Retrofitting a 1986 Maho MH400E
05 Mar 2019 07:56 - 05 Mar 2019 08:01 #127764
by RotarySMP
Replied by RotarySMP on topic Retrofitting a 1986 Maho MH400E
Normally it rains every time we go to NZ. My family considered paying us to not come in summer, after we ruined one. This time I went alone and had blue sky sunny warm days. This confirms that my wife is a rain godess.
I connected the 602/1-F EXE and sent it to home. Opened a HALScope, and looked at the signal while manually turning Y, and could see that the signal looked good by with much lower resolution. Change the scale in the INI from -1000 to -200 and it has worked. I do notice that there is still a rythmic oscillation in Y between adjacent 0.005mm positions when stationary. I was never that happy with the tuning of Y ( in hindsight that was probably tied up with the drift). I'll retune that axis no it is stable and report back.
Next steps:
- I still have to get my panel encoders working. They are wired, and the buttons work, but the encoder signals aren't.
- Sergey is working on a revision to the gearbox comp to give the comp full control of the spindle and address that isue of going to neutral each stop, and thus not completing gear changes from a running spindle.
- I need to make the pendant. Touching off with the touch screen is a PITA.
- The dolley design needs completing and it manufactured, so I can finally try and fit this through the skinny door into the machine shop.
- I picked up a mist coolant system at some point, and would like to integrate that next time the covers come off.
- When fitting the new bellows I notice one oil line had been crushed on a previous cover installation, so it need replacing.
Since I practice analysis paralysis, I challenged myself to whip up a knife sharpening jig out of junk that was laying around, in one quick session without stopping. Made this in about 15 minutes.
Considering the tie wraps and double sided tape holding it together it works pretty well. Now it gets improved. I have already made stone holder with four grits of stone. Next I want to design and mill a decent knife holder.
Mark
I connected the 602/1-F EXE and sent it to home. Opened a HALScope, and looked at the signal while manually turning Y, and could see that the signal looked good by with much lower resolution. Change the scale in the INI from -1000 to -200 and it has worked. I do notice that there is still a rythmic oscillation in Y between adjacent 0.005mm positions when stationary. I was never that happy with the tuning of Y ( in hindsight that was probably tied up with the drift). I'll retune that axis no it is stable and report back.
Next steps:
- I still have to get my panel encoders working. They are wired, and the buttons work, but the encoder signals aren't.
- Sergey is working on a revision to the gearbox comp to give the comp full control of the spindle and address that isue of going to neutral each stop, and thus not completing gear changes from a running spindle.
- I need to make the pendant. Touching off with the touch screen is a PITA.
- The dolley design needs completing and it manufactured, so I can finally try and fit this through the skinny door into the machine shop.
- I picked up a mist coolant system at some point, and would like to integrate that next time the covers come off.
- When fitting the new bellows I notice one oil line had been crushed on a previous cover installation, so it need replacing.
Since I practice analysis paralysis, I challenged myself to whip up a knife sharpening jig out of junk that was laying around, in one quick session without stopping. Made this in about 15 minutes.
Considering the tie wraps and double sided tape holding it together it works pretty well. Now it gets improved. I have already made stone holder with four grits of stone. Next I want to design and mill a decent knife holder.
Mark
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