Amazon BFB-3000 User Manual download pdf (Page 57)

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BFB 3000 Operations manual

Fine tuning your print

Ovality

When printing a round object is it round or very slightly oval? You may need to run

a large circular object to be sure of this. If there is any ovality it will be aligned with

either the X or Y axis. Take the small diameter and note the axis that is running

undersized. Check the belt tension on that axis, also check all the pulleys are

tight.

The photo shows good prints top and bottom, left and right are slightly oval.

Material Feed fault

This otherwise good print was spoilt by the material feed, the plastic reel was too stiff

on its axle, the extra drag was too much for the extruder and it slipped a few times

during build.

Examining the printed object

Have a good look at the finished object. The mini-mug is a good sample item to print, it is quite strong, it should be very

hard to break it. If it does fracture along the layers then try a slightly higher temperature. Are the sides of the mug good

quality, with no hanging filaments on the outside, it may have slight imperfections due to Z moves. Inside will have a few

hairs, this is normal. The mini-mug is a good starting point, but it will not allow the fine tuning required to run off some of the

more demanding objects, for now, try a series of mini-mugs, play with the settings and observe the results, you will soon

start to get a feel for the machine and how the material behaves. Continue until you can reliably produce a good mug.

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Amazon BFB-3000 User Manual Page 57