Firstly, thanks very much for your order and we sincerely apologize for the inconvenience caused by our ordering system!

The fact is:

We have various discount based on various order quantity, meanwhile, the shipping cost also varies a lot in different methods(by sea, by air-DHL,UPS,Fedex, EMS & China post etc. .

In this case, we prefer to contact customers via email by offering different choices and let them make final decision.However,we realize this is too confusing for customers, and we will improve our ordering system as soon as we can .

By the way , we have sent you invoice about your order ( 888070 ) via email , pls check it , thank you .

Any questions , pls feel free to contact us , we will try our best to help you .

Sorry again for all the errors & inconvenience caused to you!

Sincerely hope to hear from you soon . Tks . 

Best Regards

Cathy Zhan

===========================================

CHINA BEST TECHNOLOGY LTD.
Unit 1301, 13/Floor, Chung Nam Building,1 Lockhardt Road, Wanchai, Hong Kong
Email : filament@china-best-technology.com

===========================================

it smell not good....

Do you want to get qualified filaments?

This is CHINA BEST TECHNOLOGY LTD. located in HK, spcializing in top-ranking filaments. Our project team is built by engineers from Germany and China.

Advantages of our filaments :

1. Reliable quality: With strict in line quality testing approval by laser & automatic systems.

2. Safe and immediate delivery: Our warehouses in different countries will make sure goods reach your local place within 7 days .

3. Competitive price: CIF Price USD 11-35/kg depending on different markets and quantity.

Pls visit our website 3d-printer-filament.com  to apply for up to 45% off discount samples for testing!!!

Many professionals and home users already became our partners, returning to us with good feedback. Pls contact us if you have interest in trying our products.

Best regards
Cathy Zhan
===========================================
CHINA BEST TECHNOLOGY LTD.
filament@china-best-technology.com

I'm actually more interested in the mod as paving the way for dual extrusion.  If the motors can be moved outside, then the hot ends might be moved close enough together that there wouldn't be too much build area lost in the X direction.

I will say this of dual extrusion:
While we haven't modded a Solidoodle to do this yet, we have not been impressed with the results we have seen so far. Personally, I'd rather have a one nozzle set up that can switch filament mid print.

I'm actually more interested in the mod as paving the way for dual extrusion.  If the motors can be moved outside, then the hot ends might be moved close enough together that there wouldn't be too much build area lost in the X direction.

I want dual extrusion so one could be soluable support and one could be ABS, then you could print anything you want and dissolve away the support instead of picking at it.  Then there is no impossible print.

Adding a Bowden cable like the Ultimaker uses would certainly be an interesting mod, especially combined with the high speed printing you can do with the current Marlin.  That would make it an "Ultidoodle".  The build instructions for the Ultimaker are online, you could study those for some insight on how to incorporate the tube.  It adds some complexity, and I've read that oozing is a problem.  Retraction isn't as easy when there is a long length of filament between the extruder and hot end.

Ultimaker is quite proud of their print speed, I'm not sure if it's Solidoodle's top concern at the moment. I wouldn't mind seeing the mod either.

I'm not sure if the motor for the extruder needs a particular specification beyond the size.  I would need some sort of adapter, or long screw shafts to mount the acrylic since it doesn't have holes to line up with the gearbox.  I would also need to make a mount to place the fan and heatsink on top of the motor rather than behind.

Have you seen the 3d printers where the extruder motor is mounted to the body of the printer and the line fed through a flexible tube to the extruder?

That might work in this case, and it should give the head a little less weight, which should allow you to speed up printing too.

I'm not sure if the motor for the extruder needs a particular specification beyond the size.  I would need some sort of adapter, or long screw shafts to mount the acrylic since it doesn't have holes to line up with the gearbox.  I would also need to make a mount to place the fan and heatsink on top of the motor rather than behind.

The moire pattern you see on the straight sides of prints is caused by a slight pulsing of the extrusion as the motor stops between steps.  With a gearbox, the motor will need to spin faster, so instead of something like 110 steps per mm, it would take 1100 steps/mm which would completely smooth out the motion of the extruder gear.

Here is my review of the clear - http://solidoodletips.wordpress.com/201 … -filament/

The reviews you linked to were for 3mm PLA, both probably from Esun.  I don't know if they are the only manufacturer in China.  I have printed a full roll of red 1.75 ABS from 3D Printer Stuff and half a spool of white from Octave, which are also Chinese filament, but I don't know if they are also from Esun.  I haven't had any problem with those, or seen any bulges, bubbles, or signs of contaminants.

The clear ABS may be from a different supplier, or the process may be different.  I've written to Repraper about the bubbles and specks in the clear, but haven't heard back.

Are you going to vapor bathe that cup to see how it looks smooth?

The reviews you linked to were for 3mm PLA, both probably from Esun.  I don't know if they are the only manufacturer in China.  I have printed a full roll of red 1.75 ABS from 3D Printer Stuff and half a spool of white from Octave, which are also Chinese filament, but I don't know if they are also from Esun.  I haven't had any problem with those, or seen any bulges, bubbles, or signs of contaminants.

The clear ABS may be from a different supplier, or the process may be different.  I've written to Repraper about the bubbles and specks in the clear, but haven't heard back.

Am I missing something? Are they getting good reviews elsewhere?