Failure is a Learning Option

When I was shopping around for my 3D printer, I made sure to do a little research. There is lots of excellent advice to be found in blogs and forums. I felt confident that if I followed a checklist that I would be up and printing in no time, worry and hassle-free.

  1. Do you want to print right out of the box?
    • Why yes I do! But ready to go printers are expensive …
  2. If you are getting a DIY kit, do you have experience with building and construction of mechanical parts?
    • No, but I did build an IKEA bookshelf once …
  3. If you are getting a DIY kit, do you have experience with programming an Arduino?
    • Oh! I can get the LED on my Arduino to blink with the supplied test code! So … that counts.
  4. Should you get an XY printer or a delta printer? Delta printers are harder to calibrate, so it is suggested that if it is your first printer and if you have little experience with 3D printing to start with an XY printer. You also lose build space on a delta printer.
    • Hmm… yeah, but the deltas look so much cooler.

In the end, I ignored all the advice and bought myself the FLSun Delta printer with heat bed and auto calibration. Only one of these has proven to be useful, the other led to … well, I won’t say frustration instead, I’ll say failures. Lots and lots of failures, but they began well before I  needed to calibrate my printer.

My 3D printer once I finally got it all put together.

I had done some research on the FLSun delta specifically and ran across a post that boasted that reviewer had their dad assemble the printer. As a gentleman who had not assembled a printer before it took him a few hours. Me? A couple of days. It was a comedy of errors as I put pieces in the wrong way, used the wrong screws and constantly fought with the little hex keys they supplied at weird angles. On the upside, I giggled joyfully every time I read, “install the other tow in the same way,” or, “fix screws firmly.”

With every setback, I began to understand the framework and geometry of my printer better. I also discovered that you can by hex keys with a rounded end, designed specifically for getting into those odd angles and corners that a “comes with the kit” key cannot do. Bonus, I’ve expanded my knowledge of tools. I couldn’t wait to impress my brothers at the next family dinner (turns out they knew of their existence, sigh).

After I built my printer I followed the instructions on installing the software and calibration. Once done, I made a print. It didn’t work out so I did another calibration. Things still weren’t printing right. So calibrated again … and then again. I started throwing in some random manual calibrations to see if that helped. In the end, I made so many changes that the printer could no longer even perform an attempt at an auto calibration.

My first series of prints. There were supposed to be cubes, they ended up as rectangular prisms.

I was back doing more research and learned how to calibrate my printer by hand. When I finished the calibration, which took a while given how out of whack I had adjusted my printer, I ran an auto calibrate just to see. It agreed with my adjustments and had no corrections to offer. I felt pretty darn proud.

At any of the failures I faced along the way, I could have given up and walked away. Instead, I sighed, took a sip of tea, or maybe I took a break, but I always tried to apply my what I learned in math to the situation – This answer is wrong. That’s okay. What Can I learn from this mistake? Where might I have missed a step? What variables can I change? Are things defined correctly? Can I redefine them? Is there a tool in my math kit that can help me here?

It sure has come in handy and will continue to come help as I know try to figure out how to print with ABS, let’s just say it’s off to a rocky start!

I was hoping to print some vibration absorption supports, I ended up with a mess.

Book Review: 50 Things to See with a Telescope – Kids

Cover page of 50 Things to See With a Telescope - Kids

I was fortunate enough to get a copy of John’s book from him when we met at this past total solar eclipse. As a science communicator at the Manitoba Museum’s planetarium, I am always on the hunt for good astronomy books, especially ones that are accessible to a younger audience.

John Read’s “50 Things to See with a Telescope Kids” turned out to be one of those rare books. Not only did it teach and remind me a few things I didn’t know or had forgotten, but it was also a light read with spot on and fun visuals making it great for a reading session with your kid.

The book is a good introduction on what to expect from the hobby of amateur astronomy and gives good tips on how to enjoy your night beneath the stars. The first thing I really like in John’s book, compared to some I have read, is that he is up front and honest about the fact that it takes time, patience and practice to find objects in the night time sky.

His reminders about the challenges of telescope use, especially around more difficult objects to find, is so important to keep in mind, otherwise you and your child will get discouraged. I remember taking four evenings just trying to find The Great Globular Cluster in Hercules (Target 37 in the book) when I was just starting out. Despite the frustrations, I kept at it. The sight was worth it.

This leads me to the second thing I really appreciate about 50 Things to See with a Telescope; John has included images of all the objects in his book as seen through a small telescope. It may seem obvious, but what you will see through the eyepiece of your telescope (or for some targets through your binoculars) will be very different from the images and views of the Hubble Space Telescope, whose images now colour our expectations of space.

The images are also incredibly useful as guides for what you should be looking for. Have you ever tried to find a blue cup in a friend’s cupboards when there are six different blue cups mixed in with a dozen other coloured cups? Well hunting for objects in the sky can be a little like that If you’ve never seen the objects before, these little beautiful images are sure to help you out.

