Board mount needs verification

[3dGriff]

The board mount solution needs to be verified for dimensional accuracy. Will test and update.

[3dGriff]

Base dimensional accuracy check complete:

Adjustment needed to fastener holes, not enough clearance for M3x8mm bolts.

will update when cover completes

Update:

@BotleHewer the way I see it we have two options to fix the fastener clearance issue: we can increase the depth of the base, or we can increase the height of the fastener risers and compensate for this in the top.

Personally, I think increasing the depth of the base is the most logical solution but you are more familiar with the part so what do you think?

[3dGriff]

Cover:

Model needs to be reworked for slicing.

When modeling smooth curves for 3d printing the curve needs a defined break point for proper slicing. Without this break point the slicer cannot accurately define consecutive layers of the (upward) curve.

In this case the slicer generates a false overhang causing infill to be printed in air.

I have included a screen cap for reference. Note the yellow tool paths are infill moves.

currently retesting print with slicer defined (part) z offset -.2 to eliminate first layer as a work [around]

Note: This effect can be eliminated by adjusting your extrusion width in the slicer. This is likely why you did not notice prior to upload. For repeatability we should repair the issue now. I was previously unaware of this specific issue with curves, we might want to look into it deeper and share our findings.

I have a feeling based on the slice dimensions and tool paths that this could produce less obvious issues with the print impacting both the end quality and success rate for curved models.

From a more technical standpoint it's worth mentioning that bridging manipulators do not get assigned to infill tool paths. The test machine is running the Odin Mesh Auto Bed Level, the following are functions of the ABL that likely impact this issue:

• ABL dynamically adjusts Z height based on the correction matrix
• ABL does not apply dynamic Z height adjustment when bridging
• ABL does apply Z height adjust for infill moves

When the machine receives the infill movement, it executes with slicer defined (feature) adjustments for infill movement, although in this case we are technically bridging. The curve in question is ~30degrees... but the slicer artifact results in an actual angle of 90degrees. In normal cases, on the current Mentos_RC build this would likely be less of an issue as the z height is static, however, the ABL distro attempts to print the 90degree overhang while also manipulating the Z Height causing major failure in the part.

@BotleHewer

[3dGriff]

In a move to continue the focus on reducing individual parts I have modified the base to be printed with the mounting brackets. @BotleHewer thoughts?