Posts by Emily (Page 2)

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New product: Surplus SpringRC SM-S4303R Continuous Rotation Servo Pair (Two Servos)

Posted by Emily on 28 September 2021


SpringRC SM-S4303R Continuous Rotation Servo Pair.

We are now offering a two-pack of Surplus SpringRC SM-S4303R Continuous Rotation Servos. These servos are functionally identical to our stock SM-S4303R servos except for the direction of rotation, which is reversed. We are selling them in pairs to help differentiate them. See the product page for more details and specs.

Video: How to Assemble the 3pi+ 32U4 OLED Robot

Posted by Emily on 20 September 2021



In case you missed it, the 3pi+ now comes with a graphical OLED display! Accordingly, we have released an updated version of the 3pi+ assembly video. This video walks you through the steps found in the assembly section of the 3pi+ 32U4 User’s Guide. While our user’s guides aim to be as thorough as possible, some things are a lot easier to understand when you actually see someone doing it (like soldering the leads to the motor tabs!), so we hope you find this video a useful addition to our 3pi+ documentation.

Is there something you would like to see in a future 3pi+ video? Let us know in the comments below!

Labor Day Sale going on now!

Posted by Emily on 2 September 2021


We are having a Labor Day sale starting now through Tuesday, September 7! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, September 3 will be shipped on Tuesday, September 7.

Independence Day Sale going on now!

Posted by Emily on 1 July 2021


We are having an Independence Day sale starting now through Monday, July 5! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, July 2 will be shipped on Tuesday, July 6.

New high-speed linear actuators

Posted by Emily on 8 June 2021
Tags: new products

We are excited to announce the addition of new GF23-series high-speed linear actuators to our already extensive linear actuator selection. This brand new Glideforce series from Concentric International is specifically designed for high-speed, light-duty applications, offering almost twice the speed of our previously fastest options while still supporting almost the same dynamic loads. This video demonstrates the speeds of the four types of light-duty actuators we carry:


They are available in 2″, 4″, 6″, 8″, 10″, and 12″ lengths with or without a feedback potentiometer. The table below shows how these new units compare to our other light-duty options, which are slower but stronger:

Actuator
Type
Max
Dynamic
Load
No-Load
Speed
@ 12 V
Max-Load
Speed
@ 12 V
Current
Draw
@ 12 V
Nominal
Stroke
Length
With
Feedback
Without
Feedback
High-Speed
Light-Duty
(LD) 5:1
12 kgf
[27 lbs]
8.4 cm/s
[3.3″/s]
7.5 cm/s
[2.9″/s]
1.1 A –
3.4 A
2″ GF23-120502-3-65 GF23-120502-1-65
4″ GF23-120504-3-65 GF23-120504-1-65
6″ GF23-120506-3-65 GF23-120506-1-65
8″ GF23-120508-3-65 GF23-120508-1-65
10″ GF23-120510-3-65 GF23-120510-1-65
12″ GF23-120512-3-65 GF23-120512-1-65
Light-Duty
(LD) 5:1
15 kgf
[34 lbs]
4.4 cm/s
[1.7″/s]
3.6 cm/s
[1.4″/s]
1.2 A –
3.2 A
2″ LACT2P-12V-05 LACT2-12V-05
4″ LACT4P-12V-05 LACT4-12V-05
6″ LACT6P-12V-05 LACT6-12V-05
8″ LACT8P-12V-05 LACT8-12V-05
10″ LACT10P-12V-05 LACT10-12V-05
12″ LACT12P-12V-05 LACT12-12V-05
Light-Duty
(LD) 10:1
25 kgf
[55 lbs]
2.8 cm/s
[1.1″/s]
2.3 cm/s
[0.9″/s]
1.2 A –
3.2 A
2″ LACT2P-12V-10 LACT2-12V-10
4″ LACT4P-12V-10 LACT4-12V-10
6″ LACT6P-12V-10 LACT6-12V-10
8″ LACT8P-12V-10 LACT8-12V-10
10″ LACT10P-12V-10 LACT10-12V-10
12″ LACT12P-12V-10 LACT12-12V-10
Light-Duty
(LD) 20:1
50 kgf
[110 lbs]
1.5 cm/s
[0.57″/s]
1.2 cm/s
[0.48″/s]
1.2 A –
3.2 A
2″ LACT2P-12V-20 LACT2-12V-20
4″ LACT4P-12V-20 LACT4-12V-20
6″ LACT6P-12V-20 LACT6-12V-20
8″ LACT8P-12V-20 LACT8-12V-20
10″ LACT10P-12V-20 LACT10-12V-20
12″ LACT12P-12V-20 LACT12-12V-20

