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Engage Your Brain (Page 4)

A blog by Pololu president Jan Malášek. For more information, please read the first post.

Free shipping, phase two: lots more free shipping

Posted by Jan on 31 October 2017

We are now offering free US shipping for $60 or more of Pololu-branded products with active statuses.

Since my post on Thursday afternoon, we have brought free shipping to dozens of products and free add-on shipping to hundreds more. Unfortunately, that still does not get you really free shipping for most of our thousands of products because many of them are individually too low-cost to make part-by-part free shipping feasible. We just do not have a way to ship you a $6 regulator or an $8 pair of wheels for free without having to inflate the price of the products. But today, we released phase two of our free shipping initiative, which allows us to offer free shipping in the US on orders of $60 or more of Pololu-branded products that have an active status. This should bring free shipping to most of our typical orders, which might include that set of wheels, a few motors, a motor driver, and maybe the $6 regulator.

You might be wondering what I meant by that somewhat awkward phrase, “Pololu-branded products that have an active status”. That’s actually related to yet another exciting new set of features we are bringing to the Pololu site. We are proud that we design and manufacture most of our products, and we want to make it easy to tell which items are made by us. For products from other brands, especially where we are authorized distributors or otherwise working with those brands, we want to make it clear that you are getting the product from that brand, and not some counterfeit or knock off. And sometimes we all just want something generic, like the ubiquitous 0.1" headers, where the manufacturer or brand does not really matter. In some of those cases, we might not want to reveal our suppliers, or we might want to have the flexibility to change suppliers without updating product specifications; explicitly calling out a product as generic should help make it clear what kind of a product you are getting.

Because many of our customers build their own products using our products as components, or design curricula around our products, I also want to better communicate the life cycle status of our products. We therefore added a “product status” field to our product listings so that you can quickly tell if a product is one that we expect to keep making for a long time or if we expect to be discontinuing it soon. I will go over the various product status designations in a separate blog post, but for the purposes of this free shipping announcement, the point is that the products we make and which are in our good graces will be considered toward the $60 free shipping minimum.

We will be updating the product brand and status fields for our products in the coming weeks; please let us know if a product you are interested in is not updated yet.

Rolling out free shipping at Pololu

Posted by Jan on 26 October 2017

Everyone wants free shipping, right? Well, today I am happy to announce an important step in bringing free shipping to Pololu, at least for our US customers. We are beginning to offer free shipping in these two senses:

Free shipping within the United States

Some items are eligible for free shipping within the United States. If your shopping cart consists only of items eligible for free shipping, you will be presented with a “Free Shipping” shipping option during checkout. Free shipping will be shipped by a carrier and service we select, which will typically be the lowest-cost, slowest service. Currently, that would likely be First-Class Mail through the US Post Office or a ground service by FedEx, depending on the contents of the order.

Free add-on shipping within the United States

Some items are eligible for free add-on shipping for orders within the United States. These are typically very light items that should not significantly impact our shipping cost, and we pass on those savings to you. No additional shipping will be charged for these items, independent of your shipping method. Orders that consist only of free add-on shipping items will cost the minimum shipping cost for each service as the item sizes and weights will not be added to the shipping cost calculation. Orders with at least one free shipping item and the rest free add-on shipping items will have a free shipping option.

Because items with free add-on shipping will not be considered in the calculation, it is possible for the shipping method you select to be invalid because the package exceeds the limit for that method. In such cases, we will substitute a similar shipping method. For example, if you pay for First-Class Mail as your shipping method but your order actually ends up weighing more than the limit for First Class Mail, we would ship by Priority Mail.

By controlling these two aspects of free shipping on an individual product level, we can really offer free shipping, without raising prices. We are rolling this feature out with a few items we would like to promote:

Products initially eligible for free shipping and free add-on shipping:

Pololu Dual VNH5019 Motor Driver Shield for Arduino

Tic T825 USB Multi-Interface Stepper Motor Controller (Connectors Soldered)

Tic T825 USB Multi-Interface Stepper Motor Controller

Products initially eligible for free shipping only:

Zumo 32U4 Robot (Assembled with 50:1 HP Motors)

Zumo 32U4 Robot (Assembled with 75:1 HP Motors)

Zumo 32U4 Robot (Assembled with 100:1 HP Motors)

Products initially eligible for free add-on shipping only:

A-Star 32U4 Micro

A-Star 32U4 Mini ULV

A-Star 32U4 Mini LV

A-Star 32U4 Mini 2V

VL53L0X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 200cm Max

VL6180X Time-of-Flight Distance Sensor Carrier with Voltage Regulator, 60cm Max

As we work on our system and monitor the results with these initial products, my goal is to make free shipping, or at least incrementally free shipping, available for more and more of our products. We still do not have a solution for those of you who write us angry emails about the ridiculousness of our charging $3.95 to ship a $2 part (and yes, I am aware of 39-cent listings with free shipping on AliExpress; for now, we cannot compete with them on price alone). But rest assured that since shipping is one of our biggest expenses, we will continue to work hard on keeping that cost as low as we can.

If you see a product that you feel should qualify for free shipping or free add-on shipping but does not, please contact us, and we can evaluate the product’s eligibility. I would also like to hear what you think of this approach and whether you expect it will be helpful to you.

