Trezor Review - How to Setup - How to Use

A popular saying in Crypto is “if you don’t hold your private key you don’t hold your money.
trezor, trezor review, trezor hardware wallet, best hardware wallet, ledger, nano, crypto, store bitcoin, bitcoin wallet

One of the safest way to hold your private key is with a hardware wallet.  Something that you know is safe, secure, private, and easy to do.  It doesn’t matter how much money you have invested, a hardware wallet is good practice and something everyone should do.  Take it from the thousands of people who have lost their savings, weather through a computer crashing or Trojan virus stealing from a software wallet or exchange being hacked.  Don’t wait until something bad happens before you take the right steps.  A hardware wallet is one of the best things you can get.  For all you beginners maybe you are wondering how safe it is….or how do you even store them….and maybe you read a lot about people saying “you need a hardware wallet”.  One product that always comes up is Trezor.  That’s because they’ve been around the longest, since 2014, and are trusted.  I contacted Trezor and they sent me their hardware wallet to review.  
how to use trezor, best hardware wallet, bitcoin wallet, ethereum wallet, litecoin wallet, crypto wallet

What i’m going to cover is:
  • What comes in the box
  • How to set it up
  • How to send and receive coins
  • My opinion
Here is a video review i did of the product where i go into detail about how to send and receive money:


With hardware wallets, your private keys are not exposed.  With the Trezor wallet the whole safety is that your private key is never given out.  They are never online, they are never on your computer, they are never given to you.  You don't even know what they are.  Those are all places where someone could steal them.  It’s dummy-proof for people that want to be secure.  Even if someone is trying to steal your money and your computer is infected with a virus looking for private keys, the Trezor is separate from all of that and secure.

Other options of storing your money are:

  •  Leave on exchange like Binance or Coinbase - not secure, can be hacked, you don’t have your keys
  •  Software/Digital Wallet - computer can have virus
jaxx wallet, jaxx menu, jaxx coins electrum wallet, electrum menu, electrum bitcoin ethereum
  •  Paper Wallet - slightly complicated for beginners, can be stolen or lost
how to paper wallet, ethereum paper wallet, ethereum wallet
bitcoin paper wallet, paper wallet template, crypto keys

Let me quickly show you what comes in the box, and i’ll start with the box itself.  First, make sure you purchase from Trezor or Amazon.

Amazon site

buy trezor amazon, amazon trezor, trezor amazon, trezor price

Trezor site
where to buy trezor, buy hardware wallet, hardware wallet price, best hardware wallet

Do not buy from ebay.  I will why you shouldn't later.

Make sure that the box is sealed with this sticker on the top.  
trezor security, most secure hardware wallet, how to store crypto currency

The box is well sealed and comes with a tamper-proof sticker sealed at the factory.
trezor factory sealed box

trezor box front, trezor

trezor box back, trezor instructions

This should not be cut.  It proves it hasn't been tampered with.
hardware wallet factory seal

Here's everything that comes in the box.
what comes with trezor, contents of box, recovery, pin

I was expecting a ton of instructions on how to use the wallet, but it was actually short and to the point.
trezor instructions, hardware wallet instructions, ledger s

They tell you everything you need to know and nothing more.  Which is good.  You aren't bogged down by information.
trezor user manual

You get two recovery seed booklets for writing down your words.  These should then be kept in in a different place than your Trezor.
24 recovery seed words, getting seed words, recording seed words

Connector cable
trezor cable type

Type of plug
trezor plug, hardware wallet plug

Connect to USB
how to connect hardware wallet to computer, trezor to computer

The Trezor should be clean and empty when you get it.  Nothing should be loaded on it.  I downloaded the Google Chrome Add-On.  It made it really easy to use.

