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First printed little stars.

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This acrylic frame Geeetech I3 3D printer is designed and manufactured by Shenzhen Getech Co., Ltd based on Reprap pursa I3, Geeetech I3 features simple assembly, easy debugging and more stable performance. The acrylic structure makes the printer less complex and easy to operate.

For more information, please kindly check at this link:

Here is the very first objects printed with my new Repstrap, and that allowed me to make the biggest adjustments.

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Trying to print a pulley for the drawing machine.


A single tooth is less than 1mm thick.

Parts used - Rough List


- Frame - Jo Průša

- Rods - Matterfy

- Steppers - Ultimachine

- Rambo - Ultimachine

- Misc hardware / bearings - Ultimachine

- Printed parts: self-printed (Yellow PLA - Extruder is yellow ABS)

- Power suppy: Lulzbot

- Heated Bed Glass: Lulzbot

- Heated Build Platform: eBay - rp_one labs

- J-Head MKV: eBay - reprap_uk or something

- Fan: Ultimachine

- Belts: Lulzbot

- Stepper gears: eBay

Does this look like a perfect fit?

Yes, ahoy it does.

Open hardware logo with Slic3r generated infill pattern (thats how objects inside looks when printed on RepRap) on my right forearm. Reminder for me not to be hypocrite after starting my own RepRap company. Reminder what got me where I am today!

after about 12 tries I finally was able to print a timing pulley with a 2mm pitch

Finally got this running sweetly. Three problems:

1. Loose drive sprockets. Fixed with allen key.

2. Wrong skeinforge profile. Fixed by copying them from the github repo and manually clearing out the .skeinforge folder and putting them in.

3. Wandering filament in the extruder drive - it kept on being squeezed out of the hobbed area on the drive bolt. Fixed by printing a special little shim to drop into the extruder chamber to keep the filament in place. Unsubtle, but it works.

Description Specification: Voltage: 12v Power: 30w Material: Stainless Steel Diameter: 6mm Length: 20mm Wire Length :1m Shipping Included: 1PCS*Cartridge Heater Recommended Products Payment We accept PayPal only. But we only Accept your Ebay Address,Please Make sure it’s 100% right....

This print had several problems. I switched from a 0.5mm nozzle to a 0.25mm nozzle, the 0.25mm nozzle was much more difficult to calibrate. This weird hole/window problem was caused by several things, too low of a temperature, too few perimeter passes, and a imperfect calibrated extrusion. Things I did to fix it: increased temperature from 230 to 245. Increased perimeter passes from 1 to 2. Changed the extrusion multiplier from 1 to 1.05. It took two days to figure out all those changes, but now Yoda prints nearly perfect.

Left - no fan. Right - with fan. Conclusion: fan is essential for small/fast prints.

Pop can for scale. About 60 hours to print.


#220 on Flickr Explore on Feb 6, 2012!


Update: Brad has named it "Tantillus" (latin for "so little, so small")

Two links of a cable chain. The half bridges looks awful, will probably try with solid bridges instead.

Trying to print a pulley for the drawing machine.

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