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Old 11-05-18, 08:20 AM   #11
Lister M
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My Centec cost me 60 in working order a a vertical head can fetch several hundreds of pounds, I have a mill drill so its not so much of an issue for me but I do have an electric grinding spindle with mine.

Martin P
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Old 11-05-18, 09:39 AM   #12
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I asked about the vertical head because of the damage to the table, it wasn't done on a horizontal mill.

Neil.
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Old 11-05-18, 11:48 AM   #13
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That damage could have been caused by using bolts in the t-nuts that were too long, and overtightening, or not tightening enough allowing the workpiece to move and pull the t-nuts through.
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Old 11-05-18, 05:48 PM   #14
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Quote:
Originally Posted by pulsechoes View Post
That damage could have been caused by using bolts in the t-nuts that were too long, and overtightening, or not tightening enough allowing the workpiece to move and pull the t-nuts through.
really, I've never seen holes drilled by ripping fixtures/jobs off the bed.

Neil.
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Old 11-05-18, 06:00 PM   #15
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I have as ive done it as an apprentice.
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Old 11-05-18, 07:48 PM   #16
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Quote:
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really, I've never seen holes drilled by ripping fixtures/jobs off the bed.

Neil.
Those holes aren't damage, they are tapped to accept clamp bolts. If You read back through the thread, I think You'll find that the damage Phill was referring to is that to the tee-slots, He even mentions them (post #5), so Your sarcasm was uncalled for, Neil.
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Old 11-05-18, 08:08 PM   #17
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Quote:
Originally Posted by pulsechoes View Post
Those holes aren't damage, they are tapped to accept clamp bolts. If You read back through the thread, I think You'll find that the damage Phill was referring to is that to the tee-slots, He even mentions them (post #5), so Your sarcasm was uncalled for, Neil.
The holes being tapped to accept fixtures is not mentioned in this thread, or did I miss it, if so I apologise for my sarcasm.

Neil.
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Old 11-05-18, 10:01 PM   #18
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The table is certainly drilled in the four corners, the line of other holes all appear to be drilled quite parallel with the tee slots so I think they were deliberate.

I need to take the table off and properly de grease it to really know. The overhang of the tee slots looks to be 3/16” so if I remove that amount in the damaged sections and let in some plate of the same thickness, I’ll restore the tee slot shape. The whole thing can then be re-finished on a surface grinder.

Phill.
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