The only instructions you need to start are right there on the Trezor when you plug it in... go to trezor.io/start 
trezor setup, software, menu, website

You then add the software to the Trezor and it tells you when it's done.
where to download trezor menu, software, update

The screen and 2 buttons are really easy and intuitive to use.
trezor buttons do

Simple design

trezor size

The next step is to setup your 4 digit PIN.  You don't type in the 4 numbers, in case there is a key logger on your computer which could just steal the numbers.  Also you don't click on the numbers, in case there is a screen capture program on your computer.  The numbers are shown on the Trezor, and Dots are shown on the screen.  You click on the dots that correspond to the PIN numbers.  This is really well thought out and makes a ton of sense.
how to trezor pin numbers, how to input

Next you are given your Recovery Seed words to write down.  It gives them to you then makes sure you have written then down correctly.
getting trezor recovery seed words

And triple check
trezor screen, buttons, menu

After that you are all set, ready to visit their site and transfer coins.  It took me a few minutes before the Trezor linked to their site and showed up correctly.  You will be given your Public Keys that you can use to accept coins.  For example below it shows my Public Key for one of my Litecoin accounts.  There are multiple keys for each type of coin.
get trezor public keys, show public key, private key

The real trick is that it lets you send coins/tokens without every revealing your Private Key.  That key is hidden inside of the Trezor.  The Trezor website is great for beginners and easy to use and understand.  However for Ethereum and ERC-20 tokens it sends you to MyEtherWallet for making the transactions.  I found that it can be a little tricky to understand at first.


The trezor website has been update and a new menu is used for Dashboard, Send, Receive, etc..

All the coins/tokens that the Trezor supports.

Sending and Receiving coins with the Trezor and their menu is rather easy and intuitive to follow.  Again the private key is never given.  However if you have never used the MyEtherWallet website and menu, it can be a little confusing for sending and receiving Ethereum or any ERC-20 token.

Here are some common questions and answers:
  • Q.  If Trezor is lost or stolen are my coins gone?   
  • A.  No you can recover them with 24 word recovery seed.  Plus they would need your pin as well to get into the device.  And can’t brute force pin because it has a built in wait time that gets longer and longer the more times an incorrect pin is entered.  You can also add passwords to each account in the Trezor for an additional measure of security.

  • Q.  What happens if Trezor goes out of business?
  • A.  Doesn’t matter, because you hold your private keys, you hold your money.

  • Q.  Is there any way i could be scammed or have my money stolen?
  • A.  If you buy a Trezor from less reputable places like eBay someone may try to scam you.  There were cases of people buying the Ledger wallet and the seller included a fake recovery sheet of paper with words on it.  This would have given the seller control of the wallet.  When you get your Trezor it should be blank and the words should be given to you through the Trezor itself.
fake ledger seed words scam, scratch off, ebay, scam

  • Q.  Which coins are currently supported?  
  • A.  At this moment it is Bitcoin, Ethereum (+ all ERC-20 tokens {which there are a TON of }), Ethereum Classic, ZCash, Litecoin, Namecoin, Dogecoin, Dash and Bitcoin Testnet.  A majority of new coins are actually ERC-20 tokens, so the Trezor does support a lot.

  • Q.  How much does it cost?
  • A.  Price - $100

  • Q.  Do i need to have the Trezor plugged in to receive money?
  • A.  No.  Only needs to be plugged in to send money.  Your Public Key is given out freely, this can have money sent to at any time.  But to send money out, you need it connected to access your Private Key.
trezor cost, hardware wallet cost, best hardware wallet to buy for ethereum bitcoin

  • Q.  If i hold Bitcoin on it, will i also get the forked coins?
  • A.  So far they have supported the major forks, not the tiny useless ones.  Bcash and Gold = yes.  Bitcoin Diamond = no.  There's also dozens of other forks that have occurred.  Most of these are worthless, cannot be traded, and no wallet will support them.
all bitcoin forks, gold, diamond, bitcoin, platnum, cash

