Why set the rim at 13 mm instead of widening it all round?

Answer: The 3D scanner portable shockproof hard safety case weighs 4.7 kg empty, and widening the whole ring adds mass while stiffening only the mouth.

What happens if the 16 mm posts are made shorter?

Answer: Shorter posts no longer reach the inner press frame, so the 30 g / 11 ms energy loads the rim alone and long-side squareness crosses 0.3 mm early.

How many shock directions are run?

Answer: The 3D scanner portable shockproof hard safety case runs 30 g / 11 ms along the long side, the short side and the vertical axis, taking the largest squareness as the record.

Can the 1.2 m drop replace the 30 g / 11 ms shock?

Answer: No, the drop probes joint loosening while the shock probes post bending, and the 3D scanner portable shockproof hard safety case clears only when both pass.

Does the IP65 retest relate to post squareness?

Answer: The spray retest follows the drop, and if the single gasket at 22 percent compression can no longer seal because the rim moved, mouth warp shows up there first and is then checked against the squareness data; the two records are judged apart.

3D scanner portable shockproof hard safety case

Quick answer: A 3D scanner portable shockproof hard safety case with a 13 mm rim and four 16 mm posts holds squareness at 0.3 mm after a 30 g / 11 ms shock.

Sealing rim width of the 3D scanner portable shockproof hard safety case
Height allocation of the inner locating posts
Perpendicularity readings by shock direction
Post position retention after the drop retest
Rim width rejection line for hard-shell batches
FAQ

1. Sealing rim width of the 3D scanner portable shockproof hard safety case

The 3D scanner portable shockproof hard safety case keeps a 13 mm sealing rim around the mouth, a ledge that seats the gasket and resists sideways lid shift. The 4.1 mm shell wall flares into a platform anchoring the 8 mm post roots. Between a 520 x 380 x 205 mm envelope and a 455 x 320 x 150 mm cavity, the remaining wall is shared between the flange and the post seats; a rim cut too narrow lets the lid slide under shock.

Rim width of the 3D scanner portable shockproof hard safety case is sampled at six points around the perimeter, each held within 0.2 mm of the 13 mm nominal. JUNZHIJIA checks rim width together with post height as one pair, since the rim governs sideways restraint and the posts govern vertical support, and both take the 30 g / 11 ms half-sine shock. Neither figure alone predicts post perpendicularity afterwards.

Rim tier	Measured rim	Post squareness after 30 g / 11 ms
Narrow	11 mm	0.38 mm, reject
Nominal	13 mm	0.24 mm
Wide	15 mm	0.19 mm

2. Height allocation of the inner locating posts

Four locating posts, each 16 mm high and 8 mm across, sit at the corners of the 455 x 320 x 150 mm cavity of the 3D scanner portable shockproof hard safety case. Taller posts act as cantilevers under shock; shorter ones leave a gap at the lid frame. At 9.5 kg loaded, 16 mm lets each post top meet the inner frame, so shock runs down the post into the base rather than loading the rim alone.

3D scanner portable shockproof hard safety case stack of red and black closed shells on a pallet, blue tote and worker behind, yellow floor lines

Post-to-seat interference of the 3D scanner portable shockproof hard safety case is held near 0.1 mm, since a loose root turns on the shock rig and the perpendicularity reading includes assembly play. The shell runs 4700 empty open-close cycles first, then goes onto the 30 g / 11 ms half-sine table. Two latches at 355 N each are checked here; any run with the lid not fully pressed is excluded.

3. Perpendicularity readings by shock direction

The half-sine shock of the 3D scanner portable shockproof hard safety case is set at 30 g / 11 ms along the long side, the short side and the vertical axis, with post perpendicularity measured against the base datum after each run. The ceiling is 0.3 mm, and the long side works hardest because inertia pushes all four posts toward one flank. Both 4.7 kg empty and 9.5 kg loaded states are run, and the larger squareness value is recorded.

Shock direction	Squareness at 30 g / 11 ms	Reading
Long side	0.26 mm	governing direction
Short side	0.18 mm	secondary direction
Vertical	0.21 mm	check direction

The clamp itself drifts about 0.02 mm at zero after repeated shocks, so a separate card column removes that play. Three corrected curves placed together show which run truly bent a post and which only loosened the tooling; a sound batch is not rejected on the fixture's account.

4. Post position retention after the drop retest

After the shock programme the 3D scanner portable shockproof hard safety case goes through a 1.2 m six-face drop, landing on the diagonal opposite the posts. The post roots are checked by eye for blushing, then squareness is remeasured; the gap from the shock terminal value must stay within 0.06 mm. A 1.2 m drop and a 30 g / 11 ms half-sine shock are two loads, one probing joint loosening and the other post bending.

3D scanner portable shockproof hard safety case injection hall with blue columns and rows of moulding machines, red overhead crane beam, green epoxy floor

The drop retest of the 3D scanner portable shockproof hard safety case also checks whether the 13 mm rim has been crushed, since a dented platform weakens sideways restraint. An IP65 spray retest follows, where the single gasket at 22 percent compression still has to seal and the mouth must not warp from rim deformation.

5. Rim width rejection line for hard-shell batches

For the 3D scanner portable shockproof hard safety case, eight shells per batch are measured at the rim, and a reading 1.5 mm under the 13 mm nominal is a reject; two such shells send the whole batch back. The line matches the narrowest rim that still holds squareness within 0.3 mm after a 30 g / 11 ms shock. JUNZHIJIA writes it into the process card and reruns one full 30 g / 11 ms check after any tool or material change.

Rejection records for the 3D scanner portable shockproof hard safety case map one to one onto squareness values and are filed by shell number.

Squareness value	Matching rim tier	Disposition
no more than 0.3 mm	nominal 13 mm	release
0.3 to 0.4 mm	narrow 11 mm	remeasure posts
above 0.4 mm	reject band	whole batch rework

Conclusion

The 3D scanner portable shockproof hard safety case pairs a 13 mm sealing rim with four 16 mm posts to hold post squareness within 0.3 mm after a 30 g / 11 ms half-sine shock, with the 1.2 m drop retest covering joint loosening. JUNZHIJIA files the measured rim, the direction curves and the rejection line, and reruns them after any tool change. When specifying a hard-shell case of this kind, ask first whether rim width and post height come with measured figures.