CNC3018 Test CNC Construction

Test CNC Construction

• MDF material 5.6 mm thickness
• 400 mm/min feed rate (Fxy)
• 100 mm/min depth rate (Fz)
• 1.5875 mm milling bit in reality
• +0.55 mm adjustment recomented
• 2.1375 mm milling bit in CAM software

The CNC3018 router is not 100% accurate. The cutter has a diameter of 1.5875 mm, but it also moves slightly outside the ideal cutting line. This results in more material being removed around the cutter in reality and increasing the diameter.

In order to produce an almost exact workpiece, a larger radius, e.g. 2.14mm instead of 1.58mm, must be entered in the CAM software. The CNC machine places the cutter 1.07mm away from the cutting line and the friction of +0.275mm removes the material at the desired ideal line.

For the construction of machines, it is important that there are no gaps at joints and that holes are not too large. The test object consists of two parts and a connection with a screw and a hole for an 8mm rod.

Add 0.05 to 0.70 mm to milling bit in CAM software to adjust real cutting. You can use the different GCODE-files to test different adjustments. The two parts and a 8mm rod should fit perfect.

TCCD05_Test-CNC-Construction_Add0-05_D1-6375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD10_Test-CNC-Construction_Add0-10_D1-6875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD15_Test-CNC-Construction_Add0-15_D1-7375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD20_Test-CNC-Construction_Add0-20_D1-7875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD25_Test-CNC-Construction_Add0-25_D1-8375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD30_Test-CNC-Construction_Add0-30_D1-8875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD35_Test-CNC-Construction_Add0-35_D1-9375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD40_Test-CNC-Construction_Add0-40_D1-9875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD45_Test-CNC-Construction_Add0-45_D2-0375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD50_Test-CNC-Construction_Add0-50_D2-0875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD55_Test-CNC-Construction_Add0-55_D2-1375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD60_Test-CNC-Construction_Add0-60_D2-1875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD65_Test-CNC-Construction_Add0-65_D2-2375_Z0-41_aZ90_Fxy400_Fz100_S8000-8000
TCCD70_Test-CNC-Construction_Add0-70_D2-2875_Z0-41_aZ90_Fxy400_Fz100_S8000-8000