These inaccuracies came about because […] ↓ Read the rest of this entry…
For the movable gantry cnc machine, it was rather easy to notice and to adjust the X and Y axes so that they become perpendicular to each other. The movements of the tool would be rather large and would be […] ↓ Read the rest of this entry…
My Movable Gantry CNC Machine has already had T-nuts in place at the baseboard. What the machine needed now were holding down clamps. With the holding down clamps, I would be able to machine thicker objects instead of using double […] ↓ Read the rest of this entry…
When I am cutting materials by hand for my projects, a lot depended on whether I can mark out the designs accurately, particularly the right angles. I have a cheap engineer’s square (L-square) which I used for my projects, which […] ↓ Read the rest of this entry…
I had been experiencing several incidents of lost steps in the movable gantry cnc machine and I had been going through all the root cause analyses to find out the cause(s). Apparently, there were a few causes for these and […] ↓ Read the rest of this entry…
The timing belt mechanism for the Y-axis drive was constructed in such a way that there was a loop over an idler roller to ensure maximum engagement of the teeth of the stepper motor pulley with the belt. This arrangement […] ↓ Read the rest of this entry…
As I was planning to move the movable gantry cnc machine to my house in Butterworth, I had to consider how to fit it in place at the new location. The movable gantry cnc machine had to be placed at […] ↓ Read the rest of this entry…