[4]

Prusa i3 Mk 3

[3]
[10] Like what you see?
Click here to donate to this forum and upgrade your account!

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#1
Has arrived after a slow jaunt through continental Europe. Let the fun commence! :cool:
A6646D20-9E1E-418B-B12B-6B7095F59218.jpeg
FA7B5D75-5B80-4CA9-B5F5-C97BD693D778.jpeg
 

brino

Active User
H-M Supporter - Gold Member ($25)
Joined
Jan 2, 2014
Messages
3,459
Likes
3,486
#2
Congratulations!

Are you going to document the assembly?
Even just a short write-up about how easily (or not) it goes together, and some info about your first prints would be very useful.

Thanks,
-brino
 

brav65

Active User
H-M Supporter - Gold Member ($25)
Joined
Sep 24, 2014
Messages
925
Likes
494
#3
Congratulations! I just bought the TEVO Tornado, it arrives tomorrow, looking forward to see what your experience is.
 

RVJimD

Active User
Registered
Joined
Dec 30, 2014
Messages
259
Likes
110
#4
I had a mk3 kit ordered back in March but got frustrated with the delays and cancelled that and now I have two monoprice printers. One select plus and one mini! I have really been using both and I love to see a fusion 360 design come to life on the printer! Jim
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#5
Pics from tonight’s assembly session.

Frame assembled.
8602C44B-AFAA-457A-B3E2-48DEDDA12D9C.jpeg


Y-Axis assembled and installed:
AC4D333A-4285-4355-A236-9484839BCB86.jpeg


Then the X-Axis along with the Z-axis lift motors and screws:
F8765AD5-F725-4943-970F-53B6B72406F7.jpeg


The extruder built and attached to the X-Axis. This took the bulk of the build time tonight, as there a lot of parts to put together, and cables to route.
25FD9726-EF37-43AD-BFA2-53B389972A0A.jpeg
BD8962BC-6228-4447-B057-B64B98A73F62.jpeg


Cable management on the rear of the extruder.
A6BCC265-008C-414A-B1A3-A874683FB3FF.jpeg


So far, the build has been a breeze, apart from some fiddly bits where M3 nuts have to be pressed into some deep holes. And the instruction book is amazing, you get a full colour printed book, and it’s in English, not some facsimile of the language. :)

Here’s the electronic version if you’re intersected.
https://manual.prusa3d.com/c/Original_Prusa_i3_MK3_kit_assembly

Tommorow I’m onto the electronics and power.
 

brino

Active User
H-M Supporter - Gold Member ($25)
Joined
Jan 2, 2014
Messages
3,459
Likes
3,486
#6

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#7
LCD and bed attached:
F89CF785-A7DD-4F8B-B2B8-5067E0C411DF.jpeg
AEB84325-4F61-4FD4-8FE0-902EAD693A22.jpeg


Electronics enclosure and main board
0558431D-166B-4797-8773-F7F40A98AED9.jpeg


PSU - where it’s attached allows it to double up as a brace dor the frame:
B0198142-B2EE-4E32-AC25-5449704C0FF3.jpeg


Cable management:
7235B75C-CB54-4A43-86C1-E2FB8D5E7646.jpeg
FED53D47-493F-4237-ADA1-CDCF24E9F772.jpeg


Wiring connected up to the main board.
D8A75376-34EA-46ED-914C-5522353FAF4C.jpeg
7FE2867E-22F0-43DE-84B4-ECA1F4CA07E2.jpeg
CF085F1A-47A4-4526-8096-767CC1F3ADF9.jpeg


Complete!
C326CF58-E44A-4635-817A-9F19B9EBF5F5.jpeg
8B440E15-993E-476F-B71D-D9E321D66900.jpeg
4AC22044-3E01-44B8-AF13-3751F0B562C5.jpeg


First print.
EA071E03-6554-4848-89F3-0CBD0A4A3BFF.jpeg

00FF0375-6B2B-4199-A871-752DC05C9DA5.jpeg
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#9
Ok, so I tried to print out a benchy as it’s what all the cool kids do. This is what I got:

C966D797-E1A5-4A3D-9FB2-0F8B61A8246B.jpeg
AE76D651-46B2-44C6-BD26-673630708987.jpeg
55251925-FB73-4665-BA31-88BD041CA2BA.jpeg

Not the best of results! :/

A quick call for help on the Prusa Facebook page, and I got a diagnosis - the belt pulleys where loose. This from several new friends - and - Jo Prusa himself!

After making the suggested tweaks (tighten the grub screws on X&Y axis, check the extruder filament tension, double check the initial layer height), here’s the result - ahoy there mateys!

