Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Page 5 of 7 FirstFirst 1 2 3 4 5 6 7 LastLast
Results 41 to 50 of 69

Thread: 1/32 model train car mold procedure

  1. #41
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Couldn't be a better day, the top roof mold came out perfect. Made two sides for the truck and they also came out good, ready to make some more parts for the truck. Bob.1/32 model train car mold procedure-img_0531.jpg1/32 model train car mold procedure-img_0532.jpg1/32 model train car mold procedure-img_0533.jpg

    186 More Best Homemade Tools eBook

  2. #42
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    More solidity for the ends. Bob.1/32 model train car mold procedure-img_0534.jpg

    2000 Tool Plans

  3. #43
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Continuing to mock up, almost there, waiting for some more urethane. Bob.1/32 model train car mold procedure-img_0535.jpg

  4. The Following User Says Thank You to machiningfool For This Useful Post:

    Paul Jones (Jun 20, 2016)

  5. #44
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    1/32 model train car mold procedure-img_0536.jpg1/32 model train car mold procedure-img_0537.jpgHere is another pattern done on my mill in Bondo for some more parts for the truck and another project. Bob. Thanks Paul.

  6. The Following User Says Thank You to machiningfool For This Useful Post:

    Paul Jones (Jun 22, 2016)

  7. #45
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Location
    Del Mar, California
    Posts
    1,231
    Thanks
    5,810
    Thanked 1,440 Times in 655 Posts

    Paul Jones's Tools
    Bob,
    Nice work on the trucks to ensure precision alignment (and smooth operation without derailments). I like the beginning work on the diesel cab unit. Is that for an F7 EMD locomotive A unit? That will be a fun project. I can just see an A-B-A consist pulling a string of your heavyweight passenger cars.
    Thanks for the updates.
    Paul

  8. #46
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Yes Paul, this cab was used on F and E-7, E-8 and E-9 units. Bob.

  9. The Following User Says Thank You to machiningfool For This Useful Post:

    Paul Jones (Jun 23, 2016)

  10. #47
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Here are some more molds of the f-7/e-8 cab and parts. Tomorrow, I will pour the third part to the mold for the cab and the front skirt. Bob.1/32 model train car mold procedure-img_0538.jpg1/32 model train car mold procedure-img_0540.jpg1/32 model train car mold procedure-img_0542.jpg1/32 model train car mold procedure-img_0541.jpg

  11. The Following User Says Thank You to machiningfool For This Useful Post:

    Paul Jones (Jun 29, 2016)

  12. #48
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools

    Ready to pour the third part of the cab mold section.

    The mold is ready to pour the third and final part of the mold set. *You experienced mold makers probably already knew this, but I had to find out the hard way. *A means of reducing pressure when installing the top of the mold set is needed so that the two mold section can seat, thereby reducing the chance of making too thick of a part and not retaining the desired shape. *Note the two channels glued to the highest part of the mold allowing the excess plastic to escape. *Not all is lost on my previous molds, because I can still cut a channel in the top pieces of the molds to achieve the same thing, which I will do on the side molds where that was a problem, so I just thought that I would pass this along in case any one out there is making molds. *In case someone is wondering if the the thickness of the walls will be retained, and the answer is, yes, note that the cab pattern is in the first part of the mold and by pouring the third part of the mold the walls will be retained. *The only reason I shared this is that someone asked if I was going to pour it solid, he didn't see that the cab pattern was still in the mold. The third part of the mold is to establish the thickness of the walls. *This mold set has three parts to allow removing the part once the pour hardens, it would be difficult to remove if only using a two part mold. Bob.1/32 model train car mold procedure-img_0543.jpg

  13. #49
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Hey guys, you forgot to tell me to put the bridge dowels in the third part of the mold, but that is OK, I remembered. *They might not have been necessary, but any help to prevent say in the mold is good, even a 1/32 of an inch is too much. *It also helps, when the plastic is poured in and the mold is compressed downward, it is solid and prevents compression, here is a picture. Bob.1/32 model train car mold procedure-img_0544.jpg

  14. The Following User Says Thank You to machiningfool For This Useful Post:

    Paul Jones (Jun 29, 2016)

  15. #50
    Supporting Member machiningfool's Avatar
    Join Date
    Jul 2015
    Location
    Seffner Florida
    Posts
    265
    Thanks
    0
    Thanked 271 Times in 146 Posts

    machiningfool's Tools
    Here is the first side rail out of the mold. Still making more parts for it, spring holders, leaf spring etc. Bob.1/32 model train car mold procedure-img_0545.jpg

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

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
  •