I have watched ALL of the MMXL vids and I was wondering if there is a "savings" to do it your way compared to just buying the C-Beam Machine since the MM is already $170 cheaper? I am in the market to buy one of these machines but each has it's downfalls/limitations. Please LMK as I am looking to buy withing the next few days. It would also be nice to see a BOM needed to do this overhaul. Thanks for your time and I enjoyed watching all of the vids for the build! I look forward to hearing back from you.
@sloscotty
6 жыл бұрын
If you don't already have a MiniMill, then the best route is to buy the C-Beam machine. The upgrade videos are mainly meant for people (like me) who got the MiniMill, and then decided it wasn't quite "big enough", but didn't want to buy a whole 'nother machine. The parts list (BOM) for the upgrade is at the official MMXL Build posting on the OpenBuilds Forum: openbuilds.com/builds/mmxl-a-minimill-conversion.5813/
@sloscotty
6 жыл бұрын
An additional note: If you do decide to go with a C-Beam machine, check out metalguru's build for some nice improvements: openbuilds.com/builds/improved-cbm.5608/ . (You'll still need the C-Beam Machine kit, plus a few extra parts.)
@syc0pthicmaniac914
6 жыл бұрын
Just curious, what is the total price above the actual cost of the mini mill compared to the C-Beam Mill?
@sloscotty
6 жыл бұрын
The additional parts to upgrade the MiniMill to the MMXL as shown in the videos is $160 (plus shipping). The MiniMill hardware kit is currently $400 - so $560 (+ shipping). The C-Beam Machine hardware kit is currently $570 (+ shipping). Both machines require the same power, control, electric setup. So overall, the costs are about the same. Notice that the overall build area on the MMXL is greater because I wanted the extra length on the Y-axis. You could save about $30 more by building a 500mm Y-axis on the MMXL instead of the 1000mm (C-beam and leadscrew), and that would give you a build area more similar to the C-Beam Machine (a little narrower however). One advantage to going for the MMXL is that you could start with the MiniMill to learn on and get all of your electronics sorted, etc - Then upgrade later. (I'm still upgrading, btw :D )
@trieuhanminh1992
3 жыл бұрын
I use dual Y? How to axis X perpeldiculer axis Y?
@sloscotty
3 жыл бұрын
If you leave your spoil board attached and fixed in place (to keep your two y-rails parallel to each other), you should be able to use the same method. Note, that I have two brackets on each end of my single y-rail (one on each side). I loosened all but one and used that one as my pivot point. If you have 2 rails, then you probably have 8 brackets. You would loosen 7 of the brackets, and use the other one to pivot the entire assembly including spoil board. You DON'T want to do each individual rail separately with this method, because then the distance between your rails would change and you might get binding. Hopefully, you won't have to adjust much more than I did. You will have to take care to make sure your rails remain fixed relative to each other if you use this method. I think if I were attempting it, I would add some sort of fixture across each end of the rails to hold them together. (Like a couple of lengths of 20x20 extrusion bolted to each rail, or maybe a couple of pieces of wood with holes drilled and fastened to the tops of the rails with T-nuts. Or better yet, block your carriage and spoil board, front and back, centered on the axis to lock it in place.)
@trieuhanminh1992
3 жыл бұрын
@@sloscotty how do I know how far off the y1-axis is from the y2-axis mm?
@sloscotty
3 жыл бұрын
@@trieuhanminh1992 They should be parallel. If the distances aren't the same, you should definitely correct that. Can't advise you since I don't have dual y-axes.
@trieuhanminh1992
3 жыл бұрын
@@sloscotty i don't understand (80000-80315)/80000?
@sloscotty
3 жыл бұрын
@@trieuhanminh1992 It's just from the formula (at 6:59). a^2 + c^2 = 80000 ; b^2 = 80315.56; 2*a*c=80000. You might want to look up "Law of Cosines"
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