CNC Router 3018 Pro X/Y Limit Switch Upgrade

thingiverse

The CNC router from China commonly referred to as *3018 Pro CNC Router* is relatively affordable and can be upgraded fairly easily. This machine will help you install limit switches which prevent damaging the device by crashing it. This device is designed for use with the *Pro* version, made of both extruded aluminum and CNC routed plastic parts. The standard version is mainly made of extruded aluminum. While this might work with both versions, I don't have a standard version to test it with. For Z Axis upgrades see: https://www.thingiverse.com/thing:3663872 #3D Printed Parts# Qty 2 - X-Axis Limit Switch Holder V2.STL Qty 2 - Y-Axis Limit Switch Holder V2.STL Qty 8 - T-Nut V2.SLDPRT #Limit Switches# Qty 4 - Limit Switch model: V-153-1C25 Micro Limit Switch Long Straight Hinge Lever Arm SPDT Snap Action https://www.amazon.ca/gp/product/B07DGX5Q1Q/ https://www.digikey.ca/product-detail/en/omron-electronics-inc-emc-div/V-153-1C25/Z4613-ND/1829013 You can search AliExpress for "V-153-1C25" and make sure to get one with a long arm as specified by the model number. The long arm is necessary for the X Axis. Note: the Y axis will work with a medium style arm, but the long one works fine. #Hardware# Qty 16 - M3 nut Qty 4 - M3x12mm screw Qty 8 - M3x16mm screw Qty 4 - M3x20mm screw Here's an example of a kit which includes the hardware you will need. You could get much cheaper hardware if you take the time to look for it (and maybe wait for it to ship from China) https://www.amazon.ca/gp/product/B06Y4N8XWG/ #CNC Router# You can find this router all over the place, eBay, Amazon, AliExpress, Banggood, etc.. Search these sites for *3018 Pro CNC Router* Here are a couple example links. https://www.amazon.ca/gp/product/B07GPTGN5J/ https://www.sainsmart.com/products/sainsmart-genmitsu-cnc-router-3018-pro-diy-kit Note: the SainSmart site shows various models of 3018 router including the Pro and non-Pro version. The main differences between the different 3018 Pro CNC Router versions you find online are the inclusion or exclusion of options (range: $100 to $300USD): - Offline Controller (lets you use the machine without a laptop attached) - Laser (lets you engrave/burn with a somewhat low powered 2W to 5W laser - as opposed to a high powered 50W+ CO2 cutting laser found on laser cutting machines) - Collet chuck (sometimes called ER11, centres the milling tools more accurately) - Cutting bits - Mounting hardware (to hold down your raw stock)