Retrofitting a 1986 Maho MH400E

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24 Jan 2020 20:02 - 25 Jan 2020 09:52 #155671 by hanmon
Hi there,

did some little adjustment to the table.
It was almost perfect just sitting in the fitting-keys.
The cleaning of the contact surfuces really did it.
cloud.monschan.de/index.php/s/xzb9BMs4T2wRaKi
cloud.monschan.de/index.php/s/yH5qHWQ7cepm8Ap

First fit:



The original plastic nut literally turned to dust.
Don't know if it is correct, but I made the thread M38x1.5
Attachments:
Last edit: 25 Jan 2020 09:52 by hanmon.

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24 Jan 2020 23:00 - 24 Jan 2020 23:07 #155700 by RotarySMP
Hi Bob,
Don't get too excited, I doubt my draft HAL/INI will work without editing and correcting,

Hi Hanno,
Nice progress. I get bad gateway errors on the two links you sent though.

I was machining some aluminium spacers for a friend today. Haven't cleaned the chips out of the try for a while, and the mesh got clogged so the coolant overflowed onto the floor. What a mess.
Mark
Last edit: 24 Jan 2020 23:07 by RotarySMP.

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24 Jan 2020 23:19 - 25 Jan 2020 00:08 #155701 by hanmon
yeah...having trouble with the (my) server...
edit:...fixed
Last edit: 25 Jan 2020 00:08 by hanmon.

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25 Jan 2020 11:32 #155719 by RotarySMP
Thanks Hanno, now it worked. You can't argue with those numbers. Hard to argue with zero!

One of my friends had me mill a couple of spacers for him yesterday. I made a video of it.

Mark

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25 Jan 2020 13:52 #155721 by hanmon
Hi Mark,

your videos are really nice. Tutorial like,entertaining, showing the essence of your work. Exactly how I like them on youtube.

It is almost zero, more like 0,005mm which seem to be the factory tolerance.
The table and the X-axis are perfect now according to my estimation.
Does anyone know the specs MAHO delivered their machines with?
How are the specs on such machines, generally ?
Z is hard to measure, as the weight continuosly pushes down but stabilizes on the other hand.
Y is easy like X and I will adjust it soon.
I'm currently connecting the A-Axis and tuning the Servo-Controller.

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25 Jan 2020 15:32 #155726 by db1981
Hello,

an old Maho Man told me 0.01mm is already an bad condition....

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25 Jan 2020 15:34 #155727 by db1981

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25 Jan 2020 15:39 #155728 by db1981

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The following user(s) said Thank You: RotarySMP, drimaropoylos

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25 Jan 2020 15:57 #155729 by RotarySMP
Thanks Hanno. I guess I'll have to run a clock over my table now to compare. Also have to clean out the coolant drain.

Mark

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25 Jan 2020 16:46 #155734 by hanmon
THX db1981 !!!!

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