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Testing with the Mill One V3 Y axis bed design

One of the parts that have been significantly changed on the Mill One V3 compared to the V1 and V2 is the design of the Y axis bed. We wanted to improve the rigidity of the Y axis, while allowing for more flexibility for wasteboard mounting and workholding. With this new two-part bed design, users can easily remove and switch out Y axis beds, and users can make their own beds if needed.

The steel Y axis gantry plate which will come with all V3 machines is far stiffer than the HDPE, which means a more rigid machine. You can see below based on some simple testing with a dial indicator and a 2-3 pound aluminum block, the difference in the amount of deflection that each machine experiences.

V3 deflection: Around 1-2 thousandths of an inch

V2 deflection: Around 5 thousandths of an inch

 

<noscript><img decoding=async class=wp image 6835 size large lazyload src=httpssiencicomwp contentuploads201807DSC02815 1024x575jpg alt= width=1024 height=575 srcset=httpssiencicomwp contentuploads201807DSC02815 1024x575jpg 1024w httpssiencicomwp contentuploads201807DSC02815 scaled 416x234jpg 416w httpssiencicomwp contentuploads201807DSC02815 300x168jpg 300w httpssiencicomwp contentuploads201807DSC02815 768x431jpg 768w httpssiencicomwp contentuploads201807DSC02815 660x371jpg 660w httpssiencicomwp contentuploads201807DSC02815 450x253jpg 450w sizes=max width 1024px 100vw 1024px ><noscript> Testing on the V3 without weight
<noscript><img decoding=async class=wp image 6836 size large lazyload src=httpssiencicomwp contentuploads201807DSC02816 1024x575jpg alt= width=1024 height=575 srcset=httpssiencicomwp contentuploads201807DSC02816 1024x575jpg 1024w httpssiencicomwp contentuploads201807DSC02816 scaled 416x234jpg 416w httpssiencicomwp contentuploads201807DSC02816 300x168jpg 300w httpssiencicomwp contentuploads201807DSC02816 768x431jpg 768w httpssiencicomwp contentuploads201807DSC02816 660x371jpg 660w httpssiencicomwp contentuploads201807DSC02816 450x253jpg 450w sizes=max width 1024px 100vw 1024px ><noscript> Testing on the V3 with weight
<noscript><img decoding=async class=wp image 6837 size large lazyload src=httpssiencicomwp contentuploads201807DSC02817 1024x575jpg alt= width=1024 height=575 srcset=httpssiencicomwp contentuploads201807DSC02817 1024x575jpg 1024w httpssiencicomwp contentuploads201807DSC02817 scaled 416x234jpg 416w httpssiencicomwp contentuploads201807DSC02817 300x168jpg 300w httpssiencicomwp contentuploads201807DSC02817 768x431jpg 768w httpssiencicomwp contentuploads201807DSC02817 660x371jpg 660w httpssiencicomwp contentuploads201807DSC02817 450x253jpg 450w sizes=max width 1024px 100vw 1024px ><noscript> Testing on the V2 without weight
<noscript><img decoding=async class=wp image 6838 size large lazyload src=httpssiencicomwp contentuploads201807DSC02818 1024x575jpg alt= width=1024 height=575 srcset=httpssiencicomwp contentuploads201807DSC02818 1024x575jpg 1024w httpssiencicomwp contentuploads201807DSC02818 scaled 416x234jpg 416w httpssiencicomwp contentuploads201807DSC02818 300x168jpg 300w httpssiencicomwp contentuploads201807DSC02818 768x431jpg 768w httpssiencicomwp contentuploads201807DSC02818 660x371jpg 660w httpssiencicomwp contentuploads201807DSC02818 450x253jpg 450w sizes=max width 1024px 100vw 1024px ><noscript> Testing on the V2 with weight

Testing was done on a very simple setup of a dial indicator pressing against the right side of each machine. The vice was lined up against the right edge of the bed for consistency. An aluminum block was placed on the opposite end. This allows us to compare the amount of deflection between the two designs.

One thing to note is that the Y axis gantry was an aluminum prototype that was milled out on the Mill One. Production machines will come with a laser cut steel gantry which is stiffer that aluminum. Because of this, we should be able to expect even better rigidity from production machines than from our prototypes.

Have a V2 machine but want to upgrade this part? You can get a kit that will update your machine here: https://sienci.com/product/v3-y-axis-bed-kit/