Christmas maze & J-head mod

Trying to get into the Chrismas spirit.....preparing for the first actual print.... 

- A (symbolic) tree -

Download STL HERE

Pronterface accepts the STL now.

Some small issues left to solve and fix:

1-st install the "Hyena" for optimal bite

_{(For reference bottom pic the current filament "gear" which does not work that well)}

Original on the J-head only a tiny hole was provided to mount the sensor....

Could not imagine and find the thoughts behind that.

A dependable fix for the sensor has been achieved with the above solution.

Clamped and glued with heat suitable silicone keeps the sensor in position.

The final dependability finds itself often in the detail.....

-chris-

Zoltrbot - moving!

In the end a stepstick change and and some rewiring made it work....
The Marlin & Arduino software has a steep learning curve for me.
There are many settings possible.
This means a lot more exploring on this matter for me.
A whole new Adventure!

At least the mechanics does behave very nice to rapid changes,
no backlash so that seems sorted so-far.

Now next to do is the need tidying it up,
connect the display and cardreader
and make it ready for the further calibration & first trialprints.

Hoping now for printed Christmas tree decorations.....

-chris-

Final touch- Zoltrbot- 3D printer....

No prints yet,...
Using the printer later-on itself, the covers on the Y-Axis sides
and cover of the reduction on the backside can be printed.

Just to dress it up a little and make it a cleaner design.
Also these items shields the moving parts and makes the machine safer.

So form follows function!

Doesn't look like a prototype anymore now.... ;-)

Zoltar 2012-NC is Alive and Cutting !

 

 

 

A unique all Stainless steel structure,  

ballscrew driven CNC machine toolkit

> under 1000 € to be build <

 

Check it out now:

http://www.zoltar-cnc.nl/forum/index.php?board=17.0

 

Short movie cutting ALU for trial:

http://www.zoltar-cnc.nl/media/forum/2012NC%20alutrial.wmv

 

 

 

Assemby Y axis - Zoltrbot

 

Another small step ahead......

Temporarely mounted the Y-8mm shaft(not hardened),

Just checking if the holes do allign and Y-cariage fits.

Exploring also the right position for the filament feeder......

Mount on the end of Y -axis (in CAD figured out) gives a tight

loop in the PTFE tubing when the printerhead is moved near the feeder.

The tight bend is prob not very helpfull for

a constant propulsion of the filament.

 

Next install the drive mechanics and finish this prototype setup.

 

More info's & other CNC-projects:

http://www.zoltar-cnc.nl/forum/index.php

http://www.zoltar-cnc.nl/forum/index.php?topic=25.0

 

-chris-

Progress on Zoltrbot.....

 

 Some structural progress has been made

               over the last weeks ...

 

  

     and the basis X -axis is now working...

 

 

Not as fast as I was aiming at or hoping for,

but about 9-10 M/minute is no problem and very useable.

The accuracy with its reduction is more then sufficient.

Measuring with a digital caliper its repetition accuracy 

I get about 0,05mm or better.

Using a measuring clock should provide more

details on that lateron.

 

  Looking good sofar!

 

  Here a short video:

 

  

          Zoltrbot - testrun X Videolink ~3Mb

   The testcycle does contain 200mm lines - 10 M/minute

 

The Bridge -Y axis parts will be cut and buildup next.

As it has the same mechanism as X,

it will have a similar running behaviour.

 

Now figuring out the position & mount for the filament propulsion.

Best position would be on one end of the bridge

 

     

 

Sofar the journey into this 3d-printing adventure!

 

 

Design process done - fabbing & assembly started....