Help on cnc convert for a smithy 1324 - Page 2

Page 2 of 2 FirstFirst 12
Results 13 to 24 of 24

Thread: Help on cnc convert for a smithy 1324

  1. #13
    Gold Member
    Join Date
    Jun 2006
    Location
    Suffolk, UK
    Posts
    2512
    Downloads
    0
    Uploads
    0

    Default

    I don't think direct drive with manual operation is going to work, assuming you use ballscrews as the pitch will be to large for manual use. You could possibly stick with acme leadscrews and direct stepper drive and put up with the inevitable backlash issue. You should investigatermore as to why the Smithy option uses a belt drive, there is probably a good reason that you should understand before you jump.

    Phil

    Quote Originally Posted by cadsolidworks33 View Post
    Guys
    I've look around and cant find any thing on cnc for a smithy machine. Besides smithy products, which I'm not comfortable with astepper motor and a belt pully drive. I like to find where it's direct drive double end stepper motor setup. That can do a 3 in 1. their should a program that could split up operations with a 3 in1.


    Tim




  2. #14
    Registered
    Join Date
    Jan 2007
    Location
    USA
    Posts
    14
    Downloads
    0
    Uploads
    0

    Default

    where can i get lead screws and what would the cost be.

    Tim



  3. #15
    Registered
    Join Date
    Jan 2007
    Location
    USA
    Posts
    14
    Downloads
    0
    Uploads
    0

    Default

    My Dad is old fashion but it's his machine. I'm trying to help out and see whats the best way and find someone close to help out.

    Tim



  4. #16
    Registered
    Join Date
    Jan 2007
    Location
    USA
    Posts
    14
    Downloads
    0
    Uploads
    0

    Default

    One of my friends told me that Mach3 was the best out their for software. Plus my dad dosen't trust belt drive pullys.

    Tim



  5. #17
    Registered
    Join Date
    Dec 2006
    Location
    usa
    Posts
    3
    Downloads
    0
    Uploads
    0

    Default

    You can buy a crank handle that simply drives the stepper motors directly, I believe they can be calibrated to whatever step distance you want. I think they are pretty reasonable as well. Try Littlemachineshop.com.



  6. #18
    Registered
    Join Date
    Apr 2007
    Location
    USA
    Posts
    19
    Downloads
    0
    Uploads
    0

    Default

    Hi,
    My name is Del and like Tim I'm having difficulty finding a CNC conversion for my Smithy. Mine is a discontinued 3-1 model MI-1720 CNC. How would I learn to do it myself as TPMX did?? I can build many things but for this I will need a plan! I'm interested in shape cutting brass and al. with the mill. Any help appreciated!



  7. #19
    Registered
    Join Date
    Feb 2008
    Location
    usa
    Posts
    1
    Downloads
    0
    Uploads
    0

    Default

    I may be interested in getting the ball screws that you used to retrofit your Granite 1340 TPMX. I would like to know also if you were able to use ballscrews on the Z-axis - I think that I will try to answer that question myself by going to the Smithy display site that you suggested above. Thanks in advance - Keith



  8. #20
    Registered Mrsonso's Avatar
    Join Date
    Jun 2008
    Location
    USA
    Posts
    19
    Downloads
    0
    Uploads
    0

    Default

    Tim,
    I have been looking to convert my Smithy also. Here is a link to a guy that has done one already. If you have any questions let me know.
    SMITHY 1220LTD CNC CONVERSION



  9. #21
    Registered
    Join Date
    Jun 2005
    Location
    USA
    Posts
    2
    Downloads
    0
    Uploads
    0

    Default

    I have a Smithy 1324 MAX and was looking at CNC options. I came across the link to the 1220 conversion above. It is using direct drive steppers at over 1000 oz in on ball screws.

    The kit that Smithy sells for over 4k only has 424 oz in steppers and I assume they have you using the factory screws. I have also noticed that they have a kit to attach the motors via pulleys and belts that seems from the pictures to be a gear reduction. It may be that the Smithy kit is just very slow??

    Can anyone comment on what they used for a motor screw combination?

    Thanks!



  10. #22
    Registered
    Join Date
    Feb 2009
    Location
    usa
    Posts
    150
    Downloads
    0
    Uploads
    0

    Default

    Quote Originally Posted by FabMonkey View Post
    I have a Smithy 1324 MAX and was looking at CNC options. I came across the link to the 1220 conversion above. It is using direct drive steppers at over 1000 oz in on ball screws.

    The kit that Smithy sells for over 4k only has 424 oz in steppers and I assume they have you using the factory screws. I have also noticed that they have a kit to attach the motors via pulleys and belts that seems from the pictures to be a gear reduction. It may be that the Smithy kit is just very slow??

    Can anyone comment on what they used for a motor screw combination?

    Thanks!
    You are probably well aware of the milling limitations already. If you do the CNC conversion you will be in the same situation- you will have an OK cnc lathe at best. Following is a link to a guy who had 2 of them he spent about 13K on and was dumping them for around 3K.

    2 ea Smithy Granite 3-in-1 Mill Drill Lathe + CNC & DRO - eBay (item 360322280721 end time Dec-03-10 14:31:21 PST)



  11. #23
    Registered
    Join Date
    Jun 2005
    Location
    USA
    Posts
    2
    Downloads
    0
    Uploads
    0

    Default

    Thanks for the reply.
    I did not see any info in the description on that auction about screws and motor sizes.

    They lathe seems solid to me. I have not done much with the mill yet but will only be milling aluminium or plastics.

    My thoughts are that I will remove the factory nuts/screws and get ball screws and install an encoder on lathe so I can still thread. I have no issues using the machine via the jog wheel on a VCP for simple things.



  12. #24
    *Registered User* avengeusa's Avatar
    Join Date
    Jan 2019
    Posts
    4
    Downloads
    0
    Uploads
    0

    Default

    I have a granite 1340 that I am wanting to convert to cnc and ball screws

    no handles needed

    should i just direct drive, or go the belt route like smithy did, If i go direct drive what steppers should i be using

    I need to know where to start, and there are no cnc conversions to be purchased, so this will be a part together kit

    I have fusion 360 and plan on using that

    There are kits on ebay with the three steppers, drivers, and other parts for 3 axis

    ANY information that I can get would be helpful and appreciated



Page 2 of 2 FirstFirst 12

Tags for this Thread

Posting Permissions

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


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Help on cnc convert for a smithy 1324

Help on cnc convert for a smithy 1324

Help on cnc convert for a smithy 1324