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(@b)
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Joined: 3 years ago
Posts: 912
 
Posted by: @mrcalm

Now I have a Prusa MK3S with MMU2S

Hi @mrcalm,  I've been thinking about the MMU2S addition to my Prusa for a while now, but hesitated due to a bothersome amount of reports of those who have experienced problems.  So I was wondering what your experience of using the MMU2S has been and how long you have had it?

Many thanks.. though your reply may hurt my wallet 😎 


   
MrCalm
(@mrcalm)
Active Member
Joined: 3 years ago
Posts: 5
 

@Byron there are a couple of things you should print beforehand.  

A new selector: www.thingiverse.com/thing:3725680

A new filament pass-through: wwww.thingiverse.com/thing:3233579

get the compression fittings.

Then pick your poison on one of the filament rewinders. I just printed this one this weekend, waiting for some more bearings, so I can assemble it. www.prusaprinters.org/prints/15857-prusa-compact-mmu2-filament-buffer/author

I have had no problems.  Two jams in 5months.  Both of those you could somewhat blame me.  Things take a lot longer to print due to the loading and unloading of filament but it is really neat with up to five colors in your prints.

Saturday printed a little creature for my niece  19.5 hours no problem

Anymore questions just ask.


   
JoeLyddon
(@joelyddon)
Reputable Member
Joined: 3 years ago
Posts: 353
 

@mrcalm

Hi Pat!

Welcome Aboard!

To get you educated in electronics, Arduino, PI, etc. programming checkout Paul McWhorters' tutorials...  On page 28 of this thread... just change Page# to 28...   He will take you from Ground Zero to Arduino Setup and writing Arduino programs in your first Lesson!  He helped me a lot...  He can do it for you...

This forum and website, etc. will help you immensely...

Enjoy!

 

Have Fun,
Joe Lyddon

www.woodworkstuff.net


   
GoodOleBob
(@goodolebob)
Active Member
Joined: 3 years ago
Posts: 10
 

Hi ... I'm Bob located neat Atlanta, Georgia USA.  My current interest is in moving to the ESP32 from Arduino, and installing/learning Micropython.

I've stumbled my way through uploading the Arduino interface onto my ESP-32S board, while not finding clear instructions on the use of the "Boot" button (IO0) to change the chip's mode.  Now ready to erase the flash and upload Micropython.  Fingers crossed.   : )

I also facet gemstones as a hobby, and would like to port a favorite machine-control program to ESP32.

I was attracted to the blog by the its content and excellent graphics.  The work going into this is much appreciated.


   
codecage
(@codecage)
Noble Member Admin
Joined: 3 years ago
Posts: 1165
 

@goodolebob

Hi and welcome to the forum!  I'm positive you are going to enjoy this place.

I too am near Atlanta.  Just east of the city where that big rock sticks up.

SteveG


   
b
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(@b)
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Joined: 3 years ago
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@goodolebob

I’m about to try to put micropython on a feather huzzah 8266 so heres hopping we dont end up with 2 bricks 😎 .  I’ll keep fingers crossed for us both.


   
GoodOleBob
(@goodolebob)
Active Member
Joined: 3 years ago
Posts: 10
 

@byron

After installing the Arduino IDE for the ESP32, I see both esptool.exe and esptool.py in a folder.  Not feeling adventurous, I'll ask, "Do I need Python on my PC to run esptool.py or is the .exe file one which does the same thing?".

I hope this forum allows removal by the contributor of questions which expose my novice knowledge of flashing this chip.  I bought two ESP32 development boards under the assumption that I'll likely brick one.

 


   
b
 b
(@b)
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Posts: 912
 

@goodolebob

I’m to flash my board from my mac computer, so no exe for me, and my assumption is I have to install esptool into python.  I will probably have a go over the coming weekend and will let you know on progress.


   
b
 b
(@b)
Prominent Member
Joined: 3 years ago
Posts: 912
 

@mrcalm

Thanks for the info on the multicolour print unit and I think I will give the MMU2s unit a go.  The thought of producing things in several colours is very appealing indeed.


