Thread: Beavermill conversion to CNC
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11-11-2009 #1
Hey everyone,
I am a metalworker professionally and as my hobby. I always wanted to have a CNC milling machine.
Hearing the prices of repairs on our CNC machines at work , I gave up my ambition to buy one.
Then I met some people who build their CNC by themselves.Then the idea came to me to rebuild my old Beaver Mill .
A decade ago I bought a Beaver Mill VBRP.
After standing in a corner of my workshop all this time, I put him back in the spotlights. The idea is to convert him into a CNC Mill.
Last Saturday I started cleaning him.
I will let you know how the rebuilding goes along.
Here are a few foto's from before the clean up;Last edited by Andre; 29-11-2009 at 04:58 PM.
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The Following User Says Thank You to Andre For This Useful Post:
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11-11-2009 #2
Welcome to the mad house,
I think JohnS has a beaver mill or is in favour of them.
peter
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11-11-2009 #3
That's a nice thing to have standing in the corner of the workshop (Actually, It'd be quite nice to have a workshop with a spare corner!)
I suggest you look at ball-screws rather than using the existing lead-screws (for X and Y), with servo motors, rather than steppers, for a machine of that size.
Are you thinking of motorising the knee or just the quill?
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12-11-2009 #4
Hello everyone,
On Sunday I managed to partially disassemble the Beaver and to clean the table so it is presentable again.
I already had a ball-screw for the Z axis from a CNC mill that was refurbished.
And I am planning to change the X and Y axes with ball-screws as well.
Does anybody know which are the best axial bearings with zero tolerance
and preloaded so that I don't need belleville washers.
I don't know what they use in real CNC mills as axial bearing.
Kind regards ,
Andre.
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14-11-2009 #5
Good pics Andre! I think a lot of the blokes on here like Beavers especially John! I am sure he will chime in with some advice soon.
Will
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14-11-2009 #6
On sunday I did some more work on it.
I removed the elecktricity so we can put some new on later.
Disassembled the turret and cleaned the coolant tank which was full off slurry . Dirty work it was.
We also discoverd a tag with an award from the Queen.
And as you can see the year is 1967 so I presume it is build in the same year.
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14-11-2009 #7
On Wednesday I cleaned the body with prepaint and put some paint on it.
yesterday we cleaned some parts off the turret.
Today we did some milling on the ram so if at a later date I want to make a toolchange or something else than there is already a plane and holes to bolted it on.
also on the rear I made some holes to connect a high speed motor.
Later today we painted the turred and started some milling on the table console .
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16-11-2009 #8
Hi Andre,
That is some serious equipment! Thankyou for sharing this project with us - I will be reading along with interest...
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20-11-2009 #9
Hello Tom,
Serious jobs demands serious equipment.
It is not always easy when you only have small machines.
Yet many of you are also making beautiful pieces with small machines .
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20-11-2009 #10
Last week I had a lot of work with scraping the verticale slider mounting surface. on the link below you can see real pro's at work.
http://www.moriseiki.com/dixi/englis.../scraping.html
I did some assembling from the turret.And I found a protection for the Z axis.
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