Forums
New posts
Search forums
What's new
New posts
Latest activity
Articles
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Lab talk, the good, the bad, and the ugly
Dental-CAM
New Desktop 3D Printer. Projet 1200 from 3D Systems.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="zero_zero" data-source="post: 138883" data-attributes="member: 9932"><p>These hobby extruders (printheads) are usually 0.2-0.3 mm diameter, so ideally a printed 3d pixel is about that size on the xy coordinate not counting the smudge what sometimes occures. It best works in continuous mode by tracing the outlines, turning the extruder on and off intermittently to get superfine details results in lots of garbage...specially with ABS..</p><p>Another thing what affects accuracy is repeatability. ..a given xy coordinate ideally should be on the same vertical in different z's...most of these low cost printers suffer for not being accurate by design...just look at the pics of the 3d printed objects you can clearly see the slight offsets between each layer... Manufacturers often omit this info on the spec sheets...just stating the resolution which is only calculated and very misleading...</p><p>Apparently FDM works better with rapid movements...so delta printers tend to be more accurate vs. cartesian setups, because the can change movement directions more easily. ..</p></blockquote><p></p>
[QUOTE="zero_zero, post: 138883, member: 9932"] These hobby extruders (printheads) are usually 0.2-0.3 mm diameter, so ideally a printed 3d pixel is about that size on the xy coordinate not counting the smudge what sometimes occures. It best works in continuous mode by tracing the outlines, turning the extruder on and off intermittently to get superfine details results in lots of garbage...specially with ABS.. Another thing what affects accuracy is repeatability. ..a given xy coordinate ideally should be on the same vertical in different z's...most of these low cost printers suffer for not being accurate by design...just look at the pics of the 3d printed objects you can clearly see the slight offsets between each layer... Manufacturers often omit this info on the spec sheets...just stating the resolution which is only calculated and very misleading... Apparently FDM works better with rapid movements...so delta printers tend to be more accurate vs. cartesian setups, because the can change movement directions more easily. .. [/QUOTE]
Insert quotes…
Verification
Who makes the popular shade guide?
Post reply
Forums
Lab talk, the good, the bad, and the ugly
Dental-CAM
New Desktop 3D Printer. Projet 1200 from 3D Systems.
Top
Bottom