Here are some other thoughts:
  • Should you buy a Trezor if you have less than $100 invested?  Yes, for a few reasons.  That $100 might turn into a lot more.  It's good practice.  You might want to add/invest more and the Trezor will continue to provide some of the most secure storage.
  • Especially if your strategy is long term storage or if you are giving it as a gift.  Think of it as Insurance for your crypto.  There's no worse feeling then losing your crypto investment or having it stolen.
  • For added security you can use it with the Google Chrome Add-On in an offline mode, not connected to the internet.  This makes sure you get familiar with the interface before making any transactions.
  • You might be questioning whether to get one, but you won’t regret knowing your investment is safe.  Without it, it’s like having your bank account or 401K sitting in your desk drawer where anyone can take it.  This way it’s secure and you can sleep soundly.
  • You have full control of your cropto, you have your keys (even though private keys are hidden), several security measures which makes it Dummy-Proof.  Most of the time when people lose their coins it’s because of User Error, either sending the wrong key, malware on their computer, losing their keys, using a fake website.  The Trezor makes it super secure and guides you every step of the way.
  • There’s so many stories of people finding wallet files with #### bitcoin on them and people not being able to retrieve them.  This is a way to ensure that if you do make a huge profit, you can access your money and cash out.
should i buy a trezor, do i need a trezor, gift

  • You should leave instructions on how to access it in case anything happens to you, or for gift. Obviously keep booklet in another location, with someone you trust.  

My Opinion:
I like the Trezor.  Most people are new to cryptocurrency and many just leave their coins on the exchanges.  Thinking, if i try to send them to a wallet or paper wallet i might screw it up and lose them.  The Trezor gives people a safe and secure way to store coins offline.  People like to have it dummy-proof so that they can’t screw it up themselves.  Beyond that all the security features are good too.  So those two things really make this hardware wallet something good to have.  Either for yourself or as a gift for someone.  


How To - Insulate Hotend of 3D Printer to Prevent Clogs

How To - Insulate Hotend of 3D Printer

Previously i wrote about how i was getting filament clogs in my extruder and i showed how i had to disassemble everything to remove the clog.
monoprice select mini, mp select, monoprice 3d printer

It was scary the first time you take your printer apart this much.
monoprice select mini, mp select, monoprice 3d printer

And have the electronics laying out.
monoprice select mini, mp select, monoprice 3d printer

It turned out to be a problem with the filament prematurely heating up inside the heat sync, coiling in the PTFE tube, and being unable to push through the tapered hole.  Unfortunately the problem happened a few more times and i started to get sick of prints getting 90% done, two hours into a print, only to then clog up.
clogged 3d printer, filament

Results of filament coiled up.
fix clog in 3d printer

I knew that the problem was heat traveling up to where it shouldn't be.  Meaning, the hot end should be hot and the heat sync should be cool.

I thought of a few things that could fix this.  One was to install a bigger fan, which could blow more cool air on the heat sync.  I cover this in another post about installing a 50mm fan on the 3D printer.

Another fix would be better insulation on the hot end.  I noticed that the insulation wrap which was on my heat sync was in pretty bad shape.
insulate hotend, 3d printer

Keep the hotend hot and the heatsync cold.
fix hotend, 3d printer

So i figured that if i could insulate the hot end better it would prevent excess heat from traveling upward.  Some possible solutions for insulation were:
- Several layers of kapton tape
- Buy new insulation and tape wrap
- Fiberglass wrap
- Carbon fiber wrap
- Aluminum tape
woven fiberglass

Random fiberglass strands.
strand fiberglass

Aluminum tape.
aluminum duct tape

Whatever solution i decided on had to withstand the 250 deg C (450 deg F) temperature that the hot end would get up to.  I checked and aluminum, carbon fiber, and fiberglass wold be fine with temperatures up into the 1,000 deg F temps.  And since i had fiberglass, carbon fiber, and aluminum tape in my shop already, i decided to use it.

Actually i decided to go with just the carbon fiber and aluminum tape.  I bought a big spool of what's technically called "carbon tow" on Amazon for something like $20.
carbon tow, carbon fiber

I thought that it would do a better job with the high temps than the fiberglass.

I wanted to tightly wrap the hot end with carbon fiber, especially the top, then seal everything with the aluminum tape.

One thing i forgot to do was first...wrap all wires with Kapton Tape.  I accidentally had the aluminum tape over top of the wires to the heat break and shorted out part of the board.  So make sure to protect electronics and wires with kapton tape.

