603,350 active members*
3,463 visitors online*
Register for free
Login
Results 1 to 10 of 10
  1. #1
    Join Date
    Sep 2007
    Posts
    9

    Machined Plastic Parts

    Looking for a quote for machining of plastic parts from Delrin (black) or similar Engineering Nylon.

    Assembly dwg for information only. We will install inserts etc at this end.

    Machine finish is important, as are clean radii. But tolerances are not critical (+/- 0.2mm)

    Dwg attached, but this is what the end product looks like

    Please quote for quantities 25, 50 and 100 pieces each and lead times.
    I'll need to see a sample of GH-02 and GH-03 to check the finish before comitting to purchase in quantity.

    Regards,

    KevJ
    Attached Files Attached Files

  2. #2
    Join Date
    Feb 2006
    Posts
    196
    Kev,

    While finish is important, do the parts need to be as high gloss as the photo appears?
    Doug Pryor
    David Wolfe Design, Inc.
    Akron, OH
    www.davidwolfedesign.com
    [email protected]

  3. #3
    Join Date
    Sep 2007
    Posts
    9
    Most of the gloss in this image is from silicon spray

    A consistent machined finish is fine.

  4. #4
    Join Date
    Apr 2006
    Posts
    100
    Kev
    Do you need just GH-02 And GH-03 or all of the part numbers in the drawing quoted.
    Thanks
    Mike Hesse
    Owner
    Hesse Machine
    [email protected]
    www.hessemachine.com

  5. #5
    Join Date
    Sep 2007
    Posts
    9
    Hi Mike,

    I need pricing on GH-02, GH-03, GH-04 and GH-05

    Regards,

    KevJ

  6. #6
    Join Date
    Feb 2006
    Posts
    196
    Kev,

    Do the 2.0mm rad fillets need to be machined on? Or can the edges just be broken? This would require 2 machining set ups.

    Also, could the width of the parts be 19.05mm (.75") instead of 20.0mm? That is standard material thickness here in the US.
    Doug Pryor
    David Wolfe Design, Inc.
    Akron, OH
    www.davidwolfedesign.com
    [email protected]

  7. #7
    Join Date
    Sep 2007
    Posts
    9
    In the past the 2mm rad fillets have been put on with a router table by highly skilled artisans, with the odd finger missing

    Cutting from 3/4" stock would be acceptable if the stock surface finish was clean.

    Previously we've had these:

    Machined on a mill - Bridgeport J2 with manamatronic control system
    Excellent quality, but so painfully slow that I was tempted to stick my head under the spindle to end it all.
    Cut on a router - unfortunately the finishing cut was done in a double pass and this left a less than ideal finish. Then edge fillet and holes.
    Waterjet cut profile - then edge fillet and holes - Unfortunately we never seemed to have much luck with the waterjet pieces - lots of wavy cuts, tapered parts and some parts that were not even the right shape.
    Not to mention the surface finish ...

    Open to suggestions on a better way to skin this cat.

    Regards,

    KevJ

  8. #8
    Join Date
    Jul 2007
    Posts
    3
    Kev,
    How much longer will this RFQ be open.

    Thanks

    Steve Peyton

  9. #9
    Join Date
    Sep 2007
    Posts
    9
    If you want to make a quote within the next few days, please go ahead, otherwise please consider this closed.

    Thank you to those who submitted prices.

    Regards,

    Kevin

  10. #10
    Join Date
    Nov 2006
    Posts
    382
    Looks like to me waterjet and cnc combo would work the best here. The waterjet is probably needing a back-up or sacrificial material. I work with a cnc where I am and a waterjet friend down the road. We will look at the parts and see what we can do.
    [email protected] we could also possibly put some of the part in an existing molding base and injection mold the parts. We do long and short run molding.
    Jetski (alias Tooling and Engineering Czar)
    "I may not have the keys to success.. but I have learned to pick the locks"

Similar Threads

  1. Need a few small machined parts
    By justhman in forum Employment Opportunity
    Replies: 4
    Last Post: 04-21-2008, 06:22 PM
  2. Controlling How Parts Get Machined
    By Mastercam User in forum Mastercam
    Replies: 8
    Last Post: 12-11-2007, 07:17 PM
  3. Nesting machined parts
    By cncuser1 in forum Mastercam
    Replies: 4
    Last Post: 10-29-2007, 02:37 PM
  4. RC parts machined wanted
    By tyrc racing in forum Employment Opportunity
    Replies: 0
    Last Post: 05-27-2006, 10:09 PM
  5. Need parts Machined??
    By tizank in forum Employment Opportunity
    Replies: 32
    Last Post: 10-25-2005, 02:28 AM

Posting Permissions

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