Formada3D SG90-size micro servo bracket for 2020 extrusion, PETG (fits Tower Pro SG90 and same-size 9 g servos)
A bracket that stands a 9 g micro servo upright on 2020 aluminium extrusion, for pan-tilts, small grippers and classroom robots. The servo drops in from the top through a 23.2 x 12.8 mm window, its ears sit on a 3 mm plate, and two M2 screws go through slotted holes that cover ear-hole pitches from 26.5 to 28.5 mm. The body hangs in a cavity with room for the nuts and 4 mm of clearance above the rail, and two feet with M5 slots fix it to the extrusion with T-nuts. Sized from Tower Pro's published SG90 dimensions. Printed to order in our Melbourne workshop; a free fit coupon comes first.
From A$8 for the one bracket (order minimum). Printed to order in Melbourne and shipped Australia-wide; we confirm the final price and lead time before anything is printed.
On the quote page choose Request a quote (no file needed) and name this part and the option you want.
Order status. Body and ear sizes come from Tower Pro's published table. The ear-hole pitch is not published, so the ear holes are slotted and a free coupon with pitch marks comes first; we adjust the holes to your servo if needed.
What does it look like in use?
Renders are computer images of our own design, made from the same model we print. This family is made to order: real photos of our first prints are coming.
Specifications: material, size and what it fits
| Spec | Detail |
|---|---|
| Material | PETG, 4 walls, 25 % infill (load-bearing: it carries servo torque), 0.20-0.24 mm layers, no supports. Printed plate-down with the feet on 45 degree gussets |
| Size | 66 x 19 x 21 mm, about 11 g. Window 23.2 x 12.8 mm (0.25 mm per side on the length, 0.3 on the width); 3 mm plate; cavity 35 x 14 mm |
| Fixing | Two 2.4 mm ear slots (M2) covering 26.5-28.5 mm pitch; two M5 slots 50 mm apart in the feet; cable slots near each end of both long walls |
| Fits | Tower Pro SG90 and same-size 9 g micro servos: body 22.7 x 12.2 mm, ear span 32.3 mm, ears 17 mm above the case bottom (Tower Pro product page). The ear-hole pitch is not published, so the holes are slotted |
| Hardware | Not included: 2 x M2 x 10 screws + nuts for the ears, 2 x M5 x 10 screws + 2020 T-nuts |
| Fit coupon | Free with an order: a 2.4 mm plate with the same window and slotted holes and pitch marks at 26.5 / 27.5 / 28.5 mm |
Tower Pro and SG90 are trademarks of their owners, named only to describe fit. This bracket is our own design and is not affiliated with or endorsed by them.
How much does it cost?
Guide prices for printed parts, in Australian dollars. Shipping is extra; we confirm the final price, including any business minimum, before printing. Bulk and custom sizes are quoted per job.
| Option | From |
|---|---|
| One bracket, PETG (4 walls / 25 %) | A$8 |
| 4 brackets | A$9.95 |
| Class pack of 10 | A$24.95 |
| Fit coupon | Free with an order |
Who it's for
School and university robotics classes, makers building pan-tilts and small grippers, and anyone mounting SG90-size servos on 2020 extrusion.
Safety & use
Installation & use. Designed for the uses described on this page only. Fixings are not included: use the sizes listed, check they are tight before use, and check the parts regularly for wear or damage. Not for safety-critical or overhead load-bearing use. Damage caused by misuse, modification or overloading isn't a fault in the product.
Robots. Powered joints can pinch and move unexpectedly. Keep fingers, hair and cables clear while powered, check the full range of motion by hand after fitting, and use the screw lengths listed on this page. PETG softens near 70 degrees C. A printed bracket is for hobby, education, research and prototype loads.
Load. This part carries servo torque. Use the servo's torque limit and the stated screw lengths, and use metal brackets for production machines.
This doesn't affect your rights under the Australian Consumer Law.
Common questions
Which servos does it fit?
Tower Pro SG90 and other 9 g micro servos with the same 22.7 x 12.2 mm body and 32.3 mm ear span. The slotted ear holes take ear-hole pitches from 26.5 to 28.5 mm.
How does it mount on 2020 extrusion?
Two feet with M5 slots 50 mm apart take M5 x 10 screws into 2020 T-nuts. The slots let you slide the bracket along the rail before tightening.
Does it come with screws?
No. You need 2 x M2 x 10 screws with nuts for the servo ears and 2 x M5 x 10 screws with T-nuts for the rail.
Can I order a class set?
Yes. 10 brackets are A$24.95 and 4 are A$9.95, printed in PETG with 4 walls and 25 % infill. For other quantities send an enquiry.
How do I order?
Use Get a quote and choose Request a quote, naming the quantity. We confirm the price and lead time before anything is printed.
More from the parts catalogue
Adaptive soft gripper finger kit (fin-ray style, TPU)
Soft TPU fingers that wrap around eggs, fruit and bottles. Three sizes, one M3 mount.
Servo bracket and camera mount kit for 2020 extrusion
Standard-servo bracket and a camera mount for 2020 aluminium extrusion, in PETG.
X-series-size smart servo base for 2020 extrusion, PETG (fits ROBOTIS XL430-W250)
Dynamixel-style base plate with side cheeks for 28.5 x 46.5 x 34 mm smart servos, on 2020 extrusion or a 20 mm grid.
Last updated 15 October 2026.