Hello, my name is Marcelo, I’m from Brazil and I decided to start here my construction diary. First of all I would like to congratulate Ryan on the project, which is incredible!!! The LowRider 2 will fulfill my dream of having a CNC that cuts a whole sheet of material. In Brazil, a machine with this capacity, ready for use costs something around $ 5,000. Impossible for me right now.
I will briefly summarize what I intend to do with the machine. I work making kayaks and stand up paddles. The sheet of plywood that I use are 4mm thick (0.15 ") with a dimension of 2500mm by 1600mm (8.2’ x 5.24’). I have space available and I will make a machine of this size on the X axis, even though I have read a lot about the advantages of making it smaller. I am considering that in the worst case I reduce the size of it and move on!!
Unfortunately the freight to Brazil is prohibitive and I will not be able to buy Ryan’s parts so I started to make purchases of materials from china yesterday. I had at home an Arduino Mega 2560 board that was iddle, so i put the firmware in! So I already have the “brain” of my LR
This morning I bought a pair of used roller skates for $ 8 that has 64mm wheels.
I have read numerous posts that have answered many of my questions but I still have some that I will list:
1 - I have available in my city 1" SS tubes with thickness of .059" and .078 ". Should I invest in the thicker one to improve machine stiffness?
2 - I am thinking of using the RAMPS 1.6 card with the DRV8825 drivers. Will I have to make any modifications to the firmware?
3 - How many drivers will be needed? I’m asking becouse from what I understood the Z-axis and Y-axis stepper motors are connected together serial in the same driver. It’s that correct?
4 - I bought these stepper motors https://pt.aliexpress.com/item/33014686367.html?spm=a2g0o.cart.0.0.69703c00fgYmSo what minimum amperage should my power source have?
The orders from china to Brazil take a life to arrive so what I have to show today is this.
But I will keep updating this diary as the pieces arrive.
Thank you very much in advance!!