584,837 active members*
5,879 visitors online*
Register for free
Login
IndustryArena Forum > MetalWorking > Moldmaking > SP3 DIY injection molding guide
Results 1 to 17 of 17
  1. #1
    Join Date
    May 2010
    Posts
    34

    SP3 DIY injection molding guide

    Hey guys,

    I just posted my injection molder on ebay for sale. It didn't come with a manual so I made a youtube video showing how it works. I was thinking this video might help people learning about DIY injection molding so I thought I would post it here in case anyone is interested.

    Here is the video

    SP3 injection molder for sale - YouTube

    Here is my ebay post

    SP3 injection molder for sale - ebay

  2. #2
    Join Date
    Sep 2012
    Posts
    1543
    I'm interested, have you made any rubber parts, or all hard plastic?

  3. #3
    Join Date
    May 2010
    Posts
    34
    Quote Originally Posted by BAMCNC.COM View Post
    I'm interested, have you made any rubber parts, or all hard plastic?
    I've made some rubber parts. The game gripper is an 80 durometer tpe called dynaflex. The game gripper comes with hard plastic buttons or rubber buttons(out of the same mold ofcourse). I have some samples of other durometers of dynaflex I can include if you win the auction.

  4. #4
    Join Date
    Sep 2012
    Posts
    1543
    Did you take the auction down?

  5. #5
    Join Date
    May 2010
    Posts
    34
    Quote Originally Posted by BAMCNC.COM View Post
    Did you take the auction down?
    Ebay pulled the listing because I posted a link to my video. I re-listed it and embedded the video like they told me to.

    SP3 Injection molding machine & mold | eBay

  6. #6
    Join Date
    Mar 2005
    Posts
    15

    Re: SP3 DIY injection molding guide

    Has anyone here made a machine like this?

  7. #7
    Join Date
    May 2010
    Posts
    34

    Re: SP3 DIY injection molding guide

    A bunch of people have asked about this machine over the years I don't think anyone ever built one.

  8. #8
    Join Date
    Mar 2005
    Posts
    15

    Re: SP3 DIY injection molding guide

    Quote Originally Posted by Hyrum View Post
    A bunch of people have asked about this machine over the years I don't think anyone ever built one.

    Hyrum:
    thanks for taking the time to reply...

    I may give building a "clone" a shot....

    could you tell me if the two main horizontal rods were 1" or larger? also, were they aluminum?

    thanks

  9. #9
    Join Date
    May 2010
    Posts
    34

    Re: SP3 DIY injection molding guide

    1" steel bars threaded on each end with 1/2" socket head cap screws with Wentworth threads. I lost one on those bolts and was not able to find a replacement. I was not confident I could make a replacement screw so I replaced the bar and tapped each end with 1/2-20 holes on each end.

    In order to be safe you need to do a little math. An aluminum bar would certainty have striped out on you and the whole machine would come apart on you.

  10. #10
    Join Date
    Mar 2005
    Posts
    15
    thanks Hyrum.

    intuition was telling me the same thing before i ever dug out rhe calculator.

    thanks for the reply/confirmation!!!

  11. #11
    Join Date
    Mar 2016
    Posts
    6

    Re: SP3 DIY injection molding guide

    Any updates on a clone of Hyrum's machine? I just started educating myself on injection molding machines and really enjoyed Hyrum's video and experience. Right now I'll probably get started with a Medium Machinery injection molder, unless some of you good folks persuade me otherwise. The budget is tight so buying a professional machine would be a real stretch.

  12. #12
    Join Date
    Apr 2007
    Posts
    9

    Re: SP3 DIY injection molding guide

    Any updates on the clone build?

  13. #13
    Join Date
    Oct 2011
    Posts
    1

    Re: SP3 DIY injection molding guide

    Quote Originally Posted by Mason Dixon View Post
    Any updates on the clone build?
    I've been working on a 3D drawing of The Small Power Co. SP3 injection molding machine part-by-part based on resizing Hyrum's photos of the machine (I'm assuming the floor tiles are 12-inches square) and learning what I can also from his documents.

    Small Power, from what I can find out, is out of business. Is there any sort of legal problem using this machine as a basis to create a home unit for one's use? I'm 3D drawing the machine (I will apply motion to ensure the thing works properly, on the PC anyway) but will likely alter it in some ways for a build, such as a horizontal plunger assembly.

    I'm posting here to "flush out" ;-) interested persons who might wish to collaborate on developing a machine, one that also might operate via Cayenne and Arduino at some point. Are there knowledgeable people here about injection molding machines? I have read quite a bit, including a couple of professional books, but I have a great deal more to learn and questions to ask.

    Brian Chapman
    Cedar Rapids, Iowa / USA

  14. #14
    Join Date
    Oct 2010
    Posts
    1189

    Re: SP3 DIY injection molding guide

    I might be interested Can help with control but i have to finnisch atc First ,..


    Gesendet von iPad mit Tapatalk

  15. #15
    Join Date
    Aug 2017
    Posts
    7

    Re: SP3 DIY injection molding guide

    Hi all, I've made injection machine based on this machine. You can check it out. Machine is working but I've got some updates in mind.
    Here is the video:

  16. #16
    Join Date
    Apr 2014
    Posts
    432

    Re: SP3 DIY injection molding guide

    That is a great molding set up i watched your over molding vid as well it was fantastic thank's for your effort,gave me some good ideas.

  17. #17
    Join Date
    Aug 2017
    Posts
    7

    Re: SP3 DIY injection molding guide

    Thx InMesh! I've started new thread here http://www.cnczone.com/forums/moldma...43178-cad.html

Similar Threads

  1. Injection molding
    By Fading_fast in forum Want To Buy...Need help!
    Replies: 5
    Last Post: 03-11-2012, 01:22 PM
  2. Basic knowledge of injection mold and injection molding-4
    By vulcanmold in forum News Announcements
    Replies: 0
    Last Post: 11-10-2010, 05:23 PM
  3. Basic knowledge of injection mold and injection molding-2
    By vulcanmold in forum News Announcements
    Replies: 0
    Last Post: 11-10-2010, 05:10 PM
  4. Basic knowledge of injection mold and injection molding-1
    By vulcanmold in forum News Announcements
    Replies: 0
    Last Post: 11-10-2010, 05:03 PM
  5. Injection Molding Help
    By cjs83 in forum Moldmaking
    Replies: 25
    Last Post: 11-09-2009, 08:38 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
  •