This brings our total selection of light-duty actuators to 48 options, and our total overall selection of linear actuators to 82 options, all stocked and available to ship the day you order.

Memorial Day Sale going on now!

Posted by Emily on 27 May 2021


We are having a Memorial Day sale all weekend long with site-wide discounts of up to 25%! Check out the sale page for more information. Please note that we will be closed Monday, so orders placed after 2 PM Pacific Time Friday, May 28 will be shipped on Tuesday, June 1.

Video from content creator Curio Res: How to control a DC motor with encoder

Posted by Emily on 30 April 2021


Content creator Curio Res recently released a tutorial and accompanying video explaining how to control a DC motor with an encoder. The video and post cover how to set up a motor with encoder, a controller, and a motor driver and how to read encoder signals. They also address common questions we get from customers who want to add closed-loop feedback to their projects such as how to implement a PID algorithm to control the position of the motor shaft based on the encoder readings. The content is well explained, and the diagrams and motion graphics make everything easy to follow and understand.

The tutorial uses one of our 37D Metal Gearmotors and our TB67H420FTG Motor Driver Carrier. The tutorial also uses an Arduino Uno, but one of our A-Star 32U4 Primes could be used instead.

If you like Curio Res’s content, be sure to subscribe to their YouTube channel so you don’t miss their latest videos. We look forward to seeing more great tutorials from Curio Res!

20th Anniversay Sale

Posted by Emily on 12 April 2021


We are having a sale to celebrate our 20th anniversary! Get 20% off 20 big categories of products! The sale runs until the end of April. Visit the sale page for details!

Video: How to Assemble the 3pi+

Posted by Emily on 4 February 2021
Tags: pololu videos


We are excited to release our first video related to our new 3pi+ robot! This assembly video walks you through the steps found in the assembly section of the 3pi+ 32U4 User’s Guide. While our user’s guides aim to be as thorough as possible, some things are a lot easier to understand when you actually see someone doing it (like soldering the leads to the motor tabs!), so we hope you find this video a useful addition to our 3pi+ documentation.

Is there something you would like to see in a future 3pi+ video? Let us know in the comments below!

3pi+ featured in community member's intro to robotics video series

Posted by Emily on 27 January 2021

Customer and forum user Brian Gormanly (known as bg305 on our forum) just released the first video in his new Arduino Lab Series: Introduction to Robotics: Building an Autonomous Mobile Robot. Brian writes, “Throughout this series we will be introducing topics on building and programming an autonomous mobile robot! You can follow along with each lab adding amazing new behaviors to your robot projects and learning the algorithms and tuning techniques that produce incredible robots!”

Brian is using our new 3pi+ 32U4 Robot in his videos and from the first video, it looks like the series will be a great introduction to robotics and the 3pi+! Subscribe to Brian’s channel Coding Coach so you can make sure to catch each video as it is released.

New Products

298:1 Micro Metal Gearmotor LP 6V with 12 CPR Encoder, Side Connector
ACS724 Current Sensor Carrier -30A to +30A
4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator w/ Adjustable Low-Voltage Cutoff D30V33MASCMA
6V Step-Up/Step-Down Voltage Regulator S8V9F6
Motoron M1T550 Single I²C Motor Controller (Header Pins Soldered)
ACS724 Current Sensor Carrier -10A to +10A
LPS22DF Pressure/Altitude Sensor Carrier with Voltage Regulator
Graphical OLED Display: 128x64, 1.3", White Pixels, SPI, Black PCB
9V, 2.9A Step-Down Voltage Regulator D30V30F9
5V, 3.4A Step-Down Voltage Regulator D30V30F5
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