Library › Hardware › Framing ·

Inside corner gussets for 20, 30, 40 and 10-series extrusion

What size gusset for a 2020 extrusion inside corner? · Hardware · basis: Inside corner gusset: legs the profile size × 0.8 profile tall, triangular web, one ISO 273 clearance hole per leg

Long Earth Society build part. Brackets and feet on the LES 2020 test stands; motor and bearing mounts hang off these. The engines

Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features

sizes
4 in table

Notes

  • Each gusset has two legs as long as the profile is wide and 0.8 × that tall, joined by a triangular web at mid-height.
  • Legs are 3 mm thick on 20-series and 4 mm on 30, 40 and 10-series: 20 × 16 × 3, 30 × 24 × 4, 40 × 32 × 4, 25.4 × 20.32 × 4 mm.
  • Each leg has one hole 0.6 × profile from the corner and 0.4 × profile up: Ø5.5 (M5), Ø6.6 (M6), Ø9 (M8), Ø7.14 (1/4-20).

Sizes

seriesleg_mmthickness_mmhole_mmscrew
2020 × 1635.5M5
3030 × 2446.6M6
4040 × 3249M8
10 (1 in)25.4 × 20.3247.141/4-20

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.

featureexactmates withfitfiles
bracket / gusset / plate screw holesØ5.5 / 6.6 / 9.0 / 7.14M5 / M6 / M8 / 1/4-20 clearancedesignedall

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

WikipediaT-slot nutwebCC BY-SA 4.0 (text)
OpenBuildsTee nuts and brackets for V-slotweb, STEPOpenBuilds site verify
Long Earth SocietyEngine and rig builds on extrusion framesweb, videoLES site

Free files

★ Free files 4 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

gusset-2020-series inside corner gusset, 2 × Ø5.5 (M5 clearance)STEP · STL
gusset-3030-series inside corner gusset, 2 × Ø6.6 (M6 clearance)STEP · STL
gusset-4040-series inside corner gusset, 2 × Ø9 (M8 clearance)STEP · STL
gusset-10in10in-series inside corner gusset, 2 × Ø7.14 (1/4-20 clearance)STEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=t-slot-gussets

Inside corner gussets for 20, 30, 40 and 10-series extrusion, isometric render of a generated part
Render of gusset-20 from the free STEP; not to scale.

You might also need

Questions

What screw for a 2020 gusset?

M5 through each Ø5.5 hole into a T-nut.

What is the difference between a gusset and a corner bracket?

The gusset sits in the inside corner with a triangular web; the corner bracket is an L with side gussets.