Thread: Milling Machine Advice
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14-06-2014 #1
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14-06-2014 #2
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13-06-2014 #3
Excellent pics Clive, thanks (do you have a build log?)
I'm assuming the slot in the bed and moving the replacement ballscrew up is needed to clear the Y axis carriage below it? I was rather hoping to get away without modding the main milling structures (beds etc.)
BTW - when you milled that slot were you using a 2.2Kw Spindle on your router? I've not tried running mine that slow as I thought you got torque issues below 6000rpm?
The Z axis looks like it could be converted by using a new top plate/bearing holder with a stepper/belt arrangement essentially strapped to the back of the column and abandon the "differential/bevelled gears" from the original?
Looking forward to seeing more progress shots.
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13-06-2014 #4The Z axis looks like it could be converted by using a new top plate/bearing holder with a stepper/belt arrangement essentially strapped to the back of the column and abandon the "differential/bevelled gears" from the original?
Regarding the spindle it is the 2.2Kw W.C. I did try it at 5K but was happier with 5.5K I have my spindle set up so that it won't go down past 3.3K I cut the slot with no issues.
I suspect that all beds are different underneath so the clearance will differ. I will post when I get the x screw in place but I have to get them first. ..Clive
Last edited by Clive S; 13-06-2014 at 10:44 AM. Reason: Added text
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13-06-2014 #5
Excellent (starts looking at the budget for earlier purchase :) ).
I'll have to play with my WC 2.2Kw on my router also given your experience and see what can be achieved, though it will have to wait until I have my rotary axis working.
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13-06-2014 #6
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13-06-2014 #7
Not quite sure what you mean by that, The flanged boss I am using is to enable me to use the original end plates on the X bed by machining the stub off then boring the 40 mill hole out to 42mm then the the new boss can be fitted with the bearings offset by the 3mm I need to get the screw in.
The flange is in the centre of the bearing housing ie stub both ends.
Do you have a link to that screwed nut? ..CliveLast edited by Clive S; 13-06-2014 at 02:19 PM. Reason: add text
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13-06-2014 #8
It's one from Zapp, if you look on the ball screw page it's down the bottom.
I presume that you're using the standard flanged ballnut like the below?
I was going to see if I could get away with one i could screw in to a 25mm (or whatever width) piece of steel that will replace the tapped existing nut.
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13-06-2014 #9
Originally Posted by njhussey;59200
I presume that you're using the standard flanged ballnut like the below?
[IMG
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13-06-2014 #10
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