- 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, 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 | By modifying the thickness of the model, automatic estimation is possible. |
Click here for more information about the logic that determines the conditions for thin walls.
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, an automatic offer 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: Flange Thickness
Flange Thickness
| Cause | The reason is that the thickness of the arrowed portion above is less than 1 mm. |
| Solution | The thickness of the arrow above should be 1 mm or more for automatic estimation. |
Case 6: Unrecognizable or Unavailable Shapes
The following error messages are displayed when there is a “target outline” when recognized by meviy.
*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
| Solution | Remove the thread and upload it 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 hole①
R – Radius
Tapered hole②
Two stepped tapered hole
Hole intersecting with hole 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 mevyi is loaded.
- If the shape is deformed, please try the following steps to see if you can get a quote.
State of original data
State after meviy is loaded
Tip
- If the following message is displayed in the 3D viewer, it corresponds to this error.
- – “An error shape exists in the model.”
- – “Failed to load file.”
1. Shape check of 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?
- Confirmation of 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.
- Confirmation using checking tools
- – Check for inconsistent shapes
If there is no problem with the shape, or if the loading situation does not improve after re-uploading the corrected file, please try the next step “2.
２．Changing the file format
Upload the file again in a different 3D CAD file format from the one you uploaded.
Notes
- – If meviy supports the native format of the 3D CAD file you are using, please try quoting in the native format.
- – If you are using an intermediate format, please try quoting in STEP or Parasolid format.
If modifying the geometry and changing the file format does not improve the situation, please contact our support.
Case 9: Pocket corner radius, width, and depth
- meviy may display the above error message.
- One of the reasons is shown here.
