Money Pit: 3D Printing Part 3 – OctoPrint and OctoPi

This is one topic in a series of what I’m calling “money pit” projects. To be fair, it’ll be money and time pit topics, and nothing that you’d really have to get a second mortgage on your house to do… but things always get a bit out of hand.

This project is the 3D Printing project. Expect it to be an ongoing series, and I’m hoping to have some friends join the effort and offer their feedback as well. Links and prices are accurate as of November 2020, and may get updated in the future… but don’t count on it.

See the previous parts for the lead-in to this project. From here we’ll get into the enhancements and early printing.

Octopi / OctoPrint

The first day or two, I was running out to the garage to check on prints, and shuttling the included 8GB MicroSD card back and forth to load print files onto it. Since the only storage the printer has is this MicroSD card, I couldn’t add files during a print run, and it got somewhat tiring.

Enter OctoPrint and OctoPi.

OctoPrint is an open-source management program and web front-end for many/most 3D printers. It communicates with the printer over a USB cable. It can be installed on a Linux, Windows, or MacOS computer. However, you might not want to dedicate a full-sized computer to this task.

OctoPi is a Raspbian (Raspberry Pi Debian image) based distribution with Octoprint and the video streamer software included. you just need a Pi 3B or later board (and case and power supply) and an SD card with OctoPi installed. Older boards will work, but with the camera option or other intense plugins (like gcode viewers) you won’t like it according to the folks behind OctoPrint and OctoPi. Continue reading

Quick Take: Different ways of acquiring cryptocurrency

With this past month’s stock and crypto activity (various stocks heading for lunar orbit, Bitcoin breaking US$40,000, etc), a lot of people have started looking for ways to buy cryptocurrency (and stocks).

In a lot of forums, they’re being hit with misleading or outright false information. I’m here today to give you some pointers and context, and help you understand the cryptocurrency options available to you.

Send me a few thousand SHIB (well, enough for a coffee or two) on Ko-Fi, or use the referral links below.

Nothing in this post is provided as investment advice or recommendations to conduct any financial transactions. There is risk in any of these processes, and you are on your own for that.

If you choose to use one of my referral links to sign up for one of the services mentioned, I’ll either get a share or two of a cheap stock, a few bucks worth of a stock, or sometimes a cash bonus. And I’ll appreciate your support. (Note that promos can change, and I may not come back and update these promos later; see the respective websites for active promotion terms)

  • SoFi Invest (fund an active account including crypto with $1000, and we’ll both get $50 worth of stock) (crypto available)
  • SoFi Money (fund an account with $500, and we both get $50 cash) (Virtual money management account, linkable to Invest and other services)
  • Robinhood (sign up and link a bank account, and we both get a free share of stock) (crypto available)
  • Webull (fun an account with $100 and get at least one stock share, maybe two) (crypto under tags like BTCUSD, ETHUSD, no DOGE)
  • Public (app-only, complete application and get a free amount of stock up to $16, must hold the value of the free stock in the account for 90 days) (no crypto, just stocks)

What is cryptocurrency? Do I get an actual physical bitcoin?

Cryptocurrency is a virtual currency that is created through a process called mining, and can be transferred and converted to other currencies (including “fiat” or what some would call “real” money). You don’t get a physical bitcoin (or ethereum or anything like that), and if you’ve seen one of those metal “Real Bitcoin Coin” items at a store, you’ve just seen a souvenir with little to no value and no association with any bitcoins.

Many cryptocurrencies have developed value, primarily through people giving them value and accepting them in transactions. This isn’t entirely unlike paper money – a piece of green and white paper alone doesn’t have any value, but when a nation accepts that that piece of paper is worth a certain amount and uses it in trade, it suddenly has value. 

The cryptocurrencies you’ve probably heard most about are Bitcoin, Ethereum, Litecoin, and (lately) Dogecoin. Bitcoin is the grandfather of crypto, and has been around since 2009. The others have come along since, to address perceived shortcomings or scaling issues with Bitcoin. Continue reading

Ten years of rsts11.com

On January 28, 2011, I launched this site to move beyond occasional tweets about technology, and to save things for future reference.

Dozens of times a year I’ll wonder which exact motherboard was in a system I built, or what vendor I regretted seeing sink into the ground like a big ol’ glowing gopher, and a quick glance on this site cleared things up for me more often than not.

Once in a while, I find something to post that makes a difference for someone else, whether it’s technical, soft topics, or even travel related (over on rsts11travel, which came four years ago this month).

As always, I have a draft folder full of content waiting to be drafted into service. Some new projects have come up, and some old ones have warranted a refresh, so as I get some stuff sorted out at home, I’ll get some posts out in the open for your enjoyment and education.

If you have suggestions or ideas, or even hardware you’d like to have evaluated, reach out through the comments here or our contact page and I’ll see what I can do.