541DE733-E307-461B-AEBF-B31F04478202.jpeg
B44E7236-595A-4F41-B3FC-FB7BC754FB72.jpeg
541DE733-E307-461B-AEBF-B31F04478202.jpeg
0F008518-ADE0-4C7F-B5DD-FC12C28FA762.jpeg


I’m blown away by the quality of the print, and the level of support.
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#10
My first “paying” gig... :p

These are some fasteners I designed for my friend, who in his spare time is the boatman at the local rowing club. He wanted some nuts making up to hold things in the racing boats (I forget what it’s for, but these are the same sort of 4 or 8 man boats you see at the Olympics and the Oxford V Cambridge race on the Thames). The crews have a tendency to do things up too tight, stripping fittings out the fragile boat shells and causing lots of grief and costs to the club. These are can only be done up by hand, and if they try and wail on them the nut will strip out of the plastic before it does any damage to the boat.

I’ve had the fusion 360 files sat on my laptop for ages, as I couldn’t get them to reliably print on my old delta printer. The MK3 romped through them.

1F5609C0-843A-4821-990E-6BCA4EDD7650.jpeg
21CE0290-76E7-425B-9902-C5CF44A451A6.jpeg
A6FE6367-12BC-49A6-B036-5254C539C466.jpeg
317565FC-A297-437D-8910-8B8B2E774D4F.jpeg


They’re M6 nuts pressed into the bottom, and the text reads “HAND TIGHT ONLY”, just so the crews don’t forget. ;)
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#11

So yeah, I’m now realising that the build is never over. Tinkering is habit forming, upgrades ahoy! :cool:
 

Dave Paine

Brass
Registered
Joined
May 10, 2014
Messages
813
Likes
598
#12
The fasteners look good. So many ways to upgrade a many 3D printers......
 

The_Apprentice

H-M Supporter - Gold Member
Staff member
H-M Supporter - Gold Member ($25)
Joined
Jun 14, 2017
Messages
248
Likes
127
#14
Been keeping an eye on it myself. But I'll wait a few more months :p
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#15
I've swapped out my security cams at home, and the base of the old ones where bigger than the new ones. And I didn't feel like filling holes and painting... So from problem to solution, about 2 hours. :D

Modeled in F360:
IMG_4404.JPG


Exported, sliced and printed in black PETG - same dimensions and fixing locations as the old mount:
IMG_5360.JPG


Recess takes a steel plate that came with the camera, fixed with VHB tape:
IMG_4086.JPG


New camera has magnet built into the base, so it sticks to the plate:
IMG_7987.JPG


And in place and on line:
IMG_1538.JPG


Result! :cool:
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#16
I've now got my printer enclosure built, and the printer relocated up in my study rather than on the dining table.
PrinterEnclosure.jpg
PrinterSpool.jpg
PrinterPSU.jpg
PrinterLights.jpg
PrinterCamera.jpg


3 Ikea LACK tables, some printed parts and some perspex and you get a very handy printing station. :D

First print in the new home:
 

Frank O

Newbie
Registered
Joined
Feb 14, 2017
Messages
6
Likes
2
#17
Great work with your MK3. I ordered a kit that arrived in late January, but due to major, unexpected changes to my schedule I didn't get the build completed until this week. Was happy to see that, after a couple of relatively minor tweaks (tightening a belt, adjusting height of the sensor on the extruder) I'm getting clean prints. Now my only issue is that I've managed to forget everything I learned about Fusion 360 over the past few months. So some major resharpening is in order there.
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#18
More 3D printing fun - this time an ink stamp for my Aunt's crafting hobby:

 
Joined
Jan 13, 2018
Messages
2
Likes
0
#19
For the printer enclosure you built--is that functional or aesthetic? I was just wondering about it the heat generation in the box if that would make taller parts sag, or if by maintaining the build area a little warmer you would get more even/slow cooling and hardening of the part? Looks good though, answers the question of where to store the darn things when you aren't using them. That second print of the boat came out great! I can barely see any layers.
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#20
It’s functional... certain plastics really don’t do well with drafts and stuff causing diffent cooling rates of the part. This causes warping and possible printer crashes as the head hits a corner or other feature that has lifted.

I need to modify it though, as the MMU unit needs a little more headroom inside for it to fit nicely and for access to it.
 

jwmelvin

Active Member
Registered
Joined
Jan 11, 2018
Messages
120
Likes
85
#21
Have you tried PETG? It’s pretty great in that it doesn’t warp like ABS but has better toughness and heat tolerance than PLA. I like it (using an i3 mk2S)
 

FLguy

H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Joined
Jan 11, 2016
Messages
253
Likes
140
#22
I'd like to see 3D printing group here. I have a Flying Bear Ghost... well built unit.
 

FLguy

H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Joined
Jan 11, 2016
Messages
253
Likes
140
#23
Oh Oh, not paying attention again. Guess I need to look around a little before I say something.
 

GreatOldOne

#SaveTheExpanse
H-M Supporter - Gold Member ($25)
Joined
Mar 20, 2014
Messages
143
Likes
454
#24
Have you tried PETG? It’s pretty great in that it doesn’t warp like ABS but has better toughness and heat tolerance than PLA. I like it (using an i3 mk2S)
Yep. All of my enclosure parts where printed in Black PETG.
 
[6]
[5] [7]
Top