Plans to build cnc 3 axis router table, expandable dining table plans - For You

Categories: Wood Shoe Rack Plans | Author: admin 27.07.2015

This Instructable is the first in a series documenting the construction of a DIY 3 axis CNC router.
I supplied my own materials and provided the sweat equity to build my parts from aluminum bar stock.  during the process I learned quite a bit about machining and taught the students more about CNC Router tables.
I wanted to make the X axis easier to adjust and keep in aligned to the  angle iron guide rails.  I also wanted to make the X axis extrusion less prone to flexing. On the X axis carriage I widened the bearing mount rods and eliminated the threaded rods in favor of a shaft and spacer bushing.
The new Aluminum CNC Router build  has one other benefit I was not counting on.  It is able to lift significantly more weight on the Z axis. I have plans for an MDF version available but have not decided if I should make plans for the aluminum available. This is also my entry for the Universal Laser Cutter Contest.The goal of this Instructable is not to show a full step by step progression but rather to pass along my experiences with making my own CNC.
I am constantly modifying my 3 axis CNC Router table to add new features and functionality.


I turned the spacer bushings on a  metal lathe to ensure a tight fit.  I also added an adjustable bottom bearing system with set screws to lock the carriage in place. The major Z axis change from the first version is to do away with the lead screw in favor of a Rack & Pinion system. This step shows the progression of the Z axis - this was the most complex and time consuming assembly to manufacture. I have slowly been tweaking the machines construction for the last 4 years to the point that it is now a distant cousin to the original 3 Axis CNC Router with MDF carriages and Lead screws. I spent a good deal of time on that modification (The Warp Drive Project) and even made plans available. I designed this machine for the sculpture department to primarily cut soft material (foam, wax, some plastic and wood).
Each upgrade has worked  better than the previous version so I decided make an aluminum CNC router build.
I was fortunate to have the chance to work along side the Mechanical Engineering Technology students at Morrisville State College  and help  the  students make A CNC Router table.


I have yet to see any flexing on the machine we built at the college (which uses the same 8020 mounting scheme. There is a smooth surface for the CNCRP drives to rotate on and a threaded stud for the lock nut.
Besides that, I got a great deal of pleasure from experimenting and building things in a new way.
I choose these plans a jumping off point - extracting what I needed and adding to the design to fit my needs. I really like the dual lead screw design - it has given us a lot of flexibility to have a movable table underneath the machine. Linear motion control, next to the drive train, is often the most expensive system on a CNC device and the Solsylva plans present a simple yet elegant solution to cutting the cost of linear movement buy using roller skate bearings, angle iron, and EMT conduit.



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