I really appreciate that John included at least one binocular target for each season. This gives kids and parents alike a chance to try out some of the targets with a pair of good binoculars that they may already have at home and see if this is a hobby they want to explore deeper before going out and buying a small telescope.

There were a couple formatting issues where an image would cover the text a little, and some terminology and phrasing that I would perhaps have avoided in my personal style of writing, but none of this takes away from the enjoyment and usefulness of the book.

50 Things to See with a Telescope Kids is an excellent first book or addition to any kid amateur astronomer’s bookshelf – even for those of us who are still just kids at heart.

P.S. I wrote to John Read about the formatting issues and and he informed me that the issues have been addressed in the latest publications of his book.


Reflections on the Total Eclipse of the Sun

I am hoping to capture some of the mystery and excitement from my girlfriend’s and my journey to Grand Island, Nebraska, to see the total solar eclipse. When we arrived on Sunday afternoon, the campsite was abuzz, not with the talk of the eclipse, but of old friends reuniting and introductions being made to individuals who would become new friends.

Later that evening, after getting settled into our campsite, the talk turned to the weather. We were getting updates and advice from Jan Anderson, who was elsewhere along the path of totality. Regrettably, we were looking at cloud cover for our campsite. Two plans were formed; one, to get up early and drive west as far as you could go past Alliance. The other, to only go a few hours east and hope for what my new friends called a sucker hole.

It was so energetic watching experienced amateur astronomers looking at all the weather models and discussing where the models did or did not overlap.

At first, my girlfriend and I were going to join the crew going west, but we decided to stay and be with friends. It was a good choice, because the next morning, after the models came out, we were forecast to have clear skies with scattered clouds. We had a lazy breakfast, then set up our cameras and telescopes with some friends from the Halifax R.A.S.C. We got all set up just as first contact arrived; the slightest piece of the Sun disappeared behind the tiniest hump of the Moon while looking through my hydrogen-alpha telescope. I chose to take pictures through my telescope, while my girlfriend used her zoom lens equipped with a white light solar filter.

About ten minutes in, after first contact, a bank of clouds started to roll in. Some of the camp was willing to wait and hope for a sucker hole, while others wanted to chase clear skies further west. My girlfriend and I packed up our gear, jumped in her car and followed her Halifax R.A.S.C. friends west on the interstate. We did our best to keep up with them, but their 85 M/Hr down the interstate was hard to keep up within the 75 M/Hr zones. Twice State Troopers puller over either the car ahead or behind of us. Not wanting to risk having a lecture from law enforcement while totality happened, we kept to the speed limits.

The Halifax crew never got pulled over, but we also did not see them again until we met up at the campsite after the eclipse. We did find a nice mile road just south of Highway 2, right on the centre line of totality. We had just enough time to set up our cameras and my telescope and to watch the last limb of the Sun disappear behind the Moon.

Within seconds of the Sun’s edge disappearing, I took off my eclipse glasses to catch a flash of light as the Sun disappeared from the sky. As the already darkening corn fields fell into the night of the Moon’s shadow, the Sun’s corona came into view as if it had always been in the sky and I was just too busy with my life to have noticed. I let out a gasp that encouraged my girlfriend to remove her eclipse glasses and look skyward.

I do not think my description could ever do it justice, nor can ay picture or painting truly capture its magnificence or awe. Even the image in my mind’s eye pales to the real sight.

The sky was dark with only the gentle glow of a few of the brighter stars and some planets to break up its hue. The corona surrounded a hole where the Sun was supposed to be. Like glass threads, the corona poured down and upwards from this hole in the sky. They did not move and were in sharp crystal like focus. Then they would move without moving, without blur. You would simply accept that they had always been in the new spot. The threads above were asymmetrical to the threads below, like the asymmetry in the face of a lover.

I took it in for a good minute before I, regrettably, decided to try and take a picture. I should have left it alone, as none of the pictures I took had any grandeur to them. I am still happy with them but should have just enjoyed the moment more. I did put my camera away after a few photos and took in the last few seconds of the eclipse. Suddenly a bright flash appeared on the outer edge of the Sun, the so-called diamond ring. I quickly put my eclipse glasses back on – totality was over.

It was only as the darkness slowly burnt off like a fog that I noticed the everything had become colder, that the birdsong had stopped, and that the ever-present song of crickets had grown louder in the shadow of the Moon. In all the experience has changed my life, but do not ask me how just yet. I am still trying to take it all in, still trying to process this wonder that is beautifully worked into the mathematical relationships of the disk size of the Moon with its distance from us in relation to the distance and disk size of the Sun: four hundred times smaller, four hundred times closer.

I am grateful for the clear skies we did get, even the campsite got it sucker hole! I am happy to have shared it with my girlfriend, to have heard the “Ohs,” and “Ahs.’ from the people on the other side of our cornfield, and thankful to possess a self-aware consciousness, granted by God or other means, to truly take in this spectacle, this wonder, this cosmic gem, this gravitationally regulated clockwork of Earth, Moon and Sun.