1. I use core electronics for most of the electrical items as they provide a very quick service, but Ebay or your local jaycar or radioshack should...

2. Lets start with the easy stuff, hopefully this is not the first time you have used a 3D printer and your familiar with how to remove the raft an...

3. The bearing holders are also easy to print and the raft comes off easily. Most printers print holes around 1-2% under-size so the the hole for t...

4. The rod holders are used to hold the threaded rod in place and gives the acrylic some rigidity and provides somewhere to mount the back and fron...

5. The Linear bearings listed on step one have an OD of 21mm and an ID of 12mm. Just remove the raft from the mount and inside the hole and fit the...

6. The anti backlash nut is fitted to the led screws and ensures the machines accuracy, by removing any end play from the nuts that move the X Y an...

7. This is a fairly large print, I found it prints well on its side as shown in the photo, its designed to fit a 36mm motor which are quite commonl...

8. The tool slide is one of the larger prints, so care need to be taken that the printer is hot and in a draft free environment before you start. I...

9. The Z axis is the largest and most difficult print. Print flat with the large holes at the bottom, and don't do what i did on my first attempt.....

10. The stepper motors are NEMA style motor and need to have 4 wires (bipolar) and a 5mm shaft. The mounting hole spacing is 31mm and they have a 1...

1. INSPIRATIONBefore starting I analyzed some of the existing projects and I particularly appreciated the works of Nikodem Bartnik and Topsie, whom...

2. FUSION 360: FRAME DESIGNI have been using Fusion360 for hobby purposes for 5 years now and it has been of help to me on numerous occasions; ther...

3. I am currently developing a custom electronics for the G300 management which consists in the coupling of two separate Arduinos. The first manage...

4. REQUIRED TOOLSThe main tool used is a 3D printer, with which all the main elements of the G300 will be made; a print surface of 20x20cm is requi...

5. PRELIMINARY NOTESStrangely my Nema23 had ø4mm threaded holes and I thought it appropriate to widen the hole with a ø4.5mm tip and then make a ne...

6. I have included the images of the electrical connections; I'd like to point out that I have connected the limit switches NC in series, so that i...

7. UPLOAD GRBLCurrently the latest released version of GRBL is 1.1h which introduced automatic squaring, which will be used in this project, using...

8. CHECK: MOTORS & END STOPWith the control software I verify that the 3 axes are moving in the right direction, otherwise it can be corrected...

9. I designed the G300 to be a modular machine, for now I have developed the cutter brackets with a diameter of 65mm (for Makita rt0700c, Katsu, et...

10. My configuration for aluminum3mm bit with 1 fluteXY feed rate: 500mm/minZ feed rate: 200mm/minZ step: 0.25mm (can be increased)