What's new

Search results

  1. G

    Yaskawa CIMR-MTII-7.5K.H spindle drive Varispeed 626 MTII

    Thanks, your pdf seems to describe exactly my unit. So that 3 terminals are control power but unfortunately, there is still not enough information on what is permissible voltage for control power and e.g. whether there are any timing requirements regarding main power and control power...
  2. G

    Yaskawa CIMR-MTII-7.5K.H spindle drive Varispeed 626 MTII

    Hi, anyone familiar with this drive? I got one for testing and I'm not sure about connections. I found a pfd datasheet https://p.repairtw.com/images/Series/Manual/English/Varispeed%20626MTII.pdf but I'm afraid it is not 100% accurate for my unit. At least, I can't find u,v,w,e terminals...
  3. G

    Drilling holes without shift

    Yes, the drill spindle of my 150 USD aliexpress mag drill has a lot of play and also the guides of the mag. drill are a little wobbly. I was thinking about elminating these factors with the custom tool which self-centers in the hole. Tried drilling 21.8 mm hole with 22 mm drill bit, even with my...
  4. G

    Drilling holes without shift

    max 0.05 mm positional accuracy would be nice. I'm thinking of some custom tool made e.g. from 3 or 4 flute drill bit. 3 stages grinded, first is just a little oversize of the original hole to center the tool in the hole, the second stage removes most of the material and the last stage is like...
  5. G

    Drilling holes without shift

    Hi, I have a big and heavy 16mm steel plate with hundreds of 22 mm laser cut holes in it (welding table). I would like to make the holes bigger (24 mm) with my magnetic drill. The original holes are not of perfect cylindrical shape, they are rather conical (top diamater 22 mm, bottom diameter...
  6. G

    Biax 7 ELC

    Hello Richard, definitely no need to introduce yourself :) Thank you very much for your detailed reply, a lot of useful information for me and valuable contacts. Yes, the scraper has our standard central European/German plug end. I think the box the scraper comes in is original without any...
  7. G

    Biax 7 ELC

    OK, thanks. It seems to me that the scraper runs normally, altough I have never had a chance to run any other for comparison. I think my scraper was stored in some hot place because it was all sticky when I got it, probably caused by the grease that leaked out. I'm still unsure at the moment...
  8. G

    Biax 7 ELC

    Hi, recently I acquired Biax 7 ELC. It cost me 400 USD and I think it is in very good shape. I had no luck when I searched for user or service manual for this unit, is there any? Also when searching for Biax model 7 ELC, there are no results for this particular model. Does anyone know...
  9. G

    B&R ACOPOSInverter P74 configuration

    Hi, this is my first experience with VFDs. I'm able to set parameters of this VFD locally using its encoder and 7-segment display. It is not very comfortable. I would like to know whether it is possible to connect this VFD to PC to configure it. It has Powerlink module with 2x RJ45. I assume B&R...
  10. G

    Headstock bearings scraping

    Of course! I just wanted some third party to judge the quality of the scraping. Thanks for that. I'm from the Czech Republic.
  11. G

    Headstock bearings scraping

    To be honest, it wasn't me who did the scraping. It was a company that professionaly refurbishes machines in my country. I didn't want to mention that, intentionally, not to bias anyone. But obviously I biased everybody that it was me who did the scraping - I'm sorry for that. The brand of the...
  12. G

    Headstock bearings scraping

    Thank for your reply! I have also a feeling that there are not many bearing spots and they are not evenly distributed. Is there any book or any other source where the quality of bearing's surface is described?
  13. G

    Headstock bearings scraping

    Are the pictures of good quality or is it impossible to judge the scraping quality based on these pictures?
  14. G

    Headstock bearings scraping

    Hi, I have freshly scraped headstock bearings on my machine. I tried to highlight high spots with blue colour. Please see pictures: I hope it is good quality scraping. Do you think I can run my machine's spindle?
Back
Top