Page 3 of 3 FirstFirst 123
  1. #21
    PAULRO's Avatar
    Lives in LIMERICK, Ireland. Last Activity: 4 Weeks Ago Has been a member for 4-5 years. Has a total post count of 178. Received thanks 2 times, giving thanks to others 198 times.
    so I'm thinking I'll need approx 1600/950/550 rails (don't ask where I got those numbers from :) they're a guess loosely based on a rough guess of space between bearings)
    Hi Lloyd, i'm about to start a first build similar to yours but i want a cutting footprint of half a standard sheet of wood, (1220 mm x 1200 mm ). i'm trying to minimize the footprint of the m/c and the spare travel of the Y AXIS. have you revised the dims above ? how much spare travel do have on the Y AXIS? I will use 80 x 80 x 5 mm box section for the frame and epoxy for the X AXIS plane. any info to get me up and running with a sketch would be greatly appreciated,
    paulro

  2. #22
    PAULRO's Avatar
    Lives in LIMERICK, Ireland. Last Activity: 4 Weeks Ago Has been a member for 4-5 years. Has a total post count of 178. Received thanks 2 times, giving thanks to others 198 times.
    hi EddyCurrent,
    can you give me details of the epoxy mentioned above,( brand name . quantity required , suppliers etc.0 my m/c wil have a cutting area of 1200 mm x 1200 mm approx. cheers , Paulro

  3. #23
    Neale's Avatar
    Lives in Plymouth, United Kingdom. Last Activity: 2 Hours Ago Has been a member for 4-5 years. Has a total post count of 1,004. Received thanks 170 times, giving thanks to others 5 times.
    Quote Originally Posted by PAULRO View Post
    so I'm thinking I'll need approx 1600/950/550 rails (don't ask where I got those numbers from :) they're a guess loosely based on a rough guess of space between bearings)
    Hi Lloyd, i'm about to start a first build similar to yours but i want a cutting footprint of half a standard sheet of wood, (1220 mm x 1200 mm ). i'm trying to minimize the footprint of the m/c and the spare travel of the Y AXIS. have you revised the dims above ? how much spare travel do have on the Y AXIS? I will use 80 x 80 x 5 mm box section for the frame and epoxy for the X AXIS plane. any info to get me up and running with a sketch would be greatly appreciated,
    paulro
    I think that you need to look at your rail sizes again. Very roughly, to be able to machine around the outside of a 1220x1220 board, you are going to need about 1250mm travel (as you must allow for cutter diameter). Then you need to add on bearing spacing - say, 200mm. That means that the rails need to be about 1450mm in X and Y (minimum) and when you start looking at the detail design, it will probably end up a bit bigger than that. That's starting to look like a fairly sizeable gantry width.

  4. #24
    Also you will have to add size for the limit and homing switches

    A bit of info on Epoxy

    post 20
    http://www.mycncuk.com/threads/6952-...ng-area!/page6

    post 6 http://www.mycncuk.com/threads/6403-...-A-fast-router ..Clive

  5. #25
    PAULRO's Avatar
    Lives in LIMERICK, Ireland. Last Activity: 4 Weeks Ago Has been a member for 4-5 years. Has a total post count of 178. Received thanks 2 times, giving thanks to others 198 times.
    ya , the m/c is starting to grow unexpectedly. originally i wanted a cutting area of 1000 mm x 1000 mm but then decided to try and go for a standard size width. i was hoping to m/c hardwoods, plastics, light and aluminum sheeting from time to time. is the gantry length a problem at this width? will i need bigger motors? am i being too ambitious with those dims? thanks for the info on epoxy by the way.
    Paulro.

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Geckodrive - The G215 Step and Direction or VCO
    By Lee Roberts in forum Motor Drivers & Controllers
    Replies: 0
    Last Post: 31-03-2012, 10:42 PM
  2. newbie desperate for a shove in the right direction
    By swinds in forum Machine Discussion
    Replies: 9
    Last Post: 22-06-2011, 11:13 PM
  3. NEW MEMBER: New Member, saying Hello and hoping for direction
    By GMNOCNC in forum New Member Introductions
    Replies: 0
    Last Post: 07-03-2011, 11:50 AM
  4. sudden change of direction
    By Dan Brown in forum Motor Drivers & Controllers
    Replies: 4
    Last Post: 06-03-2010, 11:30 AM
  5. Reversing motor direction in Mach3
    By bruce_miranda in forum Artsoft Mach
    Replies: 2
    Last Post: 16-11-2008, 06:54 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •