Page 5 of 5 FirstFirst ... 345
  1. #41
    Quote Originally Posted by BillTodd View Post
    Robin has it bang on
    Blimey, that's a rarity, thanks

    I just took pics of a gun drill. They are a bit odd.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	gundrill.jpg 
Views:	120 
Size:	212.5 KB 
ID:	4534  

  2. #42
    Quote Originally Posted by Robin Hewitt View Post
    Blimey, that's a rarity, thanks

    I just took pics of a gun drill. They are a bit odd.
    As you say...odd (thanks for the pic)

    Re not being able to keep the workpiece static (& rotate the bit), this page suggests it's one of the methods....

    http://www.gundrillingsolutions.com/Pages/basicpr.html

    Bill, the method you outlined I'd considered...I have no sliding rail though, so would have to contempate making one...but then I saw the cost of a pair of support rails @1.2mm long - gulp.

  3. Bill, the method you outlined I'd considered...I have no sliding rail though, so would have to contempate making one...but then I saw the cost of a pair of support rails @1.2mm long - gulp.
    They don't have to be that strong, they just have to be straight.

  4. #44
    Quote Originally Posted by BillTodd View Post
    They don't have to be that strong, they just have to be straight.
    Yes I realised that (as there'd not be much deflection force operating downwards), but I'd imagine getting 'straight' at a length of about 1.2m might prove a little difficult (I'm also thinking bass guitars might be an option so now allowing up to 600mm - so 600mm drilling 'travel' + 600mm to retract the neck before/after drilling it = 1.2mm rails needed)...which is why I looked at supported rails...they be straight!

    i'm open to siggestions though (I can feel a custom rig coming on!)

  5. #45
    Quote Originally Posted by HankMcSpank View Post
    which is why I looked at supported rails...they be straight!

    i'm open to siggestions though (I can feel a custom rig coming on!)
    What about these ones? Maybe not the cheapest, but they are good with lots of wood dust around:

    http://uk.rs-online.com/web/p/linear...PSF_346163|cav

    Apparently you can get them directly from the igus site in the size you want for a good price. It's probably worth exploring a cheaper option first.
    I guess it all depends on how many you're making.

  6. #46
    Quote Originally Posted by Jonathan View Post
    What about these ones? Maybe not the cheapest, but they are good with lots of wood dust around:

    http://uk.rs-online.com/web/p/linear...PSF_346163|cav

    Apparently you can get them directly from the igus site in the size you want for a good price. It's probably worth exploring a cheaper option first.
    I guess it all depends on how many you're making.
    That's actually quite a nice system, it wasn't clear from the 3d piccie on RS, but this video shows that it could be a good contender...

    http://www.youtube.com/watch?v=Bv4I7YomE74

    or a cheapskate's version...

    http://www.ebay.co.uk/itm/Patio-Trac...item27b4161cb7 (an extra pair of wheels needed)
    Last edited by HankMcSpank; 14-09-2011 at 09:04 PM.

Page 5 of 5 FirstFirst ... 345

Similar Threads

  1. Brians Pick and Place Project
    By briand in forum Pick & Place Machines
    Replies: 4
    Last Post: 08-02-2014, 04:45 PM
  2. NEW MEMBER: Hello! Another new guy wishing to pick brains and ask for opinions...
    By seashaw in forum New Member Introductions
    Replies: 4
    Last Post: 17-10-2013, 11:01 AM
  3. JuKu's pick and place project
    By JuKu in forum Pick & Place Machines
    Replies: 3
    Last Post: 09-12-2012, 08:42 PM
  4. Pick and place log
    By Robin Hewitt in forum Pick & Place Machines
    Replies: 4
    Last Post: 22-10-2010, 03:00 PM
  5. need someone with cnc brains help
    By steveie_e in forum Machine Discussion
    Replies: 4
    Last Post: 08-06-2008, 09:50 AM

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
  •