<p>I have just ordered some filament samples (each sample is 10m x 1.75mm). How should I test the samples, given that there is only 10 metres of each to play with? Just printing a benchy will use about 4 metres. I would probably want to print a benchy, so that leaves 6 metres to play with. I am mostly interested in producing functional (not decorative) pieces. I do not have a heated bed.</p>

[{'answer_id': 4362, 'author': 'Davo', 'author_id': 4922, 'author_profile': 'https://3dprinting.stackexchange.com/users/4922', 'pm_score': 2, 'selected': False, 'text': '<p>Select an STL that exhibits characteristics you want to test (bridging, resistance to various pressures) and print it with each material. Preferably, run the <strong>same exact gcode</strong>, only changing temperatures, so that you get an apples-to-apples comparison.</p>\n'}, {'answer_id': 4364, 'author': 'markshancock', 'author_id': 6417, 'author_profile': 'https://3dprinting.stackexchange.com/users/6417', 'pm_score': 2, 'selected': False, 'text': '<p><strong>Thomas Sanladerer has an excellent YouTube series called <a href="https://www.youtube.com/playlist?list=PLDJMid0lOOYl8TZJV9xHznKFq5yA5ZTi2" rel="nofollow noreferrer">Filaween</a>.</strong></p>\n\n<p>In it he tests and compares filament using a pretty analytical approach.  I think you would learn a lot from the tests he does.  See what type of test most interests you and adapt them for your needs.  Load your test into Cura and you can see how much filament they are going to use.  If needed, trim them back a bit to fit your material limits.</p>\n\n<p>Also make sure and also look at Thomas\'s new video <a href="https://www.youtube.com/watch?v=nlIFMy4vIeM&amp;t=587s" rel="nofollow noreferrer">Filaween 2.0</a> where he goes over the filament testing strategies he will be using for this year\'s filament tests.</p>\n\n<p>If you want to see his results, he has created a <a href="https://docs.google.com/spreadsheets/d/1j9QazgoocuzHxg6qUXevq3dpAmmT2E87089FX6gRgWU/edit#gid=0" rel="nofollow noreferrer">HUGE Wall of Data</a> of all the filaments he tested:</p>\n\n<p><a href="https://docs.google.com/spreadsheets/d/1j9QazgoocuzHxg6qUXevq3dpAmmT2E87089FX6gRgWU/edit#gid=0" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JEWb6m.jpg" alt="Data table" title="Data table"></a></p>\n'}, {'answer_id': 4369, 'author': 'Kallz', 'author_id': 6760, 'author_profile': 'https://3dprinting.stackexchange.com/users/6760', 'pm_score': 2, 'selected': False, 'text': "<p>There are some simple steps you can write your G-code for that.</p>\n\n<ol>\n<li>Filament should have accuracy of diameter 1.75&nbsp;mm</li>\n<li><p>Write G-code into file for next test case and run on machine</p>\n\n<ol>\n<li><p>For continue extrusion 100mm at different feed rate <strong>F50</strong> <code>F100 F150 F200</code> up to the machine's maximum feedrate G-code for that</p>\n\n<pre><code>G91\nG92 E0\nG1 E100 F50\n</code></pre></li>\n<li><p>You have prime and suck parameter for your machine so test it. For example, prime and suck both are 4&nbsp;mm and repeat last two line to continue testing</p>\n\n<pre><code>G91\nG92 E0\nG90\nG1 E5 F100\nG1 E1 F100\nG1 E5 F100\nG1 E1 F100\n</code></pre></li>\n<li><p>This test for continue extrude and wait for 2 sec and then extrude again, repeat following G-code again and again continue</p>\n\n<pre><code>G90\nG92 E0\nG1 E10 F100\nG4 P2\n</code></pre></li>\n<li><p>Test prime suck with delay</p>\n\n<pre><code>G92 E0\nG90\nG1 E5 F100\nG4 P2\nG1 E1 F100\nG4 P2\nG1 E5 F100\nG4 P2 \nG1 E1 F100     \n</code></pre></li>\n<li><p>Final is print</p></li>\n</ol></li>\n</ol>\n\n<p>In all of the above tests filament should not getting jammed and, for new material, temperature also may be a problem - so first set temperature for a new material.</p>\n\n<p>Before starting test cases, clean the nozzle.</p>\n"}]
['https://3dprinting.stackexchange.com/questions/4361', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/3953/']