I used the carbon fiber strands and wrapped the hot end and steel tube connecting it to the heat sync.  It was a little tricky to wrap a small square shape and not interfere with the bottom nozzle.  But i got it wrapped pretty tightly, then covered all the fiberglass with aluminum tape.  I thought it looked ok.
monoprice select mini hotend

Here's the carbon fiber tow wrap that i used.
cheap carbon fiber

This is when i learned an important lesson.  Heater cartridge wires don't like to be touching each other.  It turns out that either the carbon fiber or the aluminum tape was touching both of the heater cartridge wires, which caused a big short.  The printer started fine, but when i set the extruder temp it broke very badly.
short circuit 3d printer

I ended up burning through the two red wires where it connects to the heater cartridge.  I also ended up breaking a MOSFET chip on the main circuit board, but that's another story.

What i should have done was to buy Kapton tape and wrap everything first.  Then wrap with insulation and cover with aluminum.  That way the Kapton tape would have protected all electrical wires going to the thermistor and hot end.

And actually a few weeks later that's what i did.
e3d hotend replace

Had i known now, what i knew then, i would have just gone online and just bought a new heater cartridge.  But at the time i had never replaced that part and i thought it was permanently attached, i could not find the allen screw and remove it.  So for $25 i ended up buying a whole new E3D V6 chinese clone RepRap hot end, which came with a new heat sync, hot end, thermistor, heater cartridge, PEFE tube, and fittings.
chinese e3d hotend, 3d printer

I'm happy with replacing everything, that's part of 3D printing...fixing issues that are usually self-caused.
monoprice e3d replacement

But yet again, installing the new V6 hot end is another video and post.


3D Printing Filament Explained - PLA, ABS, PETG, Nylon, TPE, TPU, PVA

One of the first questions people ask after getting a 3D printer is "What material do i print with?" There are lots of different filaments available and even more companies to buy it from.
3d printer filament, type, different, cheap, buy

Filament Explained - 3D Printing Materials


If you are just starting with 3D printing it can be daunting when you hear about all the different materials to print with. Everything from PLA, ABS, PET, TPE, Nylon, etc. It's important to understand what all of these materials are, how they print, settings required, and what types of prints you can make.
different types of 3d printing filament, what to print with
I'm going to try to explain good filaments for beginners, what are more advanced filaments, and some unusual filaments for printing specific things like gears, cell phone cases, support structure, etc. I will also explain the difficulties of printing with things like nylon, including temperatures you need to be able to print with just to consider buying nylon filament.
best filament to 3d print with, try, new

Results from all the filament i tested in past reviews.
results of filament review, 3d printer filament

Another view.
results of 3d printer filament, types, different

Most printers will say in their specifications that their printable materials are PLA, ABS, ... If you are just starting out you will think "Great, i can print TPU...What the heck is TPU?" While doing my filament reviews i received samples from several different filament companies. One of the best info sheets that came with filament was from eSun. They included this with their roll:
esun table of filament, description, temp, settings

Filament, description, and uses.
3d printer filament, uses, cases, flexible, cost

More filament stacked up.
cheap 3d filament spool
This is great for quickly explaining the baseline settings for filament and an example of what each filament can print. As far as popularity, you can see that PLA and ABS make up the majority, but it is my opinion that PETG will only continue to grow.
most popular type of 3d printing filament

So going into more detail on each filament type:


This is by far the most popular filament people print with. It is easy to print with, forgiving, versatile and works under a wide range of settings. PLA is very rigid, it does not bend before it breaks, it just shatters. There are also PLA's with additives in it like carbon fiber, wood, steel. Although with some of those additives you need a special steel nozzle because it can wear out. Exteruder Temp = 190 - 220deg C Heated Bed Temp = none or 50deg C
PLA filament

Close up view.
close up view of pla filament

Shiny PLA filament
shiny pla plastic

Great for clean crisp parts like these structural 3D printer parts for a fan shroud.
how to 3d print with pla

Strong yet brittle.
printed pla part example


This is the second most popular filament that people use. Unlike PLA, ABS is more pliable. It will bend and deform before breaking. However there are some reports that printing with ABS produces hazardous gasses, because of the melting plastic. So it is recommended to use an enclosure and vent. Extruder Temp = 235 Heated Bed Temp = 90
spool roll abs plastic cheap