   
ItzKC
(@itzkc)
New Member
Joined: 3 years ago
Posts: 3
 

Hi, I am Kerry, from New Zealand. I am retired, and use a drone for my land based fishing.

I have used Arduino for various projects and currently looking at putting together a voltage measuring and readout for my lipo battery, giving the voltage of each cell, and possibly integrating this to the OSD system.

Any help would be appreciated.

 


   
Hotrod
(@hotrod)
New Member
Joined: 3 years ago
Posts: 2
 

Greetings Fellow Forum Members.  I am John from North Carolina, USA.  If you read my member profile, you will find my interests cover a wide range.

I am helping a friend build a large HO-scale model railroad: 20 feet by 30 feet with about 800 feet of track.  I have already designed and built several power supplies, track-polarity controllers, and track-routing controllers for the railroad.  My friend has requested a wayside-signal system.  The railroad has about 80 turnouts and over thirty blocks, each of which will require occupancy detectors.  I am using a circuit designed by Rob Paisley which uses current-sensing transformers to detect block occupancy.  (Just google “Rob Paisley” to find the website.)

Boolean algebra can compute the necessary signal aspects from the block-occupancy information and turnout positions, and from that I need to control over 300 LEDs in the signal arms.  This is where the Arduino comes in.  Sir Bill’s YouTube video about using 74HC-series shift registers to expand the input/output capability of the Arduino Uno really caught my attention.  I also was not aware that I could use the Uno to burn the bootloader onto a “raw” Atmel ATmega328P-PU.  Mouser Electronics has these Atmel/Microchip MCUs for $2.08 each (May, 2020), so several of these and a large handful of the shift registers will probably do what I need.

Several new members have been referred to Paul McWhorter’s tutorials, so that is my next step to further my understanding of C/C++ programming (I am too old to call it “code” or “sketches”, LOL).  I am familiar with machine language and assembly language, but I need to get up to speed with C/C++.

Now you know who I am and why I am here.  I look forward to learning more from the forum and the DroneBot Workshop channel on YouTube.

John (Hotrod)


   
codecage
(@codecage)
Noble Member Admin
Joined: 3 years ago
Posts: 1165
 
Posted by: @hotrod

I also was not aware that I could use the Uno to burn the bootloader onto a “raw” Atmel ATmega328P-PU. 

Just be sure you are getting the ones with the "P" after the 328 or you may have to jump through a few hoops otherwise.

I got down the road with some that were just 328-PU (no "P" after the 328) and while I finally got through those hoops and got things working it was a struggle. 😎 

SteveG


   
JoeLyddon
(@joelyddon)
Reputable Member
Joined: 3 years ago
Posts: 353
 

@hotrod

Hi Hotrod John!

Welcome aboard!

You are well on your way to getting educated on these nice little gems and having fun...  Real fun...  without all kinds of larger computers, etc. to mess with...

Enjoy!

 

Have Fun,
Joe Lyddon

www.woodworkstuff.net


   
JoeLyddon
(@joelyddon)
Reputable Member
Joined: 3 years ago
Posts: 353
 
Posted by: @itzkc

Hi, I am Kerry, from New Zealand. I am retired, and use a drone for my land based fishing.

I have used Arduino for various projects and currently looking at putting together a voltage measuring and readout for my lipo battery, giving the voltage of each cell, and possibly integrating this to the OSD system.

Any help would be appreciated.

 

Hi Kerry!

Welcome aboard!

Are you planning on using the Arduino to gather your voltage measurements... and passing the results to a screen display?  Is the lipo battery some distance away from the Arduino or real close?

I'd be interested in the way you're planning on doing it.

You say you're using a drone for land based fishing...  Does that mean actual "fishing" using fish line, hooks, etc. to catch fish?  🙂    If so, and you hook a Big One, will that be the end of your drone as it is pulled underwater?  🙂

 

 

Have Fun,
Joe Lyddon

www.woodworkstuff.net


   
Hotrod
(@hotrod)
New Member
Joined: 3 years ago
Posts: 2
 

@codecage

Thank you!  I will be sure to mind my "P" ha ha.


   
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