Dimensional tolerances that can be specified

When the 3D CAD data is uploaded, You can specify dimensional tolerances for areas where dimensions and tolerances are not displayed
The minimum tolerance (range) that can be specified varies for each combination of geometry elements.

Fit Tolerance

The fit tolerances that can be set for lathe machining and secondary machining are as follows.

Type of Machining	Fit Tolerance
Lathe	Metal: Grade IT6 or above
MC (Secondary Machining)	Metal：Grade IT7 or above

The tolerances that can be set for the full length and the length of each element (part) are as follows.

[mm]

Metal	Full Length (L) and Length (ℓ)
Metal	Example of Minimum Tolerance	Range
L,ℓ ≦ 200 *	±0.02	0.04
200 < L, ℓ ≦ 500	±0.05	0.1
500 < L, ℓ	±0.2	0.4

*The range that can be set will change for the following thin plates.

Metal		Full Length (L) and Length (ℓ)
Metal		Example of Minimum Tolerance	Range
L ≦ 5	150＜D	±0.1	0.2
L＜10	50 ≦ D	±0.1	0.2

Resin	Full Length (L) and Length (ℓ)
Resin	Example of Minimum Tolerance	Range
L,ℓ ≦ 100	±0.05	0.1
100＜ L,ℓ ≦ 200	±0.1	0.2
200＜ L,ℓ ≦ 300	±0.2	0.4

The tolerances that can be set for the outer diameter are as follows.

[mm]

Tolerances for Groove Inner Diameter (d)	Minimum Tolerance	Range
Tolerances for Groove Inner Diameter (d)	±0.05	0.1

Groove Width(w)	Minimum Tolerance	Range
Groove Width(w)	±0.07	0.14

Location Dimensions(ℓ)	Minimum Tolerance	Range
Location Dimensions(ℓ)	±0.1	0.2

*Tolerance between inner and outer diameter surfaces cannot be added.

The tolerances that can be set for the inner diameter are as follows.

[mm]

Tolerances for Groove Inner Diameter (d)	Minimum Tolerance	Range
Tolerances for Groove Inner Diameter (d)	±0.05	0.1

Groove Width(w)	Minimum Tolerance	Range
Groove Width(w)	±0.07	0.14

Location Dimensions(ℓ)	Minimum Tolerance	Range
Location Dimensions(ℓ)	±0.1	0.2

*Tolerances cannot be added to the inner diameter groove and other elements.
However, the positional dimension from the end face of the ℓ section is excluded.

The tolerances that can be set between each shape element are as follows.

[mm]

No	Shape Element	(2) Outer Diameter Side	(3) External Groove Side	(4) Pocket Surface	(5) Inner Diameter Bottom	(6) Internal Groove Side
(1)	Both End Faces	0.04～	0.1～	0.1～	0.04～	0.2～
(2)	Outer Diameter Side	0.04～		0.1～	–	–
(3)	External Groove Side	–		0.2～	–	–
(4)	Pocket Surface	–	–	0.1～	–	–
(5)	Inner Diameter Bottom	–	–	–	0.04～	–
(6)	Internal Groove Side	–	–	–	–	0.2～

[mm]

No	Shape Element	(5) Precision Hole Center	(6) Straight Hole Center	(7) Tapped Hole Center	(8) Insert hole center	(9) Countersink center	(10) Slotted Hole/Keyway
(1)	Both End Faces/Central Axis	0.1～	0.2～	0.2～	0.2～	0.2～	0.2～
(2)	Outer Diameter Side	0.1～
(3)	External Groove Side	0.2～
(4)	Pocket Surface	0.1～
(5)	Precision Hole Center	0.1～
(6)	Straight Hole Center	–
(7)	Tapped Hole Center	–	–
(8)	Insert hole center	–	–
(9)	Countersink center	–	–	–	–
(10)	Slotted Hole/Keyway	–	–	–	–	–

Tip

(1) Holes on the same circumference are called P.C.D. (Pitch Circle Diameter). Cross bores are not supported.
(2) P.C.D is recognized even with different hole types.
(3) P.C.D. is recognised regardless of whether the positions of the holes are equally or unequally divided.
(4) It is possible to add diagonal dimensions that specify the distance between P.C.D. holes.
How to use > Adding/Deleting Dimensions and Dimensional Tolerances

P.C.D. Equally divided	P.C.D. Unequally divided	The distance between P.C.D. holes.

Caution

P.C.D. recognition is supplementary and reference information in meviy for Turning Parts.
If you need to specify the tolerance between holes, please select the “Add tolerance” icon and specify the tolerance for the target position.

Tip

The positional relationship of holes on both end faces of the reference model in the figure below is a general tolerance. Positional tolerances cannot be specified for topologically related shapes..

Notes

3D Model Colour Schemes
If a colour scheme for an unsupported shape is displayed, automatic quotation is not available.