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- RotarySMP
03 Dec 2024 09:28
Replied by RotarySMP on topic Retrofitting a 1986 Maho 400E
Retrofitting a 1986 Maho 400E
Category: Milling Machines
Hi David,
Thanks a lot for that. I have a bunch of questions for you...
What year is your machine?
Have you lubricated your bearings already?
Did you confirm yours has the tapered roller bearings?
What Max RPM does it have?
What alternative grease did you use, as it seems Kluber F23A is discontinued?
Is the instruction you uploaded for the vertical spindle or the horizontal?
Do you have any advice on removing the draw bar unit?
My understanding is that the vertical has a more complicated set up with integral bearings. My machine is also 40 taper. It's pulls studs are the ISO 7388 Type B option and my Manual covers the adjustment in 7.35 like yours.
No wonder that MAHO gave out such different manuals, as my user manual (in German) has the cover guard removal in that section 7.10, and nothing on spindle lubrication, but I guess this is tied in with them keeping reinventing the wheel, as there are also drawings of 400E with these horizontal...
...and vertical spindle bearing configurations.
I am starting to feel like Forest Gump, where a Maho spindle is like a box of chocolates
If you have the whole manual scanned, I would appreciate a copy of it please. I can send you my German language version if you are interested.
With regards to the axis swap, when I did my LinuxCNC retrofit, I configured mine as a vertical mill (Z up down) whereas Maho configured them standard as a horizontal, with an option to Axis swap. Servo closing relays? My schematic doesn't have any. 7K2 provides the muscle power to all three channels of the Indramat, and the axis enables are hard wired onto inputs from the vertical axis motor brake, and a couple of other contacts, so LinuxCNC has no control over them.
I have my PP of my CAM set up for a vertical mill as well. I have been editing my G-code files, to do the axis swap (reversing Y/Z, inverting one, replacing I, J with I, K, and Inverting it, and could easily write a macro to automate that.
I was in the middle of setting up a second LinuxCNC configuraton with the mill as horizontal (Y vertical movement), but was getting confused with the Ini edits, before I got sidetracked with my DoAll gearbox, and now with the spindle noise. I still need to complete the second config, as it makes most sense to have both, and then I can use the same PP, and code generated can be used on either configurations.
Cheers,
Mark
Thanks a lot for that. I have a bunch of questions for you...
What year is your machine?
Have you lubricated your bearings already?
Did you confirm yours has the tapered roller bearings?
What Max RPM does it have?
What alternative grease did you use, as it seems Kluber F23A is discontinued?
Is the instruction you uploaded for the vertical spindle or the horizontal?
Do you have any advice on removing the draw bar unit?
My understanding is that the vertical has a more complicated set up with integral bearings. My machine is also 40 taper. It's pulls studs are the ISO 7388 Type B option and my Manual covers the adjustment in 7.35 like yours.
No wonder that MAHO gave out such different manuals, as my user manual (in German) has the cover guard removal in that section 7.10, and nothing on spindle lubrication, but I guess this is tied in with them keeping reinventing the wheel, as there are also drawings of 400E with these horizontal...
...and vertical spindle bearing configurations.
I am starting to feel like Forest Gump, where a Maho spindle is like a box of chocolates
If you have the whole manual scanned, I would appreciate a copy of it please. I can send you my German language version if you are interested.
With regards to the axis swap, when I did my LinuxCNC retrofit, I configured mine as a vertical mill (Z up down) whereas Maho configured them standard as a horizontal, with an option to Axis swap. Servo closing relays? My schematic doesn't have any. 7K2 provides the muscle power to all three channels of the Indramat, and the axis enables are hard wired onto inputs from the vertical axis motor brake, and a couple of other contacts, so LinuxCNC has no control over them.
I have my PP of my CAM set up for a vertical mill as well. I have been editing my G-code files, to do the axis swap (reversing Y/Z, inverting one, replacing I, J with I, K, and Inverting it, and could easily write a macro to automate that.
I was in the middle of setting up a second LinuxCNC configuraton with the mill as horizontal (Y vertical movement), but was getting confused with the Ini edits, before I got sidetracked with my DoAll gearbox, and now with the spindle noise. I still need to complete the second config, as it makes most sense to have both, and then I can use the same PP, and code generated can be used on either configurations.
Cheers,
Mark
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