Page 20 of 28 FirstFirst ... 101819202122 ... LastLast
  1. #191
    Quote Originally Posted by njhussey View Post
    I've got a sodding great big 40mm front plate that my 2.2kw spindle hangs off and my 3Nm stepper whizzes it up and down no problem so you'll be fine!
    That's re-assuring. I've just done some quick calcs and it looks like the steppers will be more than up to the job. Of course, it was an educated guess!

  2. #192
    More big steps today...cleared a big space in the shed and measured up ready to build my workbench/stand!

    On a side note, what method does everyone recommend for finishing aluminium parts? Some of the larger parts I had machined for my router are not milled on both sides and so are dull and have the original "stock" finish (some have lettering etc). I want a finish which is durable and ideally helps oxidising. Anodising would be ideal but I think that's going to be a little price and not something I can do myself? So this leaves me with: Polishing (if so, what's the best way and will the finish oxidise over time?), spray painting, powder coating, other plating??

    Thanks in advance!

  3. #193
    It's bloody tool not a Pimp My Ride.!. . . . . . . . . Which is bit rich coming from a Bloke who's spent quarter the day Plastic coating parts for sexy little router he's finishing off. . .

  4. #194
    Quote Originally Posted by JAZZCNC View Post
    It's bloody tool not a Pimp My Ride.!. . . . . . . . . Which is bit rich coming from a Bloke who's spent quarter the day Plastic coating parts for sexy little router he's finishing off. . .
    Pimp my CNC!

    I think I'll use some 1000grit sandpaper then see if I can replace the grinding wheel on my cheap Aldi bench grinder with a polishing one.

  5. #195
    I've polished a few bits of aluminium by starting with about 220 grit and a random orbit sander then going up the grits as high as possible before finishing by hand. I don't really think it's worth it though as aluminium is so soft it scratches again in five minutes. I suppose you could spray a lacquer on it maybe.

  6. #196
    Hmm I think I'll do a 'quick' polish but nothing overboard.

    While I'm thinking about it, should I be using threadlock on all my parts? Or will torquing to the correct value be enough?

    Also, do I need to remove all the machine oil from my new ballscrews before using them?

  7. #197
    Ahhhhh panic!!!

    I thought things were going too well... I don't know how I've missed this but the 45 series rexroth extrusion has 10mm diameter holes for M12 screws on the ends. For some unknown reason I've designed my aluminium gantry sides for M6!!! I've seen you can get an M8 "cutting bush" which reduces the bore. Would my best option be to use these and get the side plates drilled out to M8?

    =(

  8. Quote Originally Posted by biketrialsdave View Post
    Ahhhhh panic!!!

    I thought things were going too well... I don't know how I've missed this but the 45 series rexroth extrusion has 10mm diameter holes for M12 screws on the ends. For some unknown reason I've designed my aluminium gantry sides for M6!!! I've seen you can get an M8 "cutting bush" which reduces the bore. Would my best option be to use these and get the side plates drilled out to M8?

    =(
    It would be much worse the other way around! Why don't you just increase the size of the holes on your end plates to take m12? Or am I missing something?
    Last edited by JoeHarris; 05-02-2016 at 12:05 AM.

  9. #199
    Quote Originally Posted by JoeHarris View Post
    It would be much worse the other way around! Why don't you just increase the size of the holes on your end plates to take m12? Or am I missing something?
    I could do this but M12 socket caps look massive and don't leave much material thickness. Perhaps I might have to compromise with M12 button head bolts and not countersink them?

  10. What plate thickness have you got?

Page 20 of 28 FirstFirst ... 101819202122 ... LastLast

Similar Threads

  1. aluminium profile for cutting bed of router
    By steeplejack in forum Marketplace Discussion
    Replies: 3
    Last Post: 19-10-2013, 10:52 PM
  2. BUILD LOG: New CNC router 8x4 For Cutting Multiple Materials
    By ciscoeuk in forum DIY Router Build Logs
    Replies: 19
    Last Post: 03-02-2013, 02:01 AM
  3. Multiple CNC Opportunities both Nationally and Internationally
    By cnc jobs in forum Opportunities Available & Sought
    Replies: 0
    Last Post: 21-09-2012, 01:01 AM
  4. WANTED: CNC Mill/Router for Cutting Aluminium
    By kylelnsn in forum Items Wanted
    Replies: 5
    Last Post: 09-08-2012, 09:54 PM
  5. Test cutting materials
    By Kai in forum General Discussion
    Replies: 6
    Last Post: 05-12-2010, 10:27 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
  •