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- [FA Mechanical Parts] CNC Turning
- Design Guidelines
- Rules for Dimension Notation on 3D Viewer
Rules for Dimension Notation on 3D Viewer
The rules for displaying dimensions relating to outer diameter, inner diameter, surface roughness and holes are as follows.
Outer-Most Diameter (Non-Precision)
| Settings | Non-precision | ||||
|---|---|---|---|---|---|
| Thread Length Settings | |||||
| Specified length on left side | Specified length on right side | Specified length on both sides | Fully threaded | ||
| Image |  |  |  |  |  |
| Set Value | ø30 | ||||
| M30 thread length min.7mm｜7(M30) | | M30 thread length min.7mm｜7(M30) | |||
| M30 thread length min.7mm｜7(M30) | M30 thread length min.7mm｜7(M30) | M30 thread length min.15mm | |||
Tip
When setting the thread in meviy, fine thread is displayed for the pitch, but coarse thread is not displayed.
|
 |
Outer-Most Diameter (Precision)
| Settings | Non-precision | ||||
|---|---|---|---|---|---|
| Thread Length Settings | |||||
| Specified length on left side | Specified length on right side | Specified length on both sides | Fully threaded | ||
| Image |  |
 |
 |
 |
|
| Set Value | ø30 g6 (-0.007/-0.02) | ø30 g6 (-0.007/-0.02) | ø30 g6 (-0.007/-0.02) | ø30 g6 (-0.007/-0.02) | |
| M30 thread length min.7mm｜7(M30) | M30 thread length min.7mm｜7(M30) | M30 thread length 7mm｜7(M30) | |||
| M30 thread length 7mm｜7(M30) | |||||
Outer diameter
| Settings | Non-precision | Precision | |||
|---|---|---|---|---|---|
| Thread Length Settings | Thread Length Settings | ||||
| Specified length | Fully threaded | Specified length | |||
| Image |  |
 |
 |
 |
 |
| Set Value | ø26 | ø26 g6 (-0.007/-0.02) | ø26 g6 (-0.007/-0.02) | ||
| M27 Thread Length 7｜7(M27) | ｜M27 thread length min.15mm | M27 Thread Length 7｜7(M27) | |||
Groove outer diameter
| Settings | Non-precision | Precision |
|---|---|---|
| Image |  |
 |
| Set Value | ø26 | ø26 ±0.1 |
Inner Diameter (Through, Non-Precision)
| Settings | Non-precision | ||||
|---|---|---|---|---|---|
| Internal Thread Settings | |||||
| Specified effective depth on left side | Specified effective depth on right side | Specified effective depth on both sides | Fully threaded | ||
| Image |  |
 |
 |
 |
 |
| Set Value | ø10 | M10 | M10 | M10/M10 | M10 Thread Length 15 |
| 3(M10) | 3(M10) | 3(M10)/3(M10) | |||
Inner Diameter (Through, Precision)
| Settings | Precision | |||
|---|---|---|---|---|
| Specified effective depth on left side | Specified effective depth on right side | Specified effective depth on both sides | Full length | |
| Image |  |
 |
 |
 |
| Set Value | ø10H7(+0.015/0) | ø10H7(+0.015/0) | ø10H7(+0.015/0) | ø10H7(+0.015/0) |
| 3(ø10H7) | 3(ø10H7) | 3(ø10H7)/3(ø10H7) | ||
Inner diameter (blind)
| Settings | Non-precision | Precision | |||
|---|---|---|---|---|---|
| Internal Thread Settings | |||||
| Specified depth | Fully threaded | Specified depth | Full length | ||
| Image |  |
 |
 |
 |
 |
| Set Value | ø20 | M22x1.5 | M22 × 1.5 Thread Length 15 | ø20 H7 (+0.0021/0) | ø20 H7 (+0.0021/0) |
| 3(M22x1.5) | 9(ø20 H7) | ||||
Groove inner diameter
| Settings | Non-precision | Precision |
|---|---|---|
| Image |  |
 |
| Set Value | ø26 | ø26 ±0.1 |
Surface roughness
| Surface roughness | Ra1.6 | Ra3.2 | Ra6.3 |
|---|---|---|---|
| Image |  |
 |
 |
| Set Value | Ra1.6 | Ra3.2 | A reference surface roughness value is not displayed |
Tip
- The surface roughness value can be specified. See (1) to (6) in the figure to the right for surfaces for which values can be set.
Tip
- The display of the dimensions of holes follows the guidelines listed below.
- The display of the angular position of holes on the sides of the cylinder from the lathe machining is also added.
Straight hole
[mm]
| Blind/Through | Blind | Through | ||
|---|---|---|---|---|
| Settings | None | Torelance H7, Effective depth 13 | None | Torelance H7, Effective depth 15 |
| Image |   |   |   |   |
| 3D Viewer display | ø4 ↧15 | ø4H7(+0.012/0) ↧13/Pilot hole ↧15 | ø4 THRU | ø4H7(+0.012/0) ↧15 THRU |
Tapped hole
[mm]
| Blind/Through | Blind | Through | ||
|---|---|---|---|---|
| Settings | Coarse thread | Fine thread: Effective depth 13 | Coarse thread | Fine thread: Effective depth 10 |
| Image |   |
  |
  |
  |
| 3D Viewer display | M4 ↧15 | M4x0.5 ↧13/Pilot hole ↧15 | M4 THRU | M4x0.5 ↧10 THRU |
Insert Hole
[mm]
| Blind/Through | Blind | Through |
|---|---|---|
| Settings | Nominal length 1D | Nominal length 1D |
| Image |   |
  |
| 3D Viewer display | M4 INS-1D/Pilot hole ↧15 | M4 INS-1D THRU |
One-Step Hole
[mm]
| Blind/Through | Blind | Through |
|---|---|---|
| Settings | None | None |
| Image |   |   |
| 3D Viewer display | 凵 ø8 ↧3 | 凵 ø8 ↧3 |
| ø4 ↧15 | ø4 THRU |
*If the upper and lower rows are precision holes or tapped holes, the value at the end indicates the effective depth.
Two-Step Hole
[mm]
| Blind/Through | Through |
|---|---|
| Settings | None |
| Image |   |
| 3D Viewer display | 凵ø8↧5 |
| ø4 THRU | |
| (Opposite side)凵ø8↧5 |
Countersunk hole
[mm]
| Blind/Through | Through |
|---|---|
| Settings | None |
| Image |   |
| 3D Viewer display | V ø8 |
| ø4 |
Notes
- A hole located on the central axis is recognised as a “hole” supported for automatic quotation
- Please check here for details on recognition conditions. → [FA Mechanical Parts] Turning Parts＞Turning Parts Recognition Conditions
