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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>HCDE Digital Fabrication Projects: Assignment 2, Cubes 'n' Tubes</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/css/bulma.min.css">
<script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
<style>
.body-text p {
margin-bottom: 1rem;
}
h3 {
font-size: 1.5rem;
margin-top: 1rem;
margin-bottom: 0.25rem;
}
div#results-container {
width: 99%;
}
table#results-table {
/*width: 1500px;*/
}
table#results-table th {
text-align: center;
vertical-align: middle;
}
table#results-table td {
white-space: nowrap;
}
table#results-table td.thing-cell {
min-width: 15rem;
white-space: normal;
}
table#results-table td.notes-cell {
min-width: 20rem;
white-space: normal;
}
</style>
</head>
<body>
<section class="section">
<div class="container">
<div class="level">
<div class="level-item-left"><a href="index.html">← back</a></div>
</div>
<div class="tile is-ancestor">
<div class="tile is-parent">
<div class="tile is-child box">
<h2 class="title is-size-2">Assignment 2: Cubes 'n' Tubes</h2>
<div class="columns">
<div class="column body-text is-4">
<p>Is it a cube or is it a tube?</p>
</div>
<div class="column body-text is-8">
<h3 class="title">Printer Assembly</h3>
<p>Before assembling the printer, I installed the "silent mainboard" upgrade. This required
removing the default mainboard and swapping over all of the cables. I opted for the
simplest route and swapped the cables one-by-one, rather than labelling all the cables
individually and reassembling. This ended up with some tight contortions to get it all
together, so I'd recommend labels and photos if I were to do it again. This took about
an hour.</p>
<p>I assembled the printer using the instructions and <a
href="https://www.youtube.com/watch?v=me8Qrwh907Q">this video</a>.</p>
<p>Assembling the printer took about 3 hours, at the end of which I realized the z-switch
cable did not reach because I had routed it through the same outlet at the rest of the
cables. I was able to partially disassemble the mainboard cover and re-route the cable
through the dedicated z-switch slot, but this was not fun.</p>
<p>Then I assembled the enclosure and popped the printer in snug. One note about the
Creality enclosure: it's designed with a side-panel to help access the extruder, and a
nice grommet to pass the power cable through. Unfortunately, the enclosure is stitched
together <i>backwards</i> so these touches don't help you at all. This isn't a one-off
problem. as the photos on their site have the same issue.</p>
<p>If I had this to do again, I would not have bothered with the silent mainboard or the
enclosure.</p>
</div>
</div>
</div>
</div>
</div>
<div class="box">
<p class="title">Print Runs</p>
<div id="results-container" class="table-container">
<table id="results-table" class="table is-striped is-hoverable">
<thead>
<tr>
<th rowspan="2">#</th>
<th rowspan="2">Thing</th>
<th rowspan="2">Settings</th>
<th rowspan="2">Results</th>
<th rowspan="2">Cube?</th>
<th rowspan="2">Tube?</th>
<th rowspan="2">W</th>
<th rowspan="2">H</th>
<th rowspan="2">D</th>
<th colspan="2">Print Time</th>
</tr>
<tr>
<th>Estimated</th>
<th>Actual</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td class="thing-cell">2 cm cube</td>
<td>
Low Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ use brim, 4 mm width</li>
</ul>
</td>
<td class="notes-cell">Layers and top pattern very visible. Brim came away cleanly, but
left a border at the bottom that needs to be trimmed/filed off. Faces of cube
slightly recessed from the corners.
</td>
<td>yes</td>
<td>no</td>
<td>19.81-19.99 mm</td>
<td>19.60-19.72 mm</td>
<td>20.13-20.19 mm</td>
<td>21m</td>
<td>22m 16s</td>
</tr>
<tr>
<td>2</td>
<td class="thing-cell">2 cm cube
</td>
<td>
Standard Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ use brim, 4 mm width</li>
</ul>
</td>
<td class="notes-cell">Layers noticeably smaller. Brim did not come away cleanly (needed
to be trimmed). Cube faces are smooth relative to the corners (no inset)
</td>
<td>yes</td>
<td>no</td>
<td>19.87-20.04 mm</td>
<td>19.69-19.73 mm</td>
<td>20.08-20.21 mm</td>
<td>31m</td>
<td>31m 40s</td>
</tr>
<tr>
<td>3</td>
<td class="thing-cell">2 cm cube
</td>
<td>
Super Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ use brim, 4 mm width</li>
</ul>
</td>
<td class="notes-cell">Very fine layers, probably would be masked by paint. Brim still
leaves lingering traces. Dimensions are more precise and the crispest corners.
