584,833 active members*
5,413 visitors online*
Register for free
Login
Page 2 of 2 12
Results 21 to 26 of 26
  1. #21
    Join Date
    Jan 2005
    Posts
    15362

    Re: 30x30" open source CNC machine design

    Quote Originally Posted by aluminumwelder View Post
    so I want to buy a hobby machine and you are telling me I could get my own custom extrustions made if I only spent $25,000? LOL talk about not understanding my needs. Some people just go way overboard. The only people that are going to pay to get custom dies made and stock pile 5 tons of aluminum are cnc manufacturer's not hobbiests, I thought that would be obvious !
    First off you said you could make it for X amount of dollars, then you complained that you could not find extrusions that you could epoxy steel tube into, I gave you some choices did not say you had to have your own extrusions made but what is possible

    Quote Originally Posted by aluminumwelder View Post
    only machine I could find that uses rack and pinion and is under $2000
    https://millrightcnc.com/product/mil...router-bundle/

    not being sold till spring of 2020 anything that is currently available less then $2000 and around 24x24" at least , 30x30" would be better?
    So why do you keep looking at the same kind of junk !! build your own most people can do better than what you can buy the cheap junk for figure out a design type you want and go for it
    Mactec54

  2. #22
    Join Date
    Mar 2003
    Posts
    35538

    Re: 30x30" open source CNC machine design

    Anything under $5K-$7K is a tradeoff, price vs performance.
    The only thing that matter is if it meets YOUR expectations. For most of the members here, those cheap machines are just not good enough. Some people take their hobbies more seriously than others.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  3. #23
    Join Date
    Apr 2013
    Posts
    21

    Re: 30x30" open source CNC machine design

    nevermind you have not helped me at all , you just like arguing bye.

  4. #24
    Join Date
    Jan 2005
    Posts
    15362

    Re: 30x30" open source CNC machine design

    Quote Originally Posted by aluminumwelder View Post
    nevermind you have not helped me at all , you just like arguing bye.
    Just for you here is someone that is having a problem with his machine, just the type you have been talking about https://www.cnczone.com/forums/uccnc...br /> cnc.html may be you could solve his problem for him
    Mactec54

  5. #25
    Join Date
    Jul 2018
    Posts
    6248

    Re: 30x30" open source CNC machine design

    Hi Alumweld - You need to think about what you want to do. You need to have a specification for what you want to do then the decision is made.The machine will do it or not. To answer your questions. 1) Yes its an excellent starter machine you will learn alot and it may or may not do what you want 2) adding more wheels does not improve the performance of the device. I've looked at many of these things and generally the ones with more then 3 or 4 wheels have wheels that are not working. At this quality level the extrusions, the eccentrics, the wheels etc its not possible to adjust everything so all wheels contact. Even if they did the middle ones would not be doing anything. Why do motor cars only have 4 wheels? same question and answer. My suggestion is that you will build a far better machine in plywood then the ones discussed and it will be cheaper.... if you want to understand the issues in designing a machine and what it has to do read the Maximus thread. It starts from scratch and works through most design issues. Cheers Peter

    https://www.cnczone.com/forums/austr...76822-cad.html

  6. #26
    Join Date
    Aug 2009
    Posts
    230

    Re: 30x30" open source CNC machine design

    I will mention this again: T-slot extrusions are stiff, cheap, and readily available. There is a whole ecosystem of connectors and parts that fit them. They can be cut with a regular miter saw, or even a hand saw if you are looking for a workout.

    There are many machines built from them; and there's even a whole sub-forum here for the subject: https://www.cnczone.com/forums/t-slot-cnc-building/

    Linear rails - both the round and the rectangular variety - are also available for not much money, from the same general sources as the T-slot extrusions. They just bolt on to the extrusions.

    Anybody with some basic skills, a bit of persistence, and willingness to read and learn from the resources freely available online, can make their own hobby-grade machine, and bring it in at a hobby budget. It's almost like playing with Lego, except you have to clean up the chips afterwords.




    P.s. - edited to add: if you get the round linear rails, be sure to get the fully supported version! It makes it much stiffer.

Page 2 of 2 12

Similar Threads

  1. Open Source ATC Spindle design
    By hive8 in forum Spindles / VFD
    Replies: 3
    Last Post: 12-26-2014, 10:59 PM
  2. Open Source plasma CNC table design
    By outlawstc in forum CNC Plasma / Oxy Fuel Cutting Machines
    Replies: 6
    Last Post: 09-08-2014, 08:53 PM
  3. Open source Windmill design.
    By gavztheouch in forum Environmental / Alternate Energy
    Replies: 84
    Last Post: 06-28-2014, 11:58 AM
  4. I want to open source my design
    By tonydiethelm in forum DIY CNC Router Table Machines
    Replies: 3
    Last Post: 09-08-2012, 06:16 PM
  5. desktop size CNC (is there any open source design?)
    By error404 in forum Open Source CNC Machine Designs
    Replies: 7
    Last Post: 02-22-2011, 09:59 PM

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
  •