Joe's CNC 4x4 Hybrid

[joecnc2006]

Well we are working on making the machine even better, with the new mods i am doing the new machine should perform just as good as a shop bot if not better, for a fraction of the cost to build.

I am working in spare time while the machine is working, So i will be building it and taking exact notes.

Joe

[biotech1]

Dang it good thing i decided to wait... What kind of new mods are you doing will i be able to make the parts with my current joe2006... It just keeps getting better and better--any specifics you willing to tell will we need to upgrade our stepper motors bigger lead screw???


Joe2006- Topeka Kansas
Pat..

[bp092]

As the traditions continues you can use one machine to build the next. Needless to say this one has less MDF, more metal and more power. Even so, no welding, (K.I.S.S. method) as always..

Specifics? We are still working those out. Updates to come, but it will be one heck of a solid machine.

[scott wiggins]

Updates??

[timericdesign]

Joe,
this is actually my official 1st post on the zone, been lurking for a while trying to decide what to build. I had talked to you about a kit over on the yahoo site for the 2006 but this design is even more interesting. I do have a question about the bearings on the x and y axis tho, are you using the same type of bearing as on the 2006? And did you consider using linear bearings that slide in the Tslot like shown on Faztek's site? I'm sure you thought of linear but maybe the rod/bearing setup similar to the 2006 is a bit more cost effictive. Just curious how you decided on the setup you went with and if the choice was driven more by cost or performance. Or both . Sorry if this if this has been covered or seems like a dumb questions but i'm just getting into the world of cnc and am trying to soak up as much knowledge as I can before building.
Thanks
Tim

[joecnc2006]

Well I did away with the Skate bearings, and I will go ahead and spill the beans , I am using V-Bearings on all Axis, this is the major Mod i am doing.With the v-bearings it is much easier to mount the rails to the 80/20. Also using a different leadscrew. Do not get me wrong the 4x4 i have now is great, But i wanted it better and make plans that would be on a higher level for a Great DIY Machine which will perform just a good as a shopbot or others at less that 1/5th the cost.

Its time to step it up a notch.

Joe

with the v-bearings it is much easier to mount to the 80/20.

[timericdesign]

Joe,
Thanks for the reply, that is great!! I am so thankful for all of your hard work, I can't wait to see the mods and your final machine. I also can't wait to see the final plans and or Kit you may offer. I will most definatley support your hard work by purchasing a kit for this machine, if you offer one. You should post up a paypal link for people to donate to your R&D !! I am anxious to see the final beast and get started on a machine of my own, but take your time and do it right, it will be well worth the wait! If there is anyting I can do to help drop me an email, I can help with cad details or a pdf manual, mat'l list yada yada yada...........sometimes the more daunting task of a new design is getting all the drawings in order. Of coarse having someone else help might just slow you down too! Thanks again and I think I speak for all of us when I say good work and we are lucky to have an asset like you here on the forums.

[timericdesign]

Joe,
I have one more question for you if you don't mind sharing, are you keeping the same size extrusion on the updated machine? I found some 25-5010 x72"80/20 on the garage and it is pretty reasonable. I am starting to scavange some pcs together and just wanted to see if that is what your still using for the 3 rails. I figured if so i'd grab 3 pcs while I found them. I'll wait to get the rest of the hardware until your done with your design!
Thanks
Tim

[joecnc2006]

Originally Posted by timericdesign Joe, I have one more question for you if you don't mind sharing, are you keeping the same size extrusion on the updated machine? I found some 25-5010 x72"80/20 on the garage and it is pretty reasonable. I am starting to scavange some pcs together and just wanted to see if that is what your still using for the 3 rails. I figured if so i'd grab 3 pcs while I found them. I'll wait to get the rest of the hardware until your done with your design! Thanks Tim

Yes the design still uses Three 80/20 (they have them for 47 dollars each now, Mike told me they found some more when i bought the last ones from him and he would put as many as he could in the e-bay store) they are used for both the X-and Y Axis of the machine.

Joe

[bgriggs]

Originally Posted by joe2000che Well I did away with the Skate bearings, and I will go ahead and spill the beans , I am using V-Bearings on all Axis, this is the major Mod i am doing.With the v-bearings it is much easier to mount the rails to the 80/20. Also using a different leadscrew. Do not get me wrong the 4x4 i have now is great, But i wanted it better and make plans that would be on a higher level for a Great DIY Machine which will perform just a good as a shopbot or others at less that 1/5th the cost. Its time to step it up a notch. Joe with the v-bearings it is much easier to mount to the 80/20.

Will the V-bearing modification be backwards compatible? I have already started cutting the pipe mounts... I was growing impatient and have a machine already.

V-Bearings add a lot of expense to the machines final cost.

Bill

[joecnc2006]

I used 4 already for the Z-Axis, and with this one I got 12 more for the X and Y Axis so at 11 dollars each, that came out to an extra $132.00, now from that cost remove the cost of 24 skate bearings (lets say 25.00) and the cost of the HDPE for the old version Pipe rail suports (about 30.00) not to mention the time to cut, drill and tap the HDPE and Also ensuring the Tap on the Pipe rails are perfectly straight. So the cost difference to me was well worth it.

Joe

[alexccmeister]

Originally Posted by joe2000che That is exactly where i got mine 4 bearings and two each of the bushings, the two Concentric bushings are on the left and the two Eccentric bushings are on the right to pull the bearings snug against the Shelving mounting brackets. Here is a picture so you can see how the Shelf bracket is used, This thing is as hard as a rock. Joe

Hi Joe,

Really nice machine. Congrats. I like the idea of using the V bearing for the Z axis guide. Do you mind telling me what does it mean by the Concentric and Eccentric bushing? I went to check the website but they didn't explain the difference. I am just curious how the V-groove bearing can eliminate play in the guide if the distance between the two bearings left and right isn't exactly the same, or are they? Thanks.

Alex