Hossmachine OB14 3D Printer

by Hossmachine, published

Hossmachine OB14 3D Printer by Hossmachine Feb 16, 2013



Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag


Thing Statistics

14582Views 9505Downloads Found in 3D Printers


This is a takeoff of Wired1's excellent OB1.4.
I call it the OB14 because it has a 14x14x14 build area.


This is still a work in progress, I'll post the BOM after it's complete.
See the progress videos here.

OB14 3D Printer Build Intro - http://www.youtube.com/watch?v=FBPLCTO7B58
OB14 3D Printer Assembly Part 1 - http://www.youtube.com/watch?v=4zA1xMi-Y28
OB14 3D Printer Assembly Part 2 - http://www.youtube.com/watch?v=FCl4_weuM9A
OB14 3D Printer Assembly Part 3 Y Carriage - http://www.youtube.com/watch?v=Wo42Zz2BKag
OB14 3D Printer X and Z Axis Endstops - http://www.youtube.com/watch?v=CllnjvoZfr4
OB14 3D Printer Z Leadscrew Supports and Heatbed - http://www.youtube.com/watch?v=H9hdEz-Ytmo
OB14 3D Printer LCD Y Axis 24V RAMPS - http://www.youtube.com/watch?v=nJSbFjQvRv0
Open Beam vs Misumi 15x15 Extrusions - http://www.youtube.com/watch?v=QBpKLzIx1mg
OB14 3D Printer 1st Movements - http://www.youtube.com/watch?v=L9FKbEx5PLw
OB14 Aux Fan - http://www.youtube.com/watch?v=hZtaXQ6pI0A
OB14 3D Printer First Print - http://www.youtube.com/watch?v=OLJjujV75xE
OB14 3D Printer Updates - http://www.youtube.com/watch?v=PuPjzVAD6Fc
OB14 3D Printer Big Prints - http://www.youtube.com/watch?v=J9gJpJNLWIg

15x15 extrusions
(6) 19 inches - base
(2) 20 inches - z risers
(1) 21.5 inches - z crossbar
(2) 17.5 inches - z angles
(2) 15 inches - spool rack risers
(2) 5 inches - spool rack braces


More from 3D Printers

view more

File Name



All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Is the open beam 20mmx20mm square?? And does anyone know where to buy this in Canada?


Have you completed the build and compiled the BOM, and or any instructions for your 3D printer? I would very much like to build one. We funded a small 3D Printer but will not receive it until Nov 2015 and we could use it to print the parts to build one like yours. I have download all the files from Thingiverse. I have no experience with 3D printing but have great computer skills and also machinery background with my own little machine shop many modifications came from you web sites. Any info you can provide will be greatly appreciated.

hi, i am been trying to print this file Y_carriage_belt_mount_and_trigger
few times with the print always shift after few layer of printing side way . try a cube print no problem try the part get print off set . check the printer for alignment , nothing wrong .
2nd cube test ok , try again same result few layer ok and the move the printing on the x axis ???? any idea ???

hi, can i use a 30mm extrude to build this printer.

Could you please send me the DXF files for some reason I can not open them.

Hey. I was wondering if you could answer some questions i have.

  1. What firmware are you using for the Arduino?
    2.My stepper motors wire are Blue,Green,Yellow,Red. Where do i connect the too? Like 2B 2A 1A 1B
  2. What files should i print from your files that are not on Wired1s page?

There is an easy way to find the motor wire pairs, just hold two bare leads together and spin the motor shaft. If they are a pair the motor shaft will be hard to turn.

I used marlin.
you'll have to check with the motor supplier, normal colors are red, blue, green, black for 2B 2A 1A 1B.
all of them if you want to copy it.

can you post the x carrier? the custom one you made.

all i did was drill thru the 2 holes in wired1's ob1.4 x carrier.

do you remember what the direct drive extruder you printed? you said in the first video that you printed it for a different or older printer.just wondering if it is a file on thingiverse?

i posted this link below for one that's very close.


