Anycubic Kobra Go (Kobra)

Anycubic Kobra Go (Kobra)
Model	Anycubic Kobra Go
Sub-category	CNC
Status	Check the Tools Status Page
Last updated	2 September 2024 12:06:51
Consumables	1.75mm Filament
Accessories	Print removal knife
Training requirement	Yes
Training link	https://wiki.london.hackspace.org.uk/view/Anycubic_Kobra_Go__Training
ACnode	yes
Owner	Hackspace
Origin	Edtse88
Location	3D printer area, Ground floor
Maintainers	Edtse88

Kobra

Kobra is an Anycubic Kobra Go.

Bed slinger, bowden tubed (ie. non-direct drive) 3D printer. Main modification is the part cooling fan which has required modifying the toolhead slightly. It should not affect day to day usage and nozzle swapping.

Filament

Only use the provided filament. Note that the majority of the filament in the Hackspace is currently 2.85mm diameter and Kobra uses the more common standard of 1.75mm.

Kobra is best suited for the following materials:

• PLA
• PETG
• TPU

Always use the correct slicing profile for the filament material you are using. Different filaments have different melting and burning points, so getting the wrong material type can end up with a scorched mess, or a failure to extrude with a strained extruder motor. ABS is not recommended because it is not enclosed. If the printer is enclosed in the future, then ABS/ASA printing will be a lot easier, otherwise you will have bed adhesion issues.

please contact the maintainers if you wish to use a filament that is not available.

Glue stick should not be required with the texture PEI bed.

Bed Levelling

Note that Kobra is very picky about the bed levelling procedure. The build plate should be perfectly aligned front to back and side to side for the probe to properly detect the build plate. Otherwise the printhead will collide with the build plate.

The procedure to get proper bed levelling is to set the build plate properly and run the bed levelling procedure from the screen. Once it has saved the bed mesh, you can adjust the Z-offset which determines how high the printer will keep the nozzle above the print bed.

Cost

Using the printers costs £1.50/hour of printing + 50p/meter of filament. Octoprint gives you both of these.

Training

Training is required. There is a cost of £10 to be trained, payable to the trainer.

Logging

All prints are to be logged via Google form once it is updated.

Risk Assessment - 3D Printers

This risk assessment is intended to provide guidance on the risk associated with the above equipment and activities in normal use. Please also check general risk assessments for the space as a whole. Any discrepancies, errors or concerns should be raised with the document maintainers or trustees - do not edit this assessment directly. For responsible persons and last update, see 'version log' of the assessment page.

Activity

3D printing in plastic material

Signage

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Understanding Risk Rating

LOW - Ensure current control measures are in place and continue with activity

MED - Control measures may be adequate, co-supervision is recommended

HIGH - Do not undertake activity without further consultation with area specialists

Risk Assessment

Identify Hazards	Who May be Harmed and How	Severity	Control Measures	Likelihood	Risk Rating
Hot end and bed of 3D Printer	User – Minor Burns	LOW	Do not touch the printer components once printing has begun.  First aid kit provided.	LOW	LOW
Portable Appliance	User – Electrical shock	HIGH	Regular visual inspection schedule.  Regular Maintenance schedule. All printers remain permanently plugged into designated outlets.	LOW	MED
Portable Appliance	Premises – Fire Risk	HIGH	Regular visual inspection schedule.   Regular Maintenance schedule.	LOW	MED
Fumes	User – Respiratory difficulties	MED	When using Acetone, IPA or other adhesion or welding chemicals, wear appropriate PPE.  Keep area around printer clear when printing ABS.  Keep area well ventilated when printing ABS	LOW	LOW