- HELP
- Technical Information
- CNC Turning
- Design Guidelines
- Example Errors for CNC Turning
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) | Radius |
|---|---|---|
| 2≦w＜3 | 6 | R1 |
| 3≦w＜4 | 9 | R1.5 |
| 4≦w＜5 | 12 | R2 |
| 5≦w＜6 | 20 | R2.5 |
| 6≦w＜8 | 24 | R3 |
| 8≦w＜10 | 32 | R4 |
| 10≦w＜12 | 40 | R5 |
| 12≦w＜16 | 48 | R6 |
| 16≦w＜20 | 64 | R8 |
| 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: Other holes
- If a hole is recognized as an “other hole” in meviy, it cannot be automatically quoted.
- Some examples of hole types that will be recognized as an “other hole” are shown below.
C – Chamfer
Chamfer other than 45
Tapered hole ①
Radius
Tapered hole ②
Tapered stepped hole
Hole intersecting with bore features
TOP
Hole intersecting with outer diameter groove
TOP
FRONT
FRONT
Case 8: 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.
Case 9: Pocket corner radius, width, and depth
- meviy may display the above error message.
- One of the reasons is shown here.
