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Granite Gantry Rail Drilling Part 4

Granite Gantry Rail Drilling Part 4

Posted by Jonathan Gee on Mar 01, 2022

IT'S BECOMING VERY RELIGIOUS THIS PIECE OF GRANITE!

Drilling Granite for Mounting Rails
[Part 4]

Posted by Jonathan Gee, 1st March 2022


This is a privately funded project that frequently sees shortage of funds delaying progress, If you are enjoying this build diary and would like to contribute to the completion of this project and all the future guides and video journeys it would be gratefully received and spent directly on this project. Donate through PayPalMe Here...

Granite Hole Drilling Part 4

See through image of the granite gantry showing all the  hole locations that are required.

This is the design plan for the granite gantry. There is over 100 holes planned in this puppy making for a lot of work to come.

I just found another granite drilling video. You can see how the sludge is too thick really at this point because i am not keeping fresh water going into it because i am holding the camera.

Granite X Gantry for CNC Machine with all the holes drilled for the linear rails.

And the gantry rail holes are all drilled finally.

Image of a driling jig for drilling the holes in the end of the granite block for cementing in M12 inserts.

Here I just made a simple jig matching the size of the granite end to act as a guide for scoring the granite with the core drill. I can't remember but i think these were M12 inserts I went with. The holes were going to be hand drilled as i I didn't want to risk standing the granite on its end.

Drilling Granite Jig for holding the core drill square.

Again, I made a little wooden jig for holding the core bit square to the end.

Photograph showing the full jig setup for drilling the granite insert holes.

Holy hell it was hard working drill these holes compared to using a pillar drill.

Image showing four holes drilled in the granite.

4 Down, 4 more to go!

Image showing internally threaded scokets cemented into granite

Before a cleanup.

Internally threaded sockets finished and cemented into an X axis Granite CNC Gantry

After a cleanup looking quite tidy. You may wonder why I chose not to use more bolts in this end, but when it comes round to sharing the design for the gantry assembly you will understand how the support of this gantry is spread across all the faces of this granite block.

Image showing a 1.4metre span on granite with 1300mm 30mm linear rails bolted to it using internally threaded sockets.

Its coming together slowly but surely.

Please feel free to leave any questions, comments or feedback on this build diary blog.



Originally Uploaded On: 01/03/2022

Last Updated On: 01/03/2022

Estimated Date Period: : 01/11/2020

This is a privately funded project that frequently sees shortage of funds delaying progress, If you are enjoying this build diary and would like to contribute to the completion of this project and all the future guides and video journeys it would be gratefully received and spent directly on this project. Donate through PayPalMe Here...

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THIS BUILD DIARY IS ONLY HOSTED ONLINE BY EMG PRECISION LTD. IT IS A PRIVATE HOBBY PROJECT BY MYSELF, JONATHAN GEE. THIS PROJECT BLOG IS ONLY A DIARY OF EVENTS WITH SOME IDEAS FOR HOW I FELT THE PROCESS WENT WITH SOME TECHNIQUES I FOUND USEFUL. THIS IS NOT AT ALL AN OFFICIAL GUIDE OF HOW TO DO THINGS AND YOU SHOULD SEEK PROFESSIONAL ADVICE FROM COMPETENT PERSONS AND CONDUCT RISK ASSESSMENTS BEFORE UNDERTAKING ANY OF THE TASKS SHOWN IN THIS PROJECT BLOG DIARY.