3mm Direct Drive Extruder / Bowden Extruder

i would like to build one

could you please add a BOM for plastics so i know exactly how many pieces i have to print


Are you using a jhead hot end? If so, what size nozzle/filament and where did you source our hot end from? I'm getting clumping/clogging and am trying to track down the issue.

I've got the .35 version from Makerfarm, maybe I'll switch to the .5 to see if I can get that working better. Are you running 3mm or 1.75 filament?


3mm. I used to run a .35 nozzle and noticed it runs much better with a .5 now, extrudes much easier.

Good to know. I may switch if I continue to have problems with the bowden tube...the .5 would require less force, putting less pressure on the nuts at the end of the bowden tube.

Added a video showing the printer making parts that wouldn't fit on the old prusa.

Awesome job... nice touch with the control box too. !!

What kind of direct drive extruder do you installed?

Can't find the exact one anymore on here but this one is close.


3mm Direct Drive Extruder / Bowden Extruder

What are you using for smooth rods, hardened, stainless, etc?

the part#'s to http://mcmaster.commcmaster.com are farther down, it's precision ground hardened O1 toolsteel.

ah...found it. Any good source for the lm8's and 10's? Seems to be alot of variance out there and difficult to find a smooth bearing at a reasonable price.


Added stl's for a tall RAMPS fan mount and the Aux Fan parts.
Use M3 screws with washers and lock nuts for the aux fan.

Could we have the cutting lengths for the rails?

click read more in the instruction to see the extrusion lengths and there is a dxf in the download that has the dimensions for the round stock. the majority of the BOM is what wired1 lays out for the ob1.4 and you need his parts rto build the main frame, mine are just my additions to his great design.

This is nice, I hope the BOM is coming soon. This is one I would like to build,

Added pics and stl's for the angled ramps mount and the big switch box.

Tomorrow makes 5 weeks since I started the OB14 build and today we have first movements.

Plenty more still to calibrate and finish, have some perforated sheet metal to make a cover for the electronics.

nearly have the wiring done so this thing should come alive very soon.

Looking forward to seeing it working

Added a pic and stl for "base corner braces" to stiffen the frame

What motors are you using for this project? I did not see any reference to that information.

Thanks! Looking at your spool setup as well. That could be the next set of parts.

Thank you for the update Hoss. I am needing someone to do the plastic printing for the parts so I can build my 1st machine. So if anyone is interested in printing them for me I would surely compensate if the price is right.

I am looking for the same thing. Please message me.

Added the roundstock parts dxf for the leadscrew and rail dimensions

Posted a link for the new video OB14 3D Printer LCD Y Axis 24V RAMPS and added stl's for a better Y motor 50mm fan mount and the LCD mounts.

I'm waiting on a package won on ebay from reprapdiscount, new 24 volt ramps, 24v mk2 heatbed, GT2 belts and pulleys and Smart LCD.

How did you like the kit from reprapdiscount?

it's excellent, would definitely buy again

Good to know, thanks!

Thanks for all the helpful info and parts. I'm printing parts for Wired1's
printer and am using some of your parts as well.

I was looking at electronics...which box did you use for the smart LCD?

I used this one, the 3mm version.


this is nice too, like their reset button better but liked the access to the cables on the first one more.


Ramps Ultipanel Case (rrd Display)
by Chri
Case for RepRapDiscount Smart Controller
by wersy


I'm looking at your setup for the spools as well. Nice job!

uploaded a new y carriage lower.dxf with the holes for the belt mount slightly adjusted. A new video tomorrow will explain the need for it when installing the y motor and idler inside the frame and retain full travel.

Nice variant! I have ordered 10x1000mm openbeam lengths and plan on
using your design. I have the Smart LCD and love it, had a small issue
with the LCD pot being SUPER sensitive but it works. Looking forward to
more videos and updates :)

Thanks, you might want to cancel that order, I found some 15x15 extrusions similar to openbeam that cost $7.40 for a 2000mm length. Part # HFS3-1515 at http://us.misumi-ec.comus.misumi-ec.com

shipping was $19 for 15 pieces