Monoprice Select Mini 3D Printer Experience

IMG_0578I’ll admit, when I bought the Monoprice Mini Select 3D printer, I knew almost nothing about 3D printing. That won’t get you very far after you unbox the printer. There are some basics you need to learn to get good prints.

Once you have a 3D model in a print file format like STL you still need to put it in a program to tweak for your printer settings that has a slicer that creates a file usable by your printer. Beyond that, many prints require extra work to determine the thickness of walls that will look nice, supports for prints that have large overhangs, and more. It’s not rocket science; you just need to learn how the process works.

Thankfully, this printer has a lot of online help from owners on G+, Facebook, and especially YouTube.

Here’s a print session for a Pi Zero W case I found on thingiverse.com.

Tuning PID for Better Temp Control

Apparently, the out of the box temperatures for printing for this printer can fluctuate a lot. Most control systems use a PID controller to constantly measure the target values and use specific values for this (specified by the letters PID in the acronym). The good news is that you can tweak this printer’s values to get better results. I did this before my first print. Resources below:

While you can probably put these commands in a.gcode file and print them, I used this software to set the values. http://www.pronterface.com/

Printing Hints I’ve Discovered

  • Skip using the SD card and printing from the printer menu. Sometimes prints hang if you don’t upgrade the firmware (wanted to stay out of the box initially). Print from a computer with Pronterface (above) or even better, use Octopi (what I do now). Don’t use Cura on Mac to print; it just pauses every 10 seconds.
  • Use a good “slicer” application to create your print files. I do like Cura, and it’s available on Mac and Windows. If longer items can fit sideways, they’ll print faster. Have an item too large for the bed? You might be able to rotate it slightly to fit diagonally.
  • Print the first layer SLOW-half speed-on anything long or with quick angle changes.
  • Watch the printer. It can go bad. Octopi supports a camera!
  • Prints don’t stick without some help. Use a “raft” with your print if it doesn’t cover much surface area, and generally always use a light layer of glue stick on the tape on the bed.

The Octopi interface is great and works from any device anywhere. Why be tethered when you can watch remotely?

My Impressions

While I got some great prints with a little tweaking, I’m a bit concerned that this printer could be a black hole of my time doing mods. Apparently, Monoprice has a new model coming out in a few weeks that has many of these community mods built in, and most importantly, a replaceable hotend. I can already tell I’ll need to reroute the cables under the print bed (not attached correctly), install a stabilizer, and a couple other items. I may take advantage of Monoprice’s 30 day satisfaction guarantee and wait for the upgraded version to save me some time (and money in the long run).

Good luck!

My Nashville Visit

My wife and I had a few days to getaway and decided to checkout Nashville. I put together a few notes of what was great for us in case you are considering a visit Nashville is fun even if you aren’t a hard core country music fan (we aren’t), however if you detest country music that may lessen some of the fun I’ll recommend.
photo 1Where to Stay…
If you don’t mind dumping $200 a night the Opryland Hotel is very nice, has beautiful indoor gardens (but overpriced food).  If you plan (and you should) on visiting the Opryland theater it’s practically in walking distance (they have buses or you can drive). The hotel even with conferences going on and the CMA music festival starting didn’t feel overwhelming – probably due to the size. It is the largest non-casino hotel in the Continental United States outside of Las Vegas.  Rooms were immaculate and nice, service great. It was nice to get away from the city and have a place to hang out – if you prefer to spend most your hangout time in a honkeytonk bar stay downtown Nashville for sure. If we went back we’d probably stay downtown or at a B&B near the city (but we liked Opryland).

Coffee…
If you like coffee you must visit Barista’s Parlor. It’s in an area outside downtown in an old commercial garage. Don’t let the location or lack of signage from the road deter you – it’s one of the few coffee shops I’ve ever visited where all the employees were passionate about coffee and I’ve never witnessed such meticulous preparation (even in my own kitchen). The espressos are sweet and flowery and the coffees are not dark and full bodied but I think anyone would enjoy them. The strawberry waffles were quite good (both times!). I tried to visit Crema but they were closed … looks like a must-try. photo 4

What to See…
I’d start my trip to Nashville with a tour, and I’d HIGHLY recommend the …. Walkin’ Nashville Tour I’d facebook message Bill after you sign up and ask him for any great local shows going on – he knows the best (and sometimes free) unique shows. There is a segway tour also but a lot more pricey and probably not as colorful as Bill’s tour. If you have time get a tour of the famous Rayman auditorium – it’s a corner piece of the town and country music (Bill takes you there but not IN on his tour). The replica of the Parthenon in Millennium Park is worth checking out. It’s $6 to go inside but well worth it IMHO. A wide angle lens would be nice for the inside. We saw the famous “Grand Ole Opry” show and it was quite a fun experience. Go ahead and bring your flash camera and check StubHub for tickets if sold out.

Food….
I’d try Puckett’s and go about 7ish so you can catch live music that starts at 7:30. We hoped to try Loveless Cafe (outside city) but was too far and heard of long waits – maybe next time. We had a lunch at Jack’s BBQ which was a local “dive” which was just “ok”. It can be hard to get into places that are popular so I’d recommend not flying it by the seat of the pants (which we did). Try for reservations and ask when live music starts.
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It seems a lot of things have activity Tuesday, Fri, Sat night. Many places in Nashville seemed closed Monday. I probably wouldn’t do a Wed/Thursday visit personally. We did a Mon-Wed visit and it was good we had Tuesday!

Why I had Chick-Fil-A for Lunch

My LunchMostly I was hungry, and they have yummy chicken. I might have another reason though…

Let’s review some fast food politics.

