Tag Archives: Mini Kossel

Dimensional calibration in Deltabot 3D Printer

The formula for dimensional calibration is new_diagonal_rod = measured_length / target_length * current_diagonal_rod Current diagonal rod is 232.26 in Bulbul Junior. I printed a test model whose dimension is 40.00×28.00×18.00 (mm). Actual measurement of the printed model was 40.80×28.85×18.20 (mm). … Continue reading

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Printed Colemak keyboard

Now I have a real Colemak keyboard.  How many years it has taken? I used the key cap generator. Parametric Cherry MX/Alps Keycap for Mechanical Keyboards http://www.thingiverse.com/thing:468651 I created a short module that creates a key cap per letter. Filament: … Continue reading

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Bulbul Junior 3D Printer -new belt tensioner

Previous version It was akward, looked ugly. To adjust belt tension of one axis, it requires to loose the vertex frame then turn the belt adjuster bolt. The problem is when the vertex frame is moves up, it affects alignment … Continue reading

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Bulbul Junior 3D Printer – Adalinda: The Singing Serpent

http://www.thingiverse.com/thing:246198 Filament: eSun PLA 1.75 mm Layer height: 0.2 mm First layer temperature: 210C Temperature of other layers: 200C Marlin firmware setting echo: Last Updated: Mar 22 2016 03:35:52 | Author: (RichCattell v1.0, Bulbul Junior v0.99, No LCD) Compiled: Mar … Continue reading

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Bulbul Junior has flying extruder.

Two pullys support the 480 g of counter weight. The extruder weights 427.6 g.  Geared Nema 17 motor really heavy. The flying extruder in action. I’m impressed by the printing quality. Retraction problem, fine hairy strings were almost gone. Layer … Continue reading

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Few comments about Mini Kossel

I want to discuss about one critical component that’s neglected by many builders. Qualtity and build precision of diagonal rod assembly dictates Mini Kossel’s printing quality and potential operational errors that would drag the user down. Six diagonal rod’s length … Continue reading

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Layer fan and a dummy object makes printing difficult models.

I opened an account on 3D Hubs as 3D Printing service provider. The first order I had to print the Marvin. It looked a simple model but I had to print over sixteen samples before I managed to print an … Continue reading

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Restart a print long after printing failure or stop.

https://groups.google.com/forum/#!searchin/deltabot/resume$20printing/deltabot/hHZ0AD5Ha1s/jTvc4-yH2T4J Yes, so the gcodes that got missing (you want to print again) will gave to be preceded with I.e. G28 ;home M106 ;fan on M109 S205 ;wait for temp 205 deg G92 Ewhatever ; set extrusion to last position … Continue reading

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First layer of the printing object is so critical.

I play in the ten micron (0.01 mm) world. I’m so close to finalize Bulbul Junior 3D Printer but apparently there is one issue I have to solve, which is the Z height changes after few printing session. I suspected … Continue reading

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Print bed mount

I designed bigger print bed mount to eliminate bed movement while printing and moving. The diameter of aluminium print bed is 180.00 mm. The diameter of circle that forms the sector of print bed is 180.20 mm. Aluminium extrusion: 20.00 … Continue reading

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