Thread: Hi All

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  1. #1
    Just found this site today so thought I would join and say Hello.
    I am trying to convert a Sieg X1 to cnc and have been trying for some years now. Main ptoblem is that I wanted to use ball screws on it but have had problems with the limited space on the X-axis but nearly there now.
    I have x and y axis's working reasonably well nad almost a working z axis but not completely happy with it yet. I think I will have to fit some form of spring or pulley system to take some of the head weight to help in the upward direction.
    I have also had problems with my very limited machining skills plus lack of tools. Every thing I want to do seems to need another raft of tools not that |I mind but retirement puts a limit on expendature.

    So far I have been very impressed with the knowledge on this site expecially as it is in the Uk

    Peter

  2. #2
    Peter,
    Welcome to an Evan free site. There are a lot of knowledgeable people here, some very helpful ones even if they do have City and Guilds in piss taking lol

    .
    John S -

  3. #3
    Quote Originally Posted by John S View Post
    Peter,
    Welcome to an Evan free site. There are a lot of knowledgeable people here, some very helpful ones even if they do have City and Guilds in piss taking lol

    .
    Evan? Who he????

    Jeff
    Nothing is foolproof......to a sufficiently talented fool!

  4. #4
    Believe me you don't want to know..........:heehee:
    John S -

  5. #5
    Quote Originally Posted by ptjw7uk View Post
    Just found this site today so thought I would join and say Hello.
    I think I will have to fit some form of spring or pulley system to take some of the head weight to help in the upward direction.
    Hi Peter, welcome to the club

    Quote Originally Posted by ptjw7uk View Post
    I have also had problems with my very limited machining skills
    You'll get along with Kip just fine then:heehee:

    Regards, Jeff.
    Nothing is foolproof......to a sufficiently talented fool!

  6. #6
    Quote Originally Posted by Kip View Post
    We'll start our own help group and you can make the tea Jeff :D ....Cheeky git
    Serves you right for 'dissin my glider struts lol
    Nothing is foolproof......to a sufficiently talented fool!

  7. #7
    Peter, I fancied doing an X1 for my daughter to replace the Taig mill, at ally Pally about 3 years ago there was a guy selling ballscrew's off [ don't laugh ] hospital beds. Seems they had to swap these every so often and most had never been used.
    He wanted 25 each for them and they were just long enough to do the X on a long series X1, I wanted 4, three for the mill and one for a Z axis on a small lathe.
    Alan from Arc wanted 3, another guy at the show was converting his X1 and wanted 3 and I rang another guy and he said yes to 3 if we could get a decent price, so finished up buying 15 all together for 12.00 each.

    They just fitted under the bed with about 1/16" milled off the bottom.

    It made a nice machine but I sold it to make a bit of room when I knew the KX prototype was on it's way over from China.

    Never saw the guy with the ballscrew's again but stopped doing Ally pally now anyway, too expensive to stand there.

    .
    John S -

  8. #8
    John what did you mill the 1/16 off, I had to mill some of the spare Y carriage I bought so as the ball nut had enough clearance not the best solution but it worked.
    Only worry I have now is that the Marchant ball nuts do not have wipers so am now pondering how to fit them.

    Peter

  9. #9
    I dont know what make they are, 12mm diameter ones I got from Marchant Dice which they appear not to supply now. They did say that wipers were not available so I thought I could use felt or rubber but knowing so little about ball screws i do not know.
    My main job at the moment is get them all fitted. I have also wondered if the z-axis stepper will not be powerful enough to raise the head without some form of assistance.

    Peter

  10. #10
    Peter,

    On the one I did I used type 23's all round, the 180 Ncm or 250 oz / in ones, 3 amp drivers at 30 volts, direct drive on the X and Y and 2:1 belt reduction on the Z.

    The 1/16" was taken off the underside of the bed to clear the nut block but different nuts may, or may not need this.

    Been looking for some pics but can't find them, I know I took some of the bed having the channel being milled.

    It worked very well for it's size, a lot faster than the Taig but then again the Taig was still on 20 tpi screws

    .
    John S -

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