The most popular toy in history is made of ABS. It's injection molded but still the same material, which goes to show the strength of ABS plastic.
what are lego bricks made of , abs plastic


This is quickly becoming more popular because of its combination of features between PLA and ABS. PETG is the same material as plastic bottles. It has a great look when you buy a Clear colored filament. It is ductile like ABS but easy to print with like PLA. It can be very stringy though and printing can be a bit trickier with settings like reduced speed and increased retraction. This comes in several proprietary names like E3D's Edge filament, FormFutura's HDglass filament, ColorFabb's nGen filament... Extruder Temp = 230-250 Heated Bed Temp = 65-85
e3d edge filament, petg, copolyester, filament

Parts like this come out very clean yet incredibly strong.
best of pla and abs is petg

You can get great colors and shinyness with PETG, perfect for vases and decorative prints.
super shiny petg filament, vase

Again, very shiny and semi-transparent parts.
best filament to 3d print with

Nylon / Nylon Bridge

Nylon is an extremely strong filament, probably twice as strong as any other filament in this list. However it is difficult to print with and not every printer is capable of printing nylon. That is because of the extremely high temps required. The extruder temperature needs to be up somewhere around 300deg C and most 3D printers max out at 250deg C. Another issue with nylon is that if it is left out it will absorb water and start popping while printing. Therefore you need to dry this filament out in the oven and keep it in a dry airtight place. Beyond that you will need to print at slow speeds, like 30mm/s, and only have the cooling fan on while trying to bridge. Extruder Temp = 250-300 Heated Bed Temp = 70
how to 3d print with nylon

Perfect for parts that require high strength or will experience heavy wear. Nylon is almost double the strength of other material in this list.
3d print nylon gears


This filament is specifically for bendable rubber-like parts. For example cell phone cases. It can be difficult to print with because it needs a large retraction to control the oozing. You will have to really experiment with the settings to get it to print without having it curl up and cover the nozzle. Extruder Temp = 220 Heated Bed Temp = 40

The most popular of this filament is NinjaFlex.
flexible filament, ninjaflex

It can be tricky to print with, requiring modifications to make a solid connection from your extruder to the hotend.
how to 3d print flexible filament

But perfect filament for printing things like cell phone cases, which need to bend and flex and absorb impact.
how to 3d print a cell phone case, flexible


PVA is specifically used for printing support for parts. It is used with printers that have dual extruders. The reason it is only used for support is because PVA dissolves in water. That means that you can print complex/elaborate parts like honeycomb cubes, which would be impossible to print without support. And if you used just 1 filament it would also be impossible to get in and remove the filament once it is printed. Extruder Temp = 180 Heated Bed Temp = 45
pva filament, dissolving filament

Here is an example where PVA is necessary.  This model requires support, but it would take forever to remove the support once it's printed.
how to print with dual extruders, dissolving

Several hours into it's water bath and the PVA is dissolving away.
dissolve 3d printing filament

Finished part with all support gone.
how to 3d print the impossible part

Again, another print that would be impossible without support, but removing the support would destroy the print
3d print dissolving filament


This is similar to PVA in that it is used for support, but this dissolves in a limestone solvent. Extruder Temp = 220 Heated Bed Temp = 55

Felty / FeltLay

This filament is used when someone wants to print porous objects like filters and sponges. It is a 2 part material where one part is later dissolved. Extruder Temp = 230 Heated Bed Temp = 40
3d print felty, flexible foam

Foam / LayFomm

Again, similar to Felty, this is for printing porous objects, but this creates more of a rubbery sponge like object. Extruder Temp = 220 Heated Bed Temp = 50
how to 3d print foam, layfomm filament

Beyond all of these there are even more filaments that people print with such as resin, XT Copolyester, TPC, FPE, Jelly ...


3d print cheese wiz

Cheese and crackers in under 1 hour.
funny cheese wiz 3d print


Pour an entire house in a day.
3d print a house, concrete
So you can see that there's lots of different filaments for all sorts of uses, from bendable cell phone cases to very strong gear parts. Most people won't really care about the odd-ball stuff, but might be interested in trying.