Retrofitting a MAHO MH500W '89-'90 with hand-feed
- petmakris
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07 Dec 2023 22:39 #287494
by petmakris
Replied by petmakris on topic Retrofitting a MAHO MH500W '89-'90 with hand-feed
Hello Christoph,
Sadly, I didn't get notified about you post. So, many months later, what is your current status?
The machine is working, the retrofit was succesful but I am having some accuracy issues (for now, I believe it's the ballscrews)
You can browse this repository, all my work is there.
github.com/petmakris/maho-mh500w
About tips, what is the current status of the machine? Is it in a working order?
Sadly, I didn't get notified about you post. So, many months later, what is your current status?
The machine is working, the retrofit was succesful but I am having some accuracy issues (for now, I believe it's the ballscrews)
You can browse this repository, all my work is there.
github.com/petmakris/maho-mh500w
About tips, what is the current status of the machine? Is it in a working order?
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- H-S-W
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28 Feb 2025 08:01 - 28 Feb 2025 10:14 #322855
by H-S-W
Replied by H-S-W on topic Retrofitting a MAHO MH500W '89-'90 with hand-feed
Hi Petmakris!
I'm starting a linuxCNC conversion on a MH500W2 with a faulty Philips 432/9. Planning to use all your hard work in order to get it up and running again. I'll be using a Rpi5 and a 7I97T and three EXEs.
My first step has been to wire the mill to the 7I97T, but i have a question about the "Limit"s. In the MAHO documentation the limit switches seems to be connected in series 204-207,
did you rewire these or simply used 205,206,207 as limit X,Y,Z?
Regards,
Hampus
I'm starting a linuxCNC conversion on a MH500W2 with a faulty Philips 432/9. Planning to use all your hard work in order to get it up and running again. I'll be using a Rpi5 and a 7I97T and three EXEs.
My first step has been to wire the mill to the 7I97T, but i have a question about the "Limit"s. In the MAHO documentation the limit switches seems to be connected in series 204-207,
did you rewire these or simply used 205,206,207 as limit X,Y,Z?
Regards,
Hampus
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Last edit: 28 Feb 2025 10:14 by H-S-W.
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- simplex
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10 Aug 2025 08:59 #333150
by simplex
Replied by simplex on topic Retrofitting a MAHO MH500W '89-'90 with hand-feed
Hey guys, I also wanna convert a MAHO MH500W
But I'm more of a software / mechanical guy, so any advice would help
But I'm more of a software / mechanical guy, so any advice would help

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- tommylight
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10 Aug 2025 15:15 #333166
by tommylight
- a lot of reading
- never wire everything and hope it just works, it won't
- do everything step by step, especially wiring and testing the electronics
- ask, ask, and ask again, we are here to help as much as humanly possible
Replied by tommylight on topic Retrofitting a MAHO MH500W '89-'90 with hand-feed
- DO IT!!!
But I'm more of a software / mechanical guy, so any advice would help
- a lot of reading
- never wire everything and hope it just works, it won't
- do everything step by step, especially wiring and testing the electronics
- ask, ask, and ask again, we are here to help as much as humanly possible
Please Log in or Create an account to join the conversation.
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