{"id":282,"date":"2022-09-02T18:45:27","date_gmt":"2022-09-02T10:45:27","guid":{"rendered":"http:\/\/demo.namu66.com\/tronhoo3d\/?p=282"},"modified":"2022-09-02T18:45:27","modified_gmt":"2022-09-02T10:45:27","slug":"fdm-inconsistent-extrusion","status":"publish","type":"post","link":"http:\/\/demo.namu66.com\/tronhoo3d\/282.html","title":{"rendered":"FDM — Inconsistent extrusion"},"content":{"rendered":"\n

<\/a>What\u2019s the issue?<\/p>\n\n\n\n

Good printing requires continuous extrusion of filament, especially for accurate parts. If the extrusion varies, it will\u00a0affect the final print quality such as irregular surfaces.\u00a0<\/p>\n\n\n\n

<\/a>Possible causes<\/p>\n\n\n\n

—Filament Stuck or Tangled<\/p>\n\n\n\n

—Nozzle Jammed<\/p>\n\n\n\n

—Grinding Filament<\/p>\n\n\n\n

—Incorrect Software Setting<\/p>\n\n\n\n

—Old or Cheap Filament<\/p>\n\n\n\n

—Extruder Issues<\/p>\n\n\n\n

Troubleshooting tips<\/p>\n\n\n\n

—Filament Stuck or Tangled<\/p>\n\n\n\n

The filament should go through a long way from the spool to the nozzle, such as the extruder and the feeding tube. If the filament is stuck or tangled, extrusion will become inconsistent.<\/p>\n\n\n\n

Untangle the filament<\/p>\n\n\n\n

Check if the filament is stuck or tangled, and make sure the spool is able to rotate freely so that the filament is easily unwound from the spool without too much resistance.<\/p>\n\n\n\n

Use neat wound filament<\/p>\n\n\n\n

If the filament is wound neatly to the spool, it is able to unwind easily and less likely to be tangled.<\/p>\n\n\n\n

Check the feeding tube<\/p>\n\n\n\n

For Bowden drive printers, the filament should be routed through a feeding tube. Check to make sure that the filament can easily move through the tube without too much resistance. If there is too much resistance in the tube, try cleaning the tube or applying some lubrication. Also, check if the diameter of the tube is suitable for the filament. Too big or too small can lead to bad printing results.<\/p>\n\n\n\n

—Nozzle jammed<\/p>\n\n\n\n

If the nozzle is partly jammed, the filament will not be able to extrude smoothly and become inconsistent.<\/p>\n\n\n\n

Go to\u00a0the nozzle jammed<\/a>\u00a0section for more details on troubleshooting this issue.<\/p>\n\n\n\n

—Grinding Filament<\/p>\n\n\n\n

The extruder uses a driving gear to feed the filament. However, the gear is hard to grab onto the grinding filament, so the\u00a0filament is hard to extrude consistently.<\/p>\n\n\n\n

Go to\u00a0the Grinding Filament<\/a>\u00a0section for more details on troubleshooting this issue.<\/p>\n\n\n\n

—Incorrect Software Setting<\/p>\n\n\n\n

The settings of the slicing\u00a0software control the extruder and nozzle. If the setting is not appropriate, it will affect the print quality.<\/p>\n\n\n\n

Layer height setting<\/p>\n\n\n\n

If the layer height is set too small, for example, 0.01mm. Then there is very little room for the filament to come out from the nozzle and the extrusion will become inconsistent. Try setting a suitable height such as 0.1mm to see if the problem goes away.\u00a0<\/p>\n\n\n\n

Extrusion width setting<\/p>\n\n\n\n

If the extrusion width setting is far below the nozzle diameter, for example, a 0.2mm extrusion width for a 0.4mm nozzle, then the extruder won\u2019t be able to push a consistent flow of filament. As a general rule of thumb, the extrusion width should be within 100-150% of the nozzle diameter.<\/p>\n\n\n\n

—Old or Cheap Filament<\/p>\n\n\n\n

The old filament may absorb moisture from the air or degrade over time. This will cause the print quality to degrade. The low-quality filament may contain extra additives that impact the consistency of the filament.<\/p>\n\n\n\n

Change new filament<\/p>\n\n\n\n

If the problem happens when using old or cheap filament, try a spool of new and high-quality filament to see if the problem goes away.<\/p>\n\n\n\n

—Extruder Issues<\/p>\n\n\n\n

Extruder issues can directly cause inconsistent extrusion. If the drive gear of the extruder is not able to grab the filament hard enough, the filament may slip and not move as supposed.<\/p>\n\n\n\n

Adjust extruder tension<\/p>\n\n\n\n

Check if the extruder tensioner is too loose and adjust the tensioner to make sure the drive gear is grabbing hard enough the filament.<\/p>\n\n\n\n

Check drive gear<\/p>\n\n\n\n

If it is due to the wear of the drive gear that the filament cannot be grabbed well, change to a new drive gear.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"Good printing requires continuous extrusion of filament, especially for accurate parts. If the extrusion varies, it will\u00a0affect the final print quality such as irregular surfaces.\u00a0","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"acf":[],"_links":{"self":[{"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/posts\/282"}],"collection":[{"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/comments?post=282"}],"version-history":[{"count":0,"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/posts\/282\/revisions"}],"wp:attachment":[{"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/media?parent=282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/categories?post=282"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/demo.namu66.com\/tronhoo3d\/wp-json\/wp\/v2\/tags?post=282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}