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Remix of your printer #4

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Protarios
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Hi, I am currently working on a updated version of your really great printer design with small improvements, such as countersunk screws and a more complete CAD model.

Maybe you are interested.

Kind Regards,
Peter

Protarios added 7 commits October 5, 2015 19:22
Initial Commit
be78d99 
First upload of my changes to the system of jand1122 to Github
New Assembly
15392da 
Changed Folder Structure
Changed too large distancer in Right Motor
New Assembly with all parts, without constraints
Folders restructured
13181dd 
Folders restructured for better overview and removal of duplicates
Printhead
dd8bdd0 
E3D Printhead added
Belt Path optimised
678a27b 
Moved Bearings of Motor Holders and Idlers 3mm towards Middle
Travel increased
26a681b 
Started adding E3D Kraken Printhead. Increased travel in y-Direction
for utilizing full printbed size with all four kraken nozzles.
Parametric Cable Chain
7d1fcfc 
Added First Version of Parametric Cable Chain
@g2david
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g2david commented Oct 19, 2015

Hi,

I have printed the RepRapXY and shrink to printable area 100mmx110mmx150mm

Have some issues on new design . Also some improvements may need to do.

  1. The Z AXIS is the most troublesome to setup nicely. I created a replacement for new Leadscrew T8 one in order to fix it.
  2. The Z AXIS setup: Two 12mm need to be vertically aligned. Three components are very hard to be aligned.
  3. The XY Block, the 8mm smooth bar will move inside after one print. Also, they are not tighted.
  4. The belt clip wastes lot of spaces and hard to change.
  5. The idle left right are very hard to adjust. Those 8mm holes requires exact length of smooth rod and do not have tolerances. Hard for me. Many vendors cut it not really good.
  6. The XY motor blocks are too large. If it can move outside of the frame to gain more printable space for a small printer. I have 250x250x250mm 2020 frame. I end up 100x110x150 printable area

Nice things on this printer:

  1. XY is very precise and no wobble. Stop instantly without shaking
  2. The X-carriage. Two holes are bowden compatible. I can remix a lot of extruder mount and hot-end mount. Currently, I have E3d V6 and Wade's extruder, Servo and prozmity sensor probe sticks
    http://www.thingiverse.com/thing:1046158
  3. Print quality is good.

New improvement thoughts:

  1. Change the X- Carriage to vertical. I am drawing an add-on. Top and bottom 45mm wide. But I have not figured out how to create a belt clip for XY., The 45mm is compatible with RepRap common design, so that I can buy a lot of parts. The head is easier to change. However, the original X-Crriage should perform better. I am afraid to destroy the current fine -tuned XY.
  2. The XY Blocks. It took a lot of time to fish the belt out of the blocks. :'0
  3. The XY blocks can be shrinked. like this design to make it smaller
    http://blog.fabtotum.com/blog/2014/04/04/belts-and-stuff-experiences-to-share/

Just my two cents

Cheers,
David

@g2david
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g2david commented Oct 19, 2015

Forget.

X,Y, needs endstop.

Starting y-Axis
8662508 
Started adding y-Axis.
Added first 2 of 3 lead screws.
@jand1122
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Owner

Hi Peter,

First of all thanks for your interest in the printer. I want to have a look
at your changes. I am not familiar enough with github to know exactly what
to do.
May be just download a zip from your repository for now?

best regards,
Jan

2015-10-18 18:13 GMT+02:00 Protarios [email protected]:

Hi, I am currently working on a updated version of your really great
printer design with small improvements, such as countersunk screws and a
more complete CAD model.

Maybe you are interested.

Kind Regards,

Peter

You can view, comment on, or merge this pull request online at:

#4
Commit Summary

  • Initial Commit
  • New Assembly
  • Folders restructured
  • Printhead
  • Belt Path optimised
  • Travel increased
  • Parametric Cable Chain

File Changes

Patch Links:

—
Reply to this email directly or view it on GitHub
#4.

@Protarios
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Author

Sure, download a zip.

The Core(XY).FCStd is the Assembly.

The Printer is not finished yet, I currently am working on the z-Axis.
My Goal is, to have a really complete model and BOM with all parts and where they are available.

I really love your design, especially for the xy-axis! I is the perfect starting point for what I want to build in the end.

Peter

Am 20.10.2015 um 21:38 schrieb jand1122 [email protected]:

Hi Peter,

First of all thanks for your interest in the printer. I want to have a look
at your changes. I am not familiar enough with github to know exactly what
to do.
May be just download a zip from your repository for now?

best regards,
Jan

2015-10-18 18:13 GMT+02:00 Protarios [email protected]:

Hi, I am currently working on a updated version of your really great
printer design with small improvements, such as countersunk screws and a
more complete CAD model.

Maybe you are interested.

Kind Regards,

Peter

You can view, comment on, or merge this pull request online at:

#4
Commit Summary

  • Initial Commit
  • New Assembly
  • Folders restructured
  • Printhead
  • Belt Path optimised
  • Travel increased
  • Parametric Cable Chain

File Changes

Patch Links:

—
Reply to this email directly or view it on GitHub
#4.

—
Reply to this email directly or view it on GitHub #4 (comment).

Changed mounting of XY-Slide
41e5faa 
XY-Slide Bottom mounted instead of top mounted to allow for improved
mounting.
XY mounting hole has to be changed.
@Protarios
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Author

Hi G2David.
Thanks for your comments, they will help a lot!
If you printed the version I changed, sorry about the tolerances and smooth bar fixing. This is not done yet, I first want to finish the overall design and then move on towards tolerances, and improvements.

I think I try to get the printable size up. A problem about most greater size printbeds I found though, is that they have large uneven balance of forces due to that, as the move parts to different levels, what leads to really huge bending forces. If you do that you need to swap from printed plastic parts to machined metal.

I also do not want to move the motors outside, as in my opinion, it is the same size in the end the printer needs on a desc, and I want a fully enclosed system, but I will think about solutions.
I myself need some area outside of the printable area, as I will will the printer with an e3d kraken, and all the watercooling tubes can't have too low bending radiuses, so the area of movement is also restricted by that.

To the z-Axis. Maybe you have some good ideas here. I want to integrate a 3 point fixation. I know that it is quite cumbersome to assemble, but I have bad experience with other z-axis assemblies.
The leadscrews tend to be slightly bend and that imposes quite huge xy-forced to the print platform, leading to wobbles in the final print. But maybe there are better solutions for that.

Protarios added 7 commits October 24, 2015 20:47
Motor Top Mount
dabc42b 
Repaired, Motor Mounts, XY-Slides and Idler Blocks for reversed mount
of motors
z-Axis beams pt. 3
7bfbcc3 
Third screw and beam for z-Axis added.
z-Axis Belt
e5e03db 
Belt added
New Input Project & Bugfixes
3d48e3d 
Added Iteration 2 for future vertical carriage mount + Bugfix of
carriages
Screws Replaced
28586a5 
Replaced all screws with Fasteners Benchmark Version
Prusa Hephestos Parts
66a6a7b 
Copied Parts of Prusa Hephestos and start of repair of XY-System
Assembly2 Paths
cb49866 
Repaired all Assembly2 Parts for Parts Updating
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3 participants
@Protarios @g2david @jand1122