new print test

12 files changed, 87 insertions, 0 deletions

diff --git a/additions/HW/makerbot/printed-objects/img_0992-t.jpg b/additions/HW/makerbot/printed-objects/img_0992-t.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0992.jpg b/additions/HW/makerbot/printed-objects/img_0992.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0993-t.jpg b/additions/HW/makerbot/printed-objects/img_0993-t.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0993.jpg b/additions/HW/makerbot/printed-objects/img_0993.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0995-t.jpg b/additions/HW/makerbot/printed-objects/img_0995-t.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0995.jpg b/additions/HW/makerbot/printed-objects/img_0995.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0996-t.jpg b/additions/HW/makerbot/printed-objects/img_0996-t.jpg
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diff --git a/additions/HW/makerbot/printed-objects/img_0996.jpg b/additions/HW/makerbot/printed-objects/img_0996.jpg
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+++ b/additions/HW/makerbot/printed-objects/img_0996.jpg
diff --git a/additions/HW/makerbot/printed-objects/img_0997-t.jpg b/additions/HW/makerbot/printed-objects/img_0997-t.jpg
new file mode 100644
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+++ b/additions/HW/makerbot/printed-objects/img_0997-t.jpg
diff --git a/additions/HW/makerbot/printed-objects/img_0997.jpg b/additions/HW/makerbot/printed-objects/img_0997.jpg
new file mode 100644
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diff --git a/src/HW/makerbot/printed-objects/document.en.rest.tt b/src/HW/makerbot/printed-objects/document.en.rest.tt
index 85775b2..7755110 100644
--- a/src/HW/makerbot/printed-objects/document.en.rest.tt
+++ b/src/HW/makerbot/printed-objects/document.en.rest.tt
@@ -50,3 +50,46 @@ a circle
 
 Sadly, the two halves have warped a bit during printing, and it will
 not be easy to glue them in such a way as to keep them "round".
+
+The benchmark piece
+===================
+
+Just to try it out, I printed `the RepRap benchmark piece
+<http://www.thingiverse.com/thing:968>`_.
+
+First problem: the raft wasn't sticking to the build base; solved by
+keeping the extruder nearer to the base.
+
+I discovered immediately afterwards that the build base was not
+precisely horizontal; I don't know whether the plastic build base is
+distorted, or the translation axes are somehow misaligned (hard to
+believe).
+
+After about forty minutes of printing, I notice that the model is
+distorted; it happens quite often, but this time it's warping the
+build base! In fact, I soon had to abort the print: the base had
+detached from the wooden support that holds it to the Y stage, and the
+extruded filaments were going every which way.
+
+Results:
+
+[% WRAPPER 'figure.tt' pic='img_0992' alt="half the benchmark piece" %]
+This is all I could print before having to abort.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0993' alt="warped piece" %]
+See how bent it is.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0995' alt="warped piece, from the side" %]
+From the side it's even more noticeable.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0997' alt="warped base, from the side" %]
+And this is how much my build base has bent…
+[% END %]
+
+To do for next time:
+
+* check the orthogonality of the base
+* use the bolted build base, instead of the one held with double-sided tape
diff --git a/src/HW/makerbot/printed-objects/document.it.rest.tt b/src/HW/makerbot/printed-objects/document.it.rest.tt
index 63b07cf..9c5f74b 100644
--- a/src/HW/makerbot/printed-objects/document.it.rest.tt
+++ b/src/HW/makerbot/printed-objects/document.it.rest.tt
@@ -48,3 +48,47 @@ Metà dado, visto da sopra: è un'ottima approssimazione di un cerchio
 
 Purtroppo, le due metà si sono un po' imbarcate durante la stampa, e
 non sarà facile incollarle in modo che restino "tonde".
+
+Il pezzo di riferimento
+=======================
+
+Per prova, ho stampato `il pezzo di prova per RepRap
+<http://www.thingiverse.com/thing:968>`_.
+
+Primo problema: la raft non si voleva attaccare alla base; risolto
+tenendo l'estrusore più vicino alla base.
+
+Ho scoperto subito dopo che la base non è precisamente orizzontale,
+non so se si è storta la parte in plastica o se in qualche modo gli
+assi di traslazione si sono disallineati (ci credo poco).
+
+Dopo una quarantina di minuti di stampa, mi accorgo che il modello si
+è storto; capita spesso, ma questa volta si sta portando dietro la
+base! Infatti, dopo poco ho dovuto interrompere la stampa: la base si
+era staccata dal supporto in legno che la tiene solidale alla
+piattaforma Y, e i fili estrusi stavano andando un po' a spasso.
+
+Risultati:
+
+[% WRAPPER 'figure.tt' pic='img_0992' alt="abbozzo del pezzo di
+prova"%]
+Questo è quanto sono riuscito a stampare prima di dover fermare il
+tutto.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0993' alt="distorsione del pezzo" %]
+Notate come è storto.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0995' alt="distorsione del pezzo, di taglio" %]
+"Di taglio" si vede meglio.
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0997' alt="distorsione della base, di taglio" %]
+Ed ecco quanto è storta la mia basetta…
+[% END %]
+
+Da fare per la prossima volta:
+
+* controllare l'ortogonalità della base
+* usare la base con i bulloni, invece di quella tenuta col biadesivo