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Recent Topics

LUBRICATION

by Ttlaser

IM STILL LEARNING BOUGHT A ALPHA AS MY SECOND PRINTER BUT WAS CURIOUS WHAT TO USE TO LUBRICATE THE SLIDES AND PIVOT ARMS.... SEEMS STUPID BUT I REALLY LIKE THE PRINTER AND DON'T WANT TO MESS IT UP

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Hatchbox hotends

by wesman732

Hatchbox hotends. I liked just replacing the whole unit so I could keep printing. Hatchbox has not had hotends for a long time. What are the exact specs for the heater cartridge and temperature sensor, and length of throat. their block is very tiny compared to others. what is that block called? I don't want to go to a more expensive brand. When it fails I want o swap it quickly. I really don't want to do PID tuning or flash the firmware. I make a volume of stuff with mine, its not a prototype to experiment with.

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Drag on one arm

by wesman732

I’m getting random shifted prints. I have one arm that has resistance and you can feel the rotation drag while the others arms have smooth motion. Lubrication has not fixed the problem. All hardware is tight. The is no filament wrapped up in the pulley. I would assume this is the stepper motor has an internal mechanical problem. Any other thoughts?

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Dual HotEnd modification

by mikekirby

I will be upgrading my Alpha to a dual HotEnd, e.g. https://e3d-online.com/chimera

I've already upgraded my Alpha with a second extruder and experimented with a multi-material merge using two extruders and a single hotend. I've decided using the merge isn't reliable for very long prints (eventually jams in the hotend from retraction strings), and adds significant time to the print for the tool change and HotEnd purge.

Has anyone attempted, have suggestions, or is interested in contributing to this modification?
Using the Chimera isn't a requirement.

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Marlin Firmware configuration for v1.1.8

by Masterkookus

Just letting everyone know that I have finished testing my configuration for Marlin firmware on small prints and am confident in publishing it, so I submitted the pull request, Had an issue with the upload to the site, but I just completed a 19 hour print with good results. Here it is for those interested.

Note: I do have it configured for an E3Dv6 hotend, so if you are running stock, change the thermistor value

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