Practical Solid Modeling for 3d Printing With Openscad 2013-09-25

8/12/2019 Practical Solid Modeling for 3d Printing With Openscad 2013-09-25

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Practical Solid Modeling

For 3D PrintingWith OpenSCAD

Ed Nisley KE4N!ed"nisley#po$o%"co&

so'tsolder"co&(S)*id+rench

Septe&$er ,-.3
mailto:[email protected]?subject=Arduino%20Survival%20Guide%20clicky...http://softsolder.com/http://squidwrench.org/http://squidwrench.org/http://softsolder.com/mailto:[email protected]?subject=Arduino%20Survival%20Guide%20clicky...


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!pco&ing E/ents

De'ining the 0er&s Practical 1 Solid Modeling 1 3D Printing 1 OpenSCAD

Constr*cti/e Solid 2eo&etry

CS2 Solids 1 Operations 1 0rans'or&ations OpenSCAD De$*gging 1 5terators 1 Conditionals

Modeling Printa$le O$6ects

2eo&etric 7 Process Constraints 8ole Cali$ration 7 Co&pensation

9ridging 1 O/erhang 1 S*pport Str*ct*res

Other Fancy St*''


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De'ining the 0er&s


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Practical

prac1ti1cal

ad6ecti/e : pra;ti;


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C*sto& Parts


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=epair Parts


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F*n St*''


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Other People>s ?5&@practical St*''


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Pro6ect Details

C*sto& Parts

Propane D +rench

Photodiode 'i%t*re

8el&et &irror

Microscope ring light

Microscope ca&era Ca&era &acro lens

A&ate*r radio 2PS

9attery 'i%t*re

=epair Parts

Caliper th*&$+heel

FreeBer shel' $rac;et

9roo& handle

ac**& hose cla&p

9ar cla&p handle
http://softsolder.com/2012/11/27/propane-tank-qd-adapter-tool/http://softsolder.com/2013/05/23/led-photodiode-test-fixture/http://softsolder.com/2011/07/01/helmet-mirror-mount-first-light/http://softsolder.com/2011/04/11/microscope-led-ring-illuminator/http://softsolder.com/2011/11/14/canon-sx230hs-microscope-and-close-up-macro-adapters/http://softsolder.com/2011/11/17/sx230hs-adapter-macro-lens-snout/http://softsolder.com/2012/09/11/kg-uv3d-gpsvoice-interface-aprs-bicycle-mobile/http://softsolder.com/2011/09/21/nb-5l-holder-coil-springs/http://softsolder.com/2011/05/27/thing-o-matic-caliper-repair-perfection/http://softsolder.com/2012/11/02/whirlpool-refrigerator-replacement-freezer-shelf-bracket/http://softsolder.com/2013/06/19/broom-handle-screw-thread-now-with-dedendum/http://softsolder.com/2013/02/02/samsung-vac-9048r-vacuum-cleaner-nozzle-handle-hose-bushing/http://softsolder.com/2012/01/30/harbor-freight-bar-clamp-new-handle/http://softsolder.com/2012/01/30/harbor-freight-bar-clamp-new-handle/http://softsolder.com/2013/02/02/samsung-vac-9048r-vacuum-cleaner-nozzle-handle-hose-bushing/http://softsolder.com/2013/06/19/broom-handle-screw-thread-now-with-dedendum/http://softsolder.com/2012/11/02/whirlpool-refrigerator-replacement-freezer-shelf-bracket/http://softsolder.com/2011/05/27/thing-o-matic-caliper-repair-perfection/http://softsolder.com/2011/09/21/nb-5l-holder-coil-springs/http://softsolder.com/2012/09/11/kg-uv3d-gpsvoice-interface-aprs-bicycle-mobile/http://softsolder.com/2011/11/17/sx230hs-adapter-macro-lens-snout/http://softsolder.com/2011/11/14/canon-sx230hs-microscope-and-close-up-macro-adapters/http://softsolder.com/2011/04/11/microscope-led-ring-illuminator/http://softsolder.com/2011/07/01/helmet-mirror-mount-first-light/http://softsolder.com/2013/05/23/led-photodiode-test-fixture/http://softsolder.com/2012/11/27/propane-tank-qd-adapter-tool/