Update (31 October 2017): We are now offering lots more free shipping.

Rainbow baby Eve

Posted by Jan on 14 March 2017
Rainbow baby Eve

It’s been more than two years since my last post. I thought I would post an update a year ago, when Eve was born, but that didn’t go very well, and the uncertainty about how things would turn out with her made it difficult to rally around her birth as some celebratory point from which to start moving on. I feel at once as if I have lost two years of my life, making no progress, and yet that my life has completely transformed in that time. But I know things have gotten better because I am usually free of the sadness and fear that still filled me a year ago, around Dez’s first birthday. Continued…

On losing my baby

Posted by Jan on 5 February 2015
On losing my baby

This blog post is about some personal difficulty I’m going through: last month, my baby died unexpectedly a day or two before he was born. I could just collect my thoughts in my private journal, but I am sharing my experience here on the Pololu blog because most of the people I interact with and care about are related to Pololu, be they friends, employees, vendors, or customers. Just about everyone at Pololu knew of my eager anticipation of this new baby, and any visitors were aware that I might miss our meetings with short notice depending on when the baby arrived. Continued…

New products: Magnetic quadrature encoders for micro metal gearmotors

Posted by Jan on 2 October 2014
New products: Magnetic quadrature encoders for micro metal gearmotors

Everyone wants encoders on their motors. If you think you don’t, you just don’t know it yet. I think the main reason is that we really just want motors to do what we tell them to do, but they don’t. One of the most common beginner questions we get is some variation of, “why doesn’t my robot go straight?” or “I got two of the same motor but they do not go the same speed; is something wrong with one of them?” More seasoned robot builders know that since there will always be variations in everything that contributes to a motor’s performance, our best hope is to put a sensor on the motor to monitor what is actually happening and then adjust the motor control to make reality better match our desires. Continued…

Big price reductions and new options for our popular stepper motor drivers

Posted by Jan on 26 September 2014
Big price reductions and new options for our popular stepper motor drivers

We recently substantially reduced prices on our stepper motor driver carriers, and I figured this announcement was a good time to give you an update on our perspective and capabilities.

It has been over five years since I designed our original stepper motor driver carrier, which was for the A4983 from Allegro. While fairly straightforward, the implementation reflected several design philosophies that go into Pololu products, such as making the boards as small as practical and including the right extra components to make the main chip easily usable without unnecessarily limiting its features. Continued…

Thoughts on journalists checking drafts with sources

Posted by Jan on 5 September 2014

I received a phone call yesterday from a writer for a local community-oriented, general-interest publication. Pololu is one of a dozen or so companies she was covering in an article about technology-related companies in southern Nevada, and she asked some basic questions about Pololu and how we might be relevant to Las Vegas-area locals. She then asked if there was anything else I would like to add or have mentioned about us. I answered that since I wasn’t really clear on what this article was going to be or what the intended audience was, I did not know what would be appropriate or interesting. I suggested that she could send me a draft of her article so that I might have a better context for giving her additional info. Continued…

LPS331AP pressure sensor test flight

Posted by Jan on 20 March 2013
LPS331AP pressure sensor test flight

We expect to release a simple carrier for ST’s new LPS331AP pressure sensor this week. While testing and writing example programs for the sensor, one of our engineers, Kevin, came up with a nice demonstration that calculates and displays the altitude on our Orangutan SVP robot controller. It was a beautiful spring day with great flying weather, so Paul and I took Kevin’s digital altimeter on a flight to Lake Havasu City, Arizona, to see how it compared to the altimeter in a plane. Continued…

More fun machines, part 2

Posted by Jan on 18 March 2013
More fun machines, part 2

I posted toward the end of last year about some new equipment we were adding to our manufacturing operations and said the best stuff was still coming. I and several others at Pololu have since had some more personal deliveries of the crying-all-night sort, which delayed my promised update. I still do not have the performance information I had hoped to have by now, but let’s at least look at what we got: Continued…

Meeting with Governor's Office of Economic Development

Posted by Jan on 14 December 2012
Meeting with Governor's Office of Economic Development

I sort of had a meeting with the governor of Nevada this morning. I’m posting some notes about it mostly for others at Pololu, but maybe it will be interesting to other small businesses in Las Vegas. I probably should have been more prepared for the meeting; I still don’t know much about who was there or what exactly happened or what the stakes were, so a lot of my descriptions are kind of vague. Continued…

New Products

Free Circuit Cellar magazine May 2020
RoboClaw 2x60AHV, 60VDC Motor Controller (V7B)
9V, 5A Step-Down Voltage Regulator D36V50F9
ACHS-7125 Current Sensor Carrier -50A to +50A
Pololu Wheel for Standard Servo Splines (25T, 5.8mm) - 70×8mm, White, 2-Pack
15:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft
19:1 Metal Gearmotor 37Dx68L mm 12V with 64 CPR Encoder (Helical Pinion)
6V, 5.5A Step-Down Voltage Regulator D36V50F6
Magnetic Encoder Pair Kit with Side-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V
30:1 Metal Gearmotor 37Dx68L mm 12V with 64 CPR Encoder (Helical Pinion)
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