当您将零件上传到虚构平台时，您将获得即时设计（DFM）反馈。这里有一些解释，说明了为什么您会收到该反馈以及可以做些什么才能使您的零件准备好！

Fillets to be added

图形显示一个正在添加到零件的圆角

Explanation

圆角将被添加到尖锐的内角或起草或倾斜边缘的区域。否则，这些功能是不可能的。

Action Step

If you want to specify radii on your fillets, you can add them to your design. Otherwise, the manufacturer will use their discretion to add fillets to these areas.

Fillets to be increased

一个图形显示每个旁边的2个部分，左侧的零件有一个小的半径圆角，红色带有红色X，右侧的零件带有一个带有绿色检查标记的较大的绿色阴影圆角

Explanation

设计到你的一部分的鱼片too small to be machined with the smallest end mill that would otherwise be necessary. This adds an extra tool and tool change operation to the CNC machining program, adding time to the overall project.

Action Step

No action required, unless you want to change the fillets to be a specific size. Otherwise, the machinist will increase the fillet size to avoid using an extra tool.

孔的深度（钻孔）

在左侧，一个钻孔大于12d和红色X的零件，右侧是一个小于12D的孔，绿色检查标记

Explanation

If the depth of a hole in your part is greater than 12x the nearest bit diameter, we will not be able to machine your part. Drills that are greater than 12 times the diameter of the bit are hard to source and may break during drilling. If you increase the diameter of the hole, a larger drill can be used, which would mitigate the issue.

Action Step

If the hole is a blind hole and is too deep to be drilled, you can try to decrease the depth of the hole or increase the diameter of the hole. The ratio of depth to diameter needs to be less than 12.

Depth of cut (milling)

on the left, a part with a deep pocket labeled as greater than 10D and the tool is bending. on the left a part with a pocket that is less than 10D and the tool is straight

Explanation

If the depth of a feature in your part is greater than 10x the diameter of the end mill used, we will not be able to machine your part. End mills that are greater than 10 times the diameter of the bit are hard to source and may break during use. This may occur if you have thin but deep features such as slots or grooves.

Action Step

If you can, decrease the depth of the feature. Otherwise, increase the feature diameter or the corner radius (fillet), which will allow a larger diameter tool to be used. This in turn allows a longer tool.

Non-standard thread (produced at risk)

Explanation

The fit/function of this thread size cannot be guaranteed because we cannot source a proper thread checker. We can still move forward with manufacturing your part, but it will be a High Risk Product.

Action Step

In order to guarantee the fit and function of your threads, you can select a standard thread size.

Thin walls may not hold up to machining

左侧的一部分很薄，弯曲与工具接触，右侧的零件很厚，不会与该工具接触

Explanation

我们所需的最小厚度为0.25mm，塑料为0.50mm。如果墙壁比这更薄，它们将不会坚持制造过程。材料可能会扭曲，变形或完全破裂。为了进行制造业，您必须更新壁厚以高于最小值。

Action Step

The minimum required thickness is 0.25mm for metals and 0.50mm for plastics. Update your design to be above the minimum thickness of your material.

如果去除过多的材料，可能会发生翘曲

a graphic showing 2d parts, one with thin walls that is warped and the other with thick, straight walls

Explanation

Removing a large amount of material from a part puts a lot of stress on the workpiece, causing warping when the part is removed from the machine.

Action Step

Evaluate the design of your part (is it best suited to CNC machining?) and the geometry of the final part (thin walls). Add to the wall thickness or consider changing the manufacturing process.

Not optimized for CNC machining

Explanation

Your part is not optimized for CNC machining. Significant changes must be made for it to be manufactured.

Action Step

Chat with a Fictiv representative to learn more about why your part failed for CNC machining.

Part will be reworked from McMaster part number

Explanation

您的零件将由特定的McMaster零件编号制造。这可能是从McMaster购买的库存材料。

Action Step

You don’t have to do anything, unless you have issues with the part number listed. In that case, contact your Fictiv sales rep.

手动依据可能是必要的

带有内部倒角和异型工具的矩形部分

Explanation

The highlighted areas may be deburred manually due to reachability constraints or the necessary tool geometry required. Some areas may have chamfers that are not accessible with standard tooling. In this case, these areas will be deburred manually.

Action Step

If you don’t want these features to be deburred manually, you can remove the chamfers from your CAD model.

Thin stock not available for chosen material

Explanation

Due to the part thickness, this part must be made from stock thickness material. However, the thinnest material available is too thick. If we do machine with your desired thickness, the part will end up warped or out of spec.

Action Step

用替代材料重新配置您的零件（在您的DFM反馈中建议）。您也可以与虚构代表聊天以获取更多建议。您还可以将设计的厚度更改为所需材料可用的最小厚度。

Non-matching drawing and CAD model

a graphic showing two parts, one says CAD and the other says 2D with a red x

Explanation

CAD型号与您提供的2D图不匹配。

Action Step

If your CAD model is correct and you don’t need a 2D drawing, you can simply remove the 2D drawing. Otherwise, you can upload the correct CAD model that does match the 2D drawing. You can also generate a 2D drawing right on Fictiv’s platform.

Material mismatch

材料选择的窗口显示2024突出显示，而图形显示材料为7050铝，并在之间有红色x

Explanation

您的材料配置与您的2D图不匹配。我们不能用这些矛盾的信息使您的零件。

Action Step

If your drawing states the correct material, reconfigure your part with the correct material. Otherwise, annotate your drawing to cross out the material and make a note of the correct material.

Unreachable volume

图形显示带有悬垂功能的2D对象和工具旁边的红色X

Explanation

标准工具无法完全访问或可加工。它要么太深​​，角度，要么被另一个功能阻塞。

Action Step

In order to make the feature(s) machineable, please update your model so that the necessary features are reachable. Talk to your Fictiv sales rep for more details.

EDM可能会限制交货时间选项

Explanation

由于设计，此功能将通过电气加工加工，因此只能在海外生产。这可能会限制交货时间选项。

Action Step

If you require a different lead time or to manufacture domestically, please update your model so that it can be machined using standard tooling.

Gear hobbing may limit lead time options

Explanation

This feature will be machined using gear hobbing, so it can only be produced overseas. This may limit the lead time options.

Action Step

If you require a different lead time or to manufacture domestically, please update your model so that it can be machined using standard tooling.

Tight tolerance plastics

公差带有公差带和警告标志的零件时，公差小于0.10mm

Explanation

不能保证低于0.1mm的塑料的紧密公差。塑料材料在加工时会因温度变化而扭曲，因此我们不能保持低于+/- 0.05mm的公差。PEEK具有最佳的尺寸稳定性，并且温度变化，如果您的紧密公差至关重要，则可能是一个很好的选择。

Action Step

如果您什么都不做，那么零件仍然会被加工，但我们不能保证紧张的公差。如果这些公差至关重要，您可以将材料更改为窥视。

要了解有关CNC加工最佳设计的更多信息，请查看虚构的DFM大师班!