And if this blog has helped you over the years, feel free to send me a virtual coffee at https://ko-fi.com/robnovak (the $3 suggested donation actually covers two Nespresso pods and then some, so it’s like buying us both a coffee, but I’ll drink yours for you).

Some longer anniversary posts from the past:

[Featured photo is from the Duran Duran 80s greatest hits album Decade, available at Amazon and everywhere old music is sold.]

I didn’t think I’d be able to say this so soon… (He’s baaack at Tech Field Day!)

As many of my readers know by now, my time at Cisco came to an end last month. When I decided to leave Disney and come to Cisco 6 1/2 years ago, there were two main things I knew I would miss about being in the “real world” — Disney cast member discounts, and being a Tech Field Day delegate.

Well, there’s no change on the Disney discount front, but this week I’ll be back as a TFD delegate for Tech Field Day 22 the latter half of this week.

Riding in the limo at SFD5 in 2014 – four of the five people pictured will be at TFD22 this week with me

How did you get to this point?

In May 2014, I posted a two part post on storage vendors (“These 3 hot new trends” part 1 and part 2) from Storage Field Day 5, my last full event as a delegate. A month later, I moved to San Francisco for most of a week thanks to TFD sponsors, to participate in my second Cisco Live event and to interview for a position with Cisco.

I was offered the job the day I got home from the event, and a little under a month later I got badged at Building 9 and began the 6+ year adventure in mega-vendor sales engineering. But as a vendor, I wasn’t terribly welcome among the Tech Field Day delegations, although I was still invited to the parties, and managed to qualify for the roundtable at SNIA’s Storage Developer Conference in 2017. I did continue my participation with Interop over the years, leaving my Cisco ears (instead of my Disney ears) at home, and even attending a Cisco briefing during one of the events, in the former Playboy Club at the Palms in Las Vegas.

What is Tech Field Day? Do I need a ham radio?

If you’re new to Tech Field Day, the idea is pretty much the same as it’s been for over ten years, even if the participation venue has moved from conference rooms to Zoom. Stephen Foskett, founder of Tech Field Day and Gestalt IT, brings together independent analysts, practitioners, geeks, and javelin catchers to meet with companies producing something in the tech sphere.

From the huge established names (like Dell, HPE, Cisco) to companies just coming out of stealth and talking to the public for the first time, you get to see companies facing unstaged questions in realtime, discussing the product or service, the decisions behind them, and how people who might actually use the product or service see it rather than how the company’s marketing and PR team want it to be seen.

And unlike most press conferences and analyst events, anyone on the planet (pretty much) can tune in, watch and learn, and pose their own questions through social media to be answered. There’s no registration required, no event fees, and if you missed a company you can go back and watch within a couple of days.

Pro-tip: If, like me, you’re on the tech job market, Tech Field Day’s archives can be a great resource for learning about companies you might be interested in working for. Just go to the main page and search for a company name. Not everyone is in there, but you can get a good feel for the companies that are, from what they do and how they’ve evolved over the years to how well they understand their product and the market they’re competing in.

So what’s different for you this time?

Tech Field Day 9 in Austin, Texas (June 2013)

After five full delegate events in person, and seven roundtable/TFD Extra events (details), I’ll be back as a different kind of delegate, for obvious reasons. TFD22 looks to be the largest event yet, with twenty-five delegates. No, really, 25 delegates. The nine presenting companies will be split up into early and late shfits to accommodate delegates from around the world, and since none of us are traveling to an in-person location, we can focus on presentations in our own time zones… and some of us will be hopping onto the other shift’s events as well.

The early shift, for my European and Eastern colleagues, will feature Commvault, Veeam, VMware, Quantum, and Red Hat. Their sessions run from 5-10am Pacific, and while I’d love to see them live, I’m not sure 5am is a time I believe in just yet.

You’ll find me in the late shift (11am-3pm Pacific), meeting with MemVerge, Riverbed (who I last visited here in Sunnyvale for SFD2), Illumio, and oddly enough, Cisco. I only see three names among the other 24 who I’ve shared TFD events with, but about half of them are in my online circles and I’m looking forward to meeting the others.

If you’d like to watch along with us, check out the TFD page for livestreams on several platforms starting Wednesday morning, December 9th. You can click on this garishly-large TFD logo to get there if you like. And if you miss the sessions you wanted to watch, they’ll be posted on the same link within a couple of days for you to watch at no cost.

Feel free to follow along on Twitter and ask your questions – tag with the hashtag #TFD22 and the delegates will try to relay your questions to the presenters.

My three unfair advantages in the COVID-19 era

A lot of people have had to make a lot of adjustments to life in the pandemic era, from work to home life to eating and shopping.