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Pro6ect Details

F*n St*''

Ner' Pistol

CO, Caps*le Fins

0*% Coo;ie C*tter

Concrete 9loc;s

0riple Cylinder 0hing *ilting Pin Caps

Other Peoples> St*''

Dr" Who C*tter:Press

Knot

Fat 9*n$*n

Chal; people

Co&panion C*$e

Stan'ord 9*nny

Octop*s

3D Portrait
http://softsolder.com/2011/05/02/what-would-barbie-pack/http://softsolder.com/2013/04/28/co2-capsule-fins-16-gram-threaded-edition/http://softsolder.com/2011/09/07/tux-cookie-cutter/http://softsolder.com/2013/02/24/printing-scale-model-concrete-blocks/http://softsolder.com/2011/10/15/thing-o-matic-triple-cylinder-thing/http://softsolder.com/2012/04/24/quilting-pin-caps/http://softsolder.com/2012/01/25/dr-who-cookie-cutters/http://softsolder.com/2011/06/23/thing-o-matic-large-knots/http://www.thingiverse.com/thing:17237http://softsolder.com/2011/08/16/thing-o-matic-bicolored-prints/http://softsolder.com/2011/05/26/thing-o-matic-companion-cube-print-quality-vs-speed/http://softsolder.com/2011/06/02/thing-o-matic-graduation-day/http://softsolder.com/2011/05/14/thing-o-matic-fastest-cephalopods-evah/http://www.thingiverse.com/thing:8576http://www.thingiverse.com/thing:8576http://softsolder.com/2011/05/14/thing-o-matic-fastest-cephalopods-evah/http://softsolder.com/2011/06/02/thing-o-matic-graduation-day/http://softsolder.com/2011/05/26/thing-o-matic-companion-cube-print-quality-vs-speed/http://softsolder.com/2011/08/16/thing-o-matic-bicolored-prints/http://www.thingiverse.com/thing:17237http://softsolder.com/2011/06/23/thing-o-matic-large-knots/http://softsolder.com/2012/01/25/dr-who-cookie-cutters/http://softsolder.com/2012/04/24/quilting-pin-caps/http://softsolder.com/2011/10/15/thing-o-matic-triple-cylinder-thing/http://softsolder.com/2013/02/24/printing-scale-model-concrete-blocks/http://softsolder.com/2011/09/07/tux-cookie-cutter/http://softsolder.com/2013/04/28/co2-capsule-fins-16-gram-threaded-edition/http://softsolder.com/2011/05/02/what-would-barbie-pack/


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Solid Modeling

""" is a consistent set o' principles'or &athe&atical and co&p*ter &odeling o'

threedi&ensional solids"

Solid &odeling is disting*ished'ro& related areas o' geo&etric &odeling and

co&p*ter graphics $yits e&phasis on physical 'idelity"

0h*s sayeth 2oogledefine: solid modeling
https://www.google.com/search?q=define:+%22solid+modeling%22https://www.google.com/search?q=define:+%22solid+modeling%22


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0hree Di&ensional Solid Models


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E&phasis on Physical Fidelity


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3D Printing

Additi/e &an*'act*ring or 3D printing is aprocess o' &a;ing a threedi&ensional solid

o$6ect o' /irt*ally any shape 'ro& a digital &odel"

3D printing is achie/ed *sing anadditi/e process +here s*ccessi/e layerso'

&aterial are laid do+n in di''erent shapes"

0h*s sayeth Wi;ipediahttp::en"+i;ipedia"org:+i;i:3DGprinting
http://en.wikipedia.org/wiki/3D_printinghttp://en.wikipedia.org/wiki/3D_printing


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F*sed Deposition 3D Printing

F*sed Fila&ent Fa$rication 2lori'ied 2l*e 2*n 0echnology H 9e+are the trade&ar; 7 5P &ine'ield