  • Chick-fil-A gives money to non-profits that patronize their business which also support the Defense of Marriage Act. This act signed into law by Bill Clinton all but disallows same-sex marriage by making it not recognized by the federal government and allowing states to not honor other states same-sex marriage. A company leader recently stated that not having same-sex marriage was his personal religious belief.
  • Starbucks supports organizations that support changing marriage to include same-sex marriages. In addition the company officially supports this political agenda (not just an opinion of a business leader). Starbucks would be on the opposite political spectrum of Chick-Fil-A.

So we have two fast food companies on different sides of a single political issue. One is defending current law and the status-quo, one wants to change it.

When Starbucks made their public move to actively support changing policies on gay-marriage people announced they’d boycott Starbucks. Fair enough – people do that all the time. It’s a valid way to try and get companies with products you like to “see things your way”. Sometimes it actually works.

When a Chick-Fil-A leader made a public statement about his personal opinions on running his private business some people decided to boycott them, fair enough. Other than the company not having an official stance on the issue there are a lot of similarities to Starbucks – but there is a new twist to the Chick-Fil-A story.

Multiple government officials have stated they would discourage or disallow a private company to operate due to its political views. San Francisco stated, “The closest Chick-Fil-A to San Francisco is 40 miles away & I strongly recommend that they not try to come any closer”. The Boston mayor stated Chick-Fil-A wouldn’t get business licenses until they change their politics. Chicago Alderman Joe Moreno stated: “I will now be denying Chick-fil-A’s permit to open a restaurant in the 1st Ward.” Apparently these towns have plenty of jobs already and political issues are a litmus test for doing business.

My personal opinion is that no matter how ugly an elected official finds a company’s political views they shouldn’t penalize companies because of them. All businesses following the law should have equal rights to practice commerce. What’s ironic about this case is that the three Democrat mayors making comments about Chick-Fil-A not doing business in their town likely voted for Clinton (who signed the Defense of Marriage act) and Obama (who supported it as a candidate, but no longer does). One of the mayors, Rahm Emmanuel (Chicago), even served with a president that supported the policy. Apparently for some people who you get your fast-food lunch from is more important than who runs your nation.

Are you surprised how this energized the “right” to eat more chicken? If so, I’d suggest we get a few bone-headed conservative mayors to not allow Starbucks in their towns. The reaction would be amazing and I’d bet would even attract presidential comment. Whether you are right, left, or middle I hope you agree letting elected officials prevent or discourage companies from doing commerce solely based on their political party or political views is a bad idea. I think Supreme Court cases involving what’s known as the doctrine of “unconstitutional conditions” would likely disallow such ideological actions.

So, In support of not letting Fascist-like mayors dictate what politics companies and their leaders must have in order to do business maybe I’ll top off my Chick-Fil-A salad later with a Starbucks latte!

Food Buffet Regulation Needed!

Let’s face it, when you go to a buffet you can over eat – as a matter of fact you’re encouraged to! Just take a look at this sign from a local buffet (one I just overate at) reminding you to “Keep eating, There’s WAY more where that came from“.  The waitress was no help, she was continually asking to take away our plates so we could get more. To top it off she kept refilling our dangerous fountain sodas (full of high-fructose corn syrup) so we wouldn’t have to get up and stop consuming! Totally irresponsible.

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Our federal, state, and maybe local governments need to take some action. Clearly people who eat here regularly, and follow this type of guidance, will become unhealthy. I noticed a very high number of overweight people compared to similar restaurants that aren’t “buffet style”. I’m sure there is some left-over stimulus money or federal grants available to do a study of the obvious here. It’s quite possible overeating leads to obesity and  we know obesity leads to many other illnesses. With cities banning all types of unhealthy fats, schools mandating what foods kids bring in their lunch sacks, and new regulations to force that local “Ma and Pa” deli’s to cough up nutritional menus I think this is a good fit for the a little “Nanny State” action!

Maybe I’m jumping the gun and we just need to raise awareness. I’m sure the media would love to do some serious investigative journalism here. Potentially we can get Morgan Spurlock, director and actor in “Super Size Me”, to consider a new film where he eats daily at a buffet until they stop taking his plate away? Well that might be too dangerous to Mr. Spurlock, he barely survived filming his last “documentary”.

Since the government provides or subsidizes healthcare for many Americans, and you pay for that with your taxes, it’s in our national interest to take action. I’ve got some decent ideas of how regulation of these dangerous buffets could improve the quality of American lives:

  • One Trip Only. It’s fine to give people buffet options, but when they can keep going back … they might, and that could lead to long-term health problems. No more plate-refills.
  • Photographic Warnings. With cigarettes the government required manufacturers to show pictures of the effects of a life of smoking. Taking a page from that playbook, maybe the end of the line should have life sized pictures of naked overweight people? It’s for the good of society.
  • Outlaw Buffets. Unfortunately, people will always think a buffet line means “eat all you want”. Weddings and parties both contain the same dangers. I mean think how hard it is for pastors to stay healthy doing all those wedding receptions with unlimited food!
  • Enforce Food Pyramid. Require all buffet’s to have foods representative of the Federal food pyramid (now a plate with no dessert). The buffet lines should be separated  by type and size in the pyramid.
  • Taxes. Taxes are a great way to reduce things WE don’t like and push things WE do. All restaurants with proper nutritional information and government-portion-compliant will get a 50% reduction in taxes they need to collect. All non-compliant restaurants will have to collect a 25% tax.

Clearly it’s the government’s role to take care of all of us and they need to take action today! I’m going to call my senators and congressman right away. On second thought, it’s possible they might take all this seriously and further erode the ability for citizens to make their own decisions – good or bad. If you like any of these stupid ideas then please keep voting for politicians who feel like their role is to “fix society” instead of protecting our freedoms.

Somebody should create a site about these nanny-state-isms …coming soon….