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I thought the conversion was fairly easy. I used a 48v power supply instead of the power supply installed, I couldn't figure out the DC filtering. I added some resistors to the pneumatics to run...

I have almost finished the conversion of this same mill to a Centroid Acorn setup. This mill is owned by the local high school First Robotics team. I can look and see if they have the original...

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This is my setup on my surface plate. The table mounting surface is face down. The right side is my master side and I used two blocks for spacers for distance and squareness. The dimension...

Haven't posted in awhile but I have been working. I switched to the mechanical components while the weather warmed and have completed some of the way cover roller mechanism.
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Rendering of...

It has been cold in Michigan so I have let the composites sit a bit and worked on the design and frame construction.
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I don't like sweeping chips so I have designed in a tray, shown in...

Hi Roger
The material that I am using is a man made quartz with a resin binder. This web site https://www.msistone.com/quartz-technical-specifications/ has some good information about the material. ...

I have some reservations myself Roger but this build is about finding out what can be done and if I screw it up someone else can learn from it. The latent stresses were more of a concern before I...

All of the exterior surfaces will be covered in carbon. The reason for the sandwich was to set the mounting surface for the linear rail riser as flat as possible which it did. I have bonded two 1/8"...

So I am working on three things in parallel on this project. The frame, which I have all of the steel for except the guards. The quartz frame which I have cut up and found that I am short the pieces...

I am documenting the build here in this thread - Quartz Counter top for Mill Base.

Wish I could Roger, it makes a mess. Saw is dry only. I have a wet saw just need to get the pieces small enough to use it.

I was able to do the carbon fiber layer today. I had to wait for some new epoxy, what I had didn't look good.
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I didn't want to get anymore epoxy into the inserts then I had to so I taped...

I am currently building a fixed gantry mill and am using carbon fiber to cover the quartz counter top I am using for the build. The local quartz dealer has remnants for $10 a square foot so I have...

I had good results with my testing today. I made some 3d printed washers with 25% fill and reassembled the X axis to see how they would compress with the jack screws. Most of the surface I could...

I did another analysis of the x axis beam using carbon fiber layers on the top and bottom.
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The first run was with two layers of cloth set at 0.5mm in the test. This improved max deflection...

So yesterday I did the dry run to assemble and straighten my X axis beam. I ran into a few problems.
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This is the eight layers of carbon in place, 0.011" per layer.
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I...

Ran a quick test with Inventor to compare my test results with their stress results.
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I am using concrete for my material and it looks like I am seeing close to the amount of deflection I...

I am working on using Quartz countertop remanates for a milling machine that I think will be highly accurate. Follow if you would like as I build my machine.

Sorry for the double post. I have finished machining the cross support and have set it up on the surface plate to dry test the assembly with the carbon fiber sandwich. It looks like I have 0.0045"...

One other thing I will show with my design is that use if the 30mm sections I can bring the flatness and parallelism for linear rail mouthing surfaces to 0.0001 using jack screws and epoxy with no...

One other thing I will show with my design is that use if the 30mm sections I can bring the flatness and parallelism for linear rail mouthing surfaces to 0.0001 using jack screws and epoxy with no...

I believe the manufactured Quartz is superior to natural granite. No cracks to worry about and there are dealers setup to water jet the pieces to very close tolerances. I spent $67 for all the quartz...

Some pictures of the build

I have finally started this build. Here is what my almost finished design looks like.
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I am working to finish the X and Z axis before I finish with the frame and Y...

1.2 x 10^5 for quartz vs 6 x 10^6 for cast iron. I will put my sample on my surface plate tomorrow

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Rough concept of what I am talking about. The Quartz counter top is made of 93% quartz and 7% binder. It is pressed and heat treated for high strength. The size of pieces that I would...

I have been looking at Quartz Counter Top remnants to use for a CNC router base. Has there been any research on this?

I think your right. I added some spacers and an outer plate to improve rigidity.
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16 bit encoders

DMM had the 400 watt servos with drive and all cables for $800 for 3 axis. Seems like a great deal for true AC servo.