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3D Printing !p Close

0*% Coo;ie C*tter

(

0he Mo/ie

http::so'tsolder"co&:,-..:-I:-J:t*%coo;iec*tter:
http://softsolder.com/2011/09/07/tux-cookie-cutter/http://youtu.be/7IaFHe8RG0Qhttp://softsolder.com/2011/09/07/tux-cookie-cutter/http://softsolder.com/2011/09/07/tux-cookie-cutter/http://youtu.be/7IaFHe8RG0Qhttp://softsolder.com/2011/09/07/tux-cookie-cutter/


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OpenSCAD

OpenSCAD is a so't+are 'orcreating solid3D CAD &odels"

(

5t is """ a 3Dco&pilerthatreads in a script 'ile descri$ing the o$6ect

andrenders the 3D &odel

0h*s sayeth OpenSCAD+++"openscad"org
http://www.openscad.org/http://www.openscad.org/


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OpenSCAD

0h*s it &ight $ethe application yo* are loo;ing 'or

+hen yo* are planning to

create 3D &odels o' &achine parts(

$*t pretty s*re itL is not""" 'or

creating co&p*terani&ated &o/ies"

0h*s sayeth OpenSCAD+++"openscad"org:a$o*t"ht&l
http://www.openscad.org/about.htmlhttp://www.openscad.org/about.html


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OpenSCAD Machine Models

MendelI-

$y nophead

0he OpenScad &odel no+ incl*des e/erythingin the ;it +hich is e/erything needed to $*ild the&achine apart 'ro& so&e stic;y tape
http://hydraraptor.blogspot.ca/http://hydraraptor.blogspot.ca/


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OpenSCAD Machine Models

9ea& enginesolid &odel

$y Da/id

Po+ellit>s 6*st a&oc;*p andnot intended'or 3dprinting


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OpenSCAD ?5&@Practical Models

S*perShapes

$y Willia&AAda&s

o* also get the

proced*ral te%t*re&appingchec;er$oardpattern thro+n in'or 'ree"

8e also does /erypractical st*''"""
http://www.thingiverse.com/thing:12770http://www.thingiverse.com/thing:12770


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CS2


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H an o$6ect is constr*cted 'ro& pri&iti/es

$y &eans o' allo+a$leoperations

+hich are """ 9oolean operationson sets

*nion intersectionand di''erence"

0h*s sayeth Wi;ipediahttp::en"+i;ipedia"org:+i;i:Constr*cti/eGsolidGgeo&etry
http://en.wikipedia.org/wiki/Constructive_solid_geometryhttp://en.wikipedia.org/wiki/Constructive_solid_geometry


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CS2 Pri&iti/es

OpenSCAD c*$e cylinder sphere
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solidshttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids


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OpenSCAD Color Sche&e


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OpenSCAD Editor Pre'erences


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OpenSCAD Design Option


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CS2 Pri&iti/e C*$e

e't drag rotate horiBShi'te't drag rotate /ert=ight drag &o/eScroll +heel Boo&

Ctrl- reset rotationCtrlP reset &o/e


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CS2 Pri&iti/e Cylinder

De'ine n*&$er o' sides

'n3 Q triang*lar'nR Q he%agonal ?n*ts@'nT Q octagonal


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CS2 Pri&iti/e Cylinder

De'ine n*&$er o' sides

'n3 Q triang*lar'nR Q he%agonal ?n*ts@'nT Q octagonal


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CS2 Pri&iti/e Sphere

Control 'acets at e)*ator

'a &ini&*& angle's &ini&*& siBe'n act*al n*&$er


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CS2 Operation !nion


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CS2 Operation Di''erence


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FI OpenCS2 /ie+F., 0hro+n 0ogether


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FI OpenCS2 /ie+F., 0hro+n 0ogether


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CS2 Operation 5ntersection
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations


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Essential 0rans'or&ations

0ranslate?%yBL@ =otate?%yBL@

=otate?angle@ aro*nd a%is

Color?na&e@ or Color?na&ealpha@ na&e notcase sensiti/e

Mirror?%yBL@

%yB nor&al o' &irror plane thro*gh origin

Scale?%yBL@

=esiBe?%yBL@
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformationshttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations


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Dish+asher =ac; Protector

http::so'tsolder"co&:,-.3:-,:-4:dish+asherrac;protectorsintothe&a+:

Di h h = ; P
http://softsolder.com/2013/02/04/dishwasher-rack-protectors-into-the-maw/http://softsolder.com/2013/02/04/dishwasher-rack-protectors-into-the-maw/


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Dish+asher =ac; Protector

http::so'tsolder"co&:,-.3:-,:-4:dish+asherrac;protectorsintothe&a+:

0 l t ? L@


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0ranslate?%yBL@

= t t ? L@


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=otate?%yBL@

Di'' FI i


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Di''erence FI ie+

Di'' F., i


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Di''erence F., ie+

Di'' FI i


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Di''erence FI ie+

Di''erence F., ie+


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Di''erence F., ie+

?=e@Co&pile FU


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?=e@Co&pile FU

Fast pre/ie+ &ode Si&ple depth $*''er

No act*al 3D &odel

Colors as e%pected Note%porta$le

Co&pile 7 =ender FR


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Co&pile 7 =ender FR

Solid Model 2eneration F*ll 3D rendering

All geo&etry resol/ed

Single color May not $e &ani'old

5' yo* scre+ed *p

E%porta$le

S0 File 2eneration


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S0 File 2eneration

ASC55 'ile 'or&at 8*ge 'iles

0hat>s all it ta;es

S0 File Contents


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S0 File Contents

0riangle tessellation No c*r/es

No &odel content

No s&arts S*r'ace nor&als

For each triangle

o* ha/e no control


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OpenSCAD

CS2 De$*gging

Ordinary FI ie+


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Ordinary FI ie+

8ighlighting an O$6ect V


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8ighlighting an O$6ect V

8ighlighting an O$6ect V in FI


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8ighlighting an O$6ect V in FI

8ighlighting V in F.,


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What o* 2ot


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What o* 2ot

Where>s the Missing 8ole in F.,


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Where s the Missing 8ole in F.,



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Where Did E/erything 2o


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Where Did E/erything 2o


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E/erything 8ighlighted C*$e FI


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y g g g

De$*g Modi'ier X in FI


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g

OpenSCAD Non9*gging


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p gg g

!se an e%ternal editor 8ide the OpenSCAD editor pane

Add : change one tiny little thing at a ti&e

Editor>s !ndo '*nction +ill $e yo*r 9FF !se +hat &eager assistance yo* ha/e

F., 0hro+n 0ogether /ie+

Modi'ier characters X and V echo?str?0his na&e@@ sho+s co&p*ted /al*es

Keep it si&ple and &a;e it o$/io*s
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Modifier_Charactershttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Modifier_Characters


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OpenSCAD5s

NotC

OpenSCAD Is Not C


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p

Si&ilar synta% vastlydi''erent se&antics Declarati/e not proced*ral

Descri$es geo&etry not process

ac;s &any high le/el 'eat*res 0his is not a $*g

Pro$a$ly a +riteonly lang*age

Not easy to /is*aliBe the e''ects Mod*les not easily re*sa$le d*e to geo&etry

2lo$al : local /aria$les /s" para&eters
http://en.wikipedia.org/wiki/Declarative_programminghttp://en.wikipedia.org/wiki/Procedural_languagehttp://en.wikipedia.org/wiki/Procedural_languagehttp://en.wikipedia.org/wiki/Declarative_programming


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0he $etter yo* areat C : CYY : Za/a : +hate/er

(

0he &ore tro*$le yo* area$o*t to ha/e+ith OpenSCAD

5teration
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functionshttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Conditional_and_Iterator_Functions


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'or ?i startincre&entendL@ Don>t get cle/er +ith incre&ent /al*e

!se integers co&p*te 'loats in loop

'or ?i list o' &any /al*es in a /ectorL@ Don>t get cle/er +ith nested /ectors arrays

5&plicit *nion?@ o' all o$6ects +ithin loop

!se intersectionG'or?@ 'or intersections"""

Sin; Strainer


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Sin; Strainer


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De'ine the Di&ensions


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Code sho*ld ha/e onlythe standard &agic

constantsