Example Errors for CNC Turning

When uploading a model to meviy, a “Quotation failure” error may occur.
Below is an overview of why these errors occur and how to resolve them,as well as some example errors.

Case 1: Pocket Corners

*This message may appear for cases other than the following examples.

Pocket Corners

Cause

In some cases, sharp pocket corners cannot be machined with an end mill and quotation is not possible.

Solution

Add a radius to each sharp corner in the pocket to allow for the tool radius. Quotation is possible.

The tool used will vary depending on the width and depth of the pocket. Refer to the table below for the corner radius required for the size of the pocket.

*Please use the table as a reference only as the required radius may vary depending on the shape.

Reference values for Radius modeling

Width (w)	Depth (h)	Reference values for Radius modeling
2≦w＜3	5	R1
3≦w＜4	10	R1.5
4≦w＜5.5	15	R2
5.5≦w＜8	20	R2.75
8≦w＜9	25	R4
9≦w＜11	30	R4.5
11≦w＜17	40	R5.5
17≦w＜20	60	R8.5
20≦w	80	R10

Case 2: Pocket Bottom Radius

Pocket Bottom Radius

Cause

In some cases, the radius at the bottom of a pocket cannot be machined with an end mill and quotation is not possible.

Solution

Remove the radius at the bottom of the pocket from the model to get an automatic quotation.

Case 3: Thin Walls

Thin Walls

Cause

In some cases, thin wall parts cannot be quoted because the accuracy, including general tolerances, cannot be guaranteed.

The following shapes do not cause an error, but we may contact you to request a modification to the shape or tolerances due to thin walls.

Solution

If the wall thickness of the model is increased, automatic quotation is possible.

Click here for more information on the logic that determins thin wall conditions.

Case 4: Thin Plates

Thin Plates

Cause

In some cases, thin plates with a total thickness less than 5% of the outer diameter and an outer diameter of ø60mm or more are prone to warping and cannot be quoted.

Solution

If the thickness of the model is increased, automatic quotation is possible.

Increase the thickness of the model to more than 5% of the outermost diameter for automatic quotation.
Example Calculation
Outermost diameter ø60 × 5% = 3mm thickness
Outermost diameter ø100 × 5% = 5mm thickness

Case 5: The thickness of the edge

Flange Thickness

Cause	The thickness of the area indicated by the arrow above is less than 1mm.
Solution	The thickness must be 1mm or more for automatic quotation.

Case 6: Unrecognizable or Unavailable Shapes

The following error messages are displayed when there are unrecognized or unavailable shapes.

*This message may appear for cases other than the following examples.

Unrecognizable or Unavailable Shapes

Cause

Modeled Threads are an unrecognized shape in meviy.

Internal Thread

External Thread

Cause

Remove thread modeling and upload as shown below. Threads can then be specified in meviy.

*Internal threads can be specified.

*External threads can be specified.

*Threads can be specified in the dialog box after selecting the feature.
Refer to “Setting Inner Diameter Information” for the setting of internal threads.
Refer to “Setting Outer Diameter Information” for the setting of external threads.

Case 7: Shape recognition failure

This error occurs when there is a problem with the quality of the uploaded 3D CAD data, and the shape is deformed when it is loaded in meviy.
If the shape is deformed, please try the following steps to attempt to generate a quote.

State of original data

State after loading in meviy

Tip

The following message is displayed in the 3D viewer when this error occurs.
– “An error shape exists in the model.”
– “Failed to load file.”

1. Check the shape of the uploaded 3D CAD data.

Check the shape of the uploaded 3D CAD data.
If there is a problem with the shape, correct it and upload the model again.

Notes

Visual check
– Are there any twisted surfaces?
– Are there any unintended geometric features displayed in the cross-section view?
– Are there any very small shapes or gaps?

Check the shape creation method
– Are there any 3D shapes created without drawing sketches?
– Shapes created by importing lines from DXF
– Shapes created using reference geometry or mating part geometry
– Are there any intersecting lines created by intersecting holes?
– etc.

Confirm using CAD checking tools
– Check for inconsistent shapes

If there is no problem with the shape check or the model loading does not improve even after correcting and re-uploading the file, please try the next step 2.

２．Changing the file format

Upload the file again in a 3D CAD file format different from the one you originally uploaded.

Notes

– If meviy supports the native format of the 3D CAD file you are using, please try uploading in the native format.
– If you are using an unsupported format, please try uploading as a STEP or Parasolid.

If modifying the geometry and changing the file format does not fix the error, please contact meviy support.