I’ve had three serious advantages–some might even say unfair advantages–that made my transition smoother than most. Probably the most disruptive element of the shelter-in-place and travel restrictions for me would be the extra people in the house all day, and that’s still a bit unsettling at times.

But let’s take a look at the advantages, and see if they might help you as well.

1. I’ve worked from home for the past six and a half years.

This one is hard to do retroactively, of course, but in terms of remote access, working without coworkers face-to-face, and making my own coffee every morning (several times, most days), I was training for the pandemic since I started working for Cisco in 2014.

Before the pandemic, I did have opportunities to get out and see my colleagues in person, whether for our sales kickoff in Las Vegas or conferences or team gatherings at company headquarters. Those have mostly dried up, although I did see a partner engineer briefly a couple of months ago when dropping off a couple of pieces of hardware for him.

I have had to adjust the home environment for the new “coworkers,” including a high school student and a non profit program director who were doing their daily grind in the house, the latter in front of my “daily grind” machine farm… never quite got around to setting up a coffeemaker in my home office, but I did get a second beverage fridge set up.

I have to admit that I hadn’t really prepared for the letdown of virtual conferences, but I wasn’t entirely surprised. On the upside, almost all of the content from the half dozen conferences I’ve “attended” has been made available more promptly afterward, so I can go back and review a lot of it rather easily.

2. I’ve spent weeks in Las Vegas over the past decade

You might be surprised by this advantage, but it definitely prepared me for some of the personal hygiene issues that we’ve been asked to address to slow the spread and reduce risk of contracting the virus.

After the first time or two that I got sick after a trip to Las Vegas, I learned to wash my hands frequently and to never, ever touch my eyes or face unless I had just washed my hands or had a wipe to use.

As a melting pot of bacteria and viruses and just ordinary grime from all over the world, Las Vegas is an easy place to pick up something you didn’t want, whether from handrails, escalators, elevator buttons, door handles, and the like. Browsing through electronics and thrift stores could sometimes leave “weird stuff” on my fingers, but nothing like the handrails at Planet Hollywood or elevator buttons at Mandalay Bay.

So getting in the habit of washing my hands regularly (not just after going to the bathroom, although that’s one a lot of dotcom workers never quite figured out), and keeping my hands away from my eyes (one of the two easiest places to get things introduced to your bloodstream), helped reduce the risk of getting something in Vegas, or in conference facilities elsewhere, or partner offices, or just around town.

I’ve overused subscription services for several years

Note: This section contains affilliate and referral links. You can obviously search for the sites yourself if you don’t want to toss me a few bucks here or there, but I appreciate those of you who do.

There are usually cases of toilet paper and/or paper towels, and plenty of antibacterial wipes and sprays, on a shelf in the garage or in the front closet, thanks to the Amazon Subscribe and Save program. Some brands and products have disappeared from the program over the past few months, and others have popped up (including the “pick 8 scrabble tiles to name your brand” sort of companies), but between these offerings and the occasional sale at Target, we were pretty well positioned on paper and cleaning products from the start. Yes, there was one $1/roll toilet paper purchase, but

I also have to admit to keeping my breakfast/snack drawer under my desk stocked through this program as well (Clif nut butter filled bars, Kind bars, Belvita breakfast biscuits).

This program does mean that at the beginning of every month, I have to review what I’ve used as usual, and what I don’t need for another month or two. And I would recommend comparing the pricing and varieties to what you can get locally, as sometimes you’ll find a better deal at a grocery store or big box store. But as a backup in case you forgot to buy napkins or paper towels or car fluids or even underwear, it’s worth looking into the option.

Check your credit cards for Amazon promotions, or look into one of the Amazon branded credit cards. For example, Discover Card has 5% back on Amazon purchases for the fourth quarter of 2020, for example, and Chase Freedom has them sometimes as well. (These are refer-a-friend links, and I will likely get a modest reward if you sign up for a new card through them.)

And if you’re more inclined toward boutique cleaning and hygiene supplies, you may want to look into Grove Collaborative. They had toilet paper when other online sellers were running low, and they carry Mrs Meyer’s method, Seventh Generation, and their own house brands of various products for bath, kitchen, and general household cleaning.

They can be pricey compared to mass market stores and brands, but if you’re looking for uncommon products and environmental friendliness in your purchases, it’s worth a look. We’ve bought two large boxes of their supplies, and will probably look at restocking for the holidays, but we still mix these products with the more common brands.

Where do we go from here?

I’m hoping that things continue to stabilize, and I’m already looking forward to a careful visit to Las Vegas this winter, and a car club weekend run in the late spring. I’ve added disposable masks and hand sanitizer gel to my car club trunk bag, but we’ll see what else becomes relevant as normal comes back closer to normal.

What have you learned from the pandemic adjustments? Share in the comments, or join the conversation on Facebook or Twitter.