</td>
<td>yes</td>
<td>no</td>
<td>19.71-19.77 mm</td>
<td>19.54-19.57 mm</td>
<td>19.96-20.01 mm</td>
<td>51m</td>
<td>50m 56s</td>
</tr>
<tr>
<td>4</td>
<td class="thing-cell">2cm cube</td>
<td>
Super Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ concentric top and bottom layer</li>
</ul>
</td>
<td class="notes-cell">Layers are very fine. Tolerance of cube is high, except for
bottom layer which is an outlier. Top edges cleaner than previous cubes. Using skirt
rather than brim much nicer to deal with.
</td>
<td>yes</td>
<td>no</td>
<td>19.93 - 20.35 mm</td>
<td>19.54 - 19.65 mm</td>
<td>20.02 - 20.53 mm</td>
<td>51m</td>
<td>50m 27s</td>
</tr>
<tr>
<td>5</td>
<td class="thing-cell">2cm x 0.5cm tube</td>
<td>
Super Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ single extrusion wall thickness</li>
<li>+ "vase mode"</li>
</ul>
</td>
<td class="notes-cell">Wall thickness 0.33 - 0.35 mm, except first couple of layers
which are 0.85-0.87 mm.
</td>
<td>no</td>
<td>yes</td>
<td>20.05 - 20.23 mm</td>
<td>4.75 - 4.77 mm</td>
<td>-</td>
<td>-</td>
<td>9m 7s</td>
</tr>
<tr>
<td>6</td>
<td class="thing-cell">2cm x 0.5cm tube</td>
<td>
Super Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ double extrusion wall thickness</li>
<li>+ z-seam: random</li>
<li>+ "vase mode"</li>
</ul>
</td>
<td class="notes-cell">First layer printed at double thickness (inner surface), would a
raft have helped?
</td>
<td>no</td>
<td>yes</td>
<td>19.78 - 20.02 mm</td>
<td>4.71 - 4.78 mm</td>
<td>-</td>
<td>-</td>
<td>10m 31s</td>
</tr>
<tr>
<td>7</td>
<td class="thing-cell">2cm x 0.5cm cylinder, 0.1cm tolerance</td>
<td>
Super Quality
<ul class="content">
<li>+ printed on its side</li>
<li>+ initial layer speed: 15 mm/s</li>
<li>+ double extrusion wall thickness</li>
<li>+ z-seam: random</li>
<li>+ w/ supports</li>
</ul>
</td>
<td class="notes-cell">First attempt forgot to turn off "vase mode", disastrous! Bottom
side was flat. Second attempt came out better, but the supports are difficult to
remove and the base is very flat. Excluding the support artifacts, the height is less than a
layer-height of tolerance.
</td>
<td>no</td>
<td>no</td>
<td>19.20 - 20.02mm</td>
<td>4.99 - 5.01</td>
<td>-</td>
<td>-</td>
<td>32m 48s</td>
</tr>
<tr>
<td>8</td>
<td class="thing-cell">2cm x 0.5cm cylinder, 0.1cm tolerance</td>
<td>
Super Quality
<ul class="content">
<li>+ initial layer speed: 15 mm/s</li>
<li>+ double extrusion wall thickness</li>
<li>+ z-seam: random</li>
<li>+ concentric top/bottom layers</li>
<li>+ raft</li>
</ul>
</td>
<td class="notes-cell">Overall nice and solid, the concentric pattern looks good on circular
pieces. The raft did not want to come off this time.
</td>
<td>no</td>
<td>no</td>
<td>19.91 - 20.10 mm</td>
<td>4.88 - 5.02 mm</td>
<td>-</td>
<td>-</td>
<td>28m 27s</td>
</tr>
<tr>
<td>9</td>
<td class="thing-cell">20.0mm ±0.5mm cube with a 5.0mm ±0.5mm</td>
<td>
Super Quality
<ul class="content">
<li>+ normal speed: 40 mm/s</li>
<li>+ initial layer speed: 15 mm/s</li>
<li>+ double extrusion wall thickness</li>
<li>+ z-seam: random</li>
<li>+ concentric top/bottom layers</li>
</ul>
</td>
<td class="notes-cell">Inner dimensions, 9.69 - 9.99 mm (-0.32, -0.01). Bottom layers are slightly thicker (outside of tolerance)</td>
<td>yes</td>
<td>yes</td>
<td>19.88 - 20.05mm<br>(-0.12, +0.05)</td>
<td>19.55 - 19.67mm<br>(-0.45, -0.33)</td>
<td>20.03 - 20.19mm<br>(+0.03, +0.19)</td>
<td>-</td>
<td>3h 56m 43s</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</section>
</body>
</html>