Laser Cutting Requests

Discussion in 'Hobby Engineering' started by oRiCLe, Apr 28, 2015.

  1. nibennett

    nibennett Member

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    ----- Removed as had it printed through a store here since no replies.
     
    Last edited: Aug 4, 2018
  2. Mack.Attack

    Mack.Attack Member

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  3. LayZ

    LayZ Member

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    Anyone in VIC have a laser cutter that can cut acrylic? Doesn't need to be thick, it's for an aquarium fish tank lid.

    Dimensions are roughly 400x300x4m

    Happy to send dxf or whatever as required, I hacked the stock one up as we have wood sticking out of it but seems our newly adopted cat likes the aquarium water more than her own so I need to minimise where she can stick her head!
     
  4. psychobunny

    psychobunny Member

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    I think your measurements are not accurate... you either want 4mm thick or to crush your 4m fishtank.

    Ive got access to a glowforge at work that can easily do 300x400x4mm
     
  5. Soc

    Soc Member

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    A glowforge? In Aus? Whaaaa?
     
  6. LayZ

    LayZ Member

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    Ha! I managed to sweet talk the uni workshop guys and now have access to the cutter for non-uni use :D Must have been the cat and MR2 pics...
     
    DSTM (Dougie) and Matthew kane like this.
  7. psychobunny

    psychobunny Member

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    yeah, Pro unit.... still waiting for the filter so we have to run it in the garage with the door open

    kinda awesome having a workplace that is big on inventorship.... though the office space allocation seems to get smaller and smaller....
     
  8. Soc

    Soc Member

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    How's they get it? They aren't shipping to Aus. Did you get an intermediary to forward it?
     
  9. psychobunny

    psychobunny Member

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    yeah i think so, or we got it shipped to a partner company there to then onship it to us.... got organised before my time
     
  10. Zangetsu.ssl

    Zangetsu.ssl Member

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    Anyone here with a CNC router that can cut the following design? Material to be cut is 380 x 510 x 13mm HDPE.

    cboard_hc.jpg

    Have emailed few a places around Sydney but have not heard back. I suspect the job might be a bit small/easy for them? :confused:
     
    Last edited: Mar 25, 2019
  11. dirtyd

    dirtyd Member

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    Are you aware that it's not possible to get 90 degree internal corners with a router? Routers use a spinning tool, internal corners will always have a radius. If you need them to be 90 then you want laser cutting, not routing.
     
  12. Zangetsu.ssl

    Zangetsu.ssl Member

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    Yeah, I would need to know what the smallest radius the machine is capable of doing before I can draw in the proper corners. Only the small corners around the middle of the board on either side would need to have the smallest radius - the others wouldn't really matter too much.

    Would 13mm be too thick to be cut using a laser? I thought normally they'd be used for thinner materials.
     
  13. dirtyd

    dirtyd Member

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    The thing is once you start going to a small radius the tools get weaker and really easy to snap, so you have to go slowly and do multiple passes. Plastic is also a bit of a pain in the arse to route cos it's brittle and prone to snapping chunks off.

    An industrial laser cutter will cut thicker than that in steel, let alone plastic :)
     
  14. Zangetsu.ssl

    Zangetsu.ssl Member

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    I see. I guess I'll look for some laser cutting places then. Cheers!
     
  15. DSTM (Dougie)

    DSTM (Dougie) Member

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    "Cains Glass Services" Penrith, have laser cutting Dept. They do one-offs.
    Have done a couple of laser cuts for me.
    0247-315386.
     
  16. psychobunny

    psychobunny Member

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    3 things:
    1: HDPE is a pain with a router (also with a laser btw)
    2: internal corners (as mentioned above)
    3: really simple job that doesnt warrant cnc, print off a template on paper, doublesided tape onto the material (or draw it on) then use a jig saw or a bandsaw
     
    pinchies likes this.
  17. DSTM (Dougie)

    DSTM (Dougie) Member

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    Why so thick?? Armour plate? LOL I file inside corners.
     
  18. akashra

    akashra Member

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    Hey all,

    I'm looking at shopping around for places that can help me make something for a food-based project, but though I'd ask here first. You can buy commercial products for this - but they're anywhere from $800 to 3500, and I want a smaller unit.

    I'm looking to make a device that will need maybe about 10 different pieces cut - but the main one is going to be a sheet of 3mm stainless steel that would be probably about 480mm x 280mm, with about 20 1mm long cuts in it.
    This would need to be laser cut as the spacing needs to be extremely precise.
    It'd be:
    4 L-shaped pieces to make a square frame; 2 opposite ends with precise laser-cut holes to run metal wire or strong PVC/fishing wire between; one piece with holes drilled to mount to a pivot.
    1 of the main 480x280-ish piece bent in 4 places to give it two wide (280mm) feet around 20mm long, raised about 100mm high, and the remaining length (what's that, about 240mm?) being a surface things are placed on.
    2 pieces for base of sturdy stainless that the surface mounts on to those feet.
    2 pieces that mount on to that base and provide a pivot point for the frame.

    Is there anyone around here I could maybe flick some specifics to to see if they can give me an idea of how much I might be looking at to complete this?
     
  19. OP
    OP
    oRiCLe

    oRiCLe Member

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    3mm sheet of stainless with a laser would probably need a high 5 probably 6 figure fibre (or similar) laser for that or finding someone with one that can fit a one off into their schedule, i'd say you're probably not going to find what you're after on here as most hobby lasers are CO2 (so non-metal cutting)

    I think it would be tough to find it affordably as a one-off also for someone with capable equipment :S you'd probably end up over the cost of the commercial ones as a one-off? If it is just long cuts in the square flat sheet you could probably find an engineering shop that could mill the holes sheet for you with a CNC mill and get the steel cut with a shear or from a metal supplier, would probably be more in the price range, or a 1 to 2-op process with a slot cutter and some cleanup on a 5-axis :D

    let us know how you go sourcing the work or if someone one here can help you out :D
     
  20. akashra

    akashra Member

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    What about 6mm thick sheets of HDPE?

    I could achieve the same effect for what I want to create by using about 40 HDPE pieces cut with the same template about 10mm x 30mm with a small lip on one end (see below)- and then using 1mm spacers between the pieces. An advantage to doing it this way could be that I could use a pedestal drill to precisely place a drill hole of two or three metal rods to pass through the array of upright plates, perfectly positioning them. You then end up with a flat surface on top - might have to just run a planer across them with the pins in place to make the surface perfectly level.

    Anyone want to hazard a guess what cutting these might cost instead of doing it on metal?


    The dimensions would therefore be:
    Top edge: 280mm, 20mm rise, to complete the top edge 20mm.
    Right edge: 120mm
    Bottom edge: 300mm
    Left edge: 100mm.

    6mm depth.

    Edit: Some quick research tells me that I can buy a 3000x1500mm sheet for $308 - which would be sufficient size to cut 44 per sheet (minus a few mm for the width of the laser). So it's really about the cost of the labour.
     
    Last edited: Jul 12, 2019

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