Open The-Original-Reth opened 1 year ago
Vitalii3D-xyz
commented
1 year ago Thank you for your analysis! I trust your results, but the same time it is really hard to think that 2 bolts will add rigidity that MGN rail doesn't have. I have early prototypes that weight more but are much more rigid, if you are interested then I can send them to you to confirm if results are related to rigidity issue.
The-Original-Reth
commented
1 year ago Maybe lack of rigidity is not the right word. And, my conclusion on any potential fix from the data could be completely off. However, I do believe there is an Rx rotation.
I can do further testing. later. I have ordered a second 50mm linear rail for testing purposes.
I would be interested in testing your early prototypes. DM in voron discord. Name is Reth
The-Original-Reth
commented
1 year ago This is the results of my testing. Please feel free to message me if you have any questions
chasebolt
commented
11 months ago Curious to see more testing around this. Very interesting test results @The-Original-Reth.
The-Original-Reth
commented
11 months ago Different Tap Testing.pdf This is all the testing I have done with TAP
Ni2Be
commented
9 months ago I also did some testing with a light weight gantry installed. With the R8 I had a weird PSD that was pretty low but couldn't really be compensated with any function (maybe an unlucky interplay with the light weight gantry - before the light weight it looked more normal).
With the CNC it looks all normal:
@The-Original-Reth very interesting analysis, did the strange small peaks get away after replacing the bearings? I once had a super small crack in the left plastic part of the gantry that caused a similar graph.
The issue I am seeing with the Vitalii CNC tap is a common issue around different CNC TAPS. This issue is a lack of rigidity in relation to rotational movement Rx, and Ry. This rotational movement shows up as a Z movement in the toolhead. As stated in the picture plastic tap takes care of this issue with the two screws through the Linear rail attached tap side. Vitalii tap may be able to take care of this movement by created two ribs in the x-direction on the the tap linear rail side which extend vertially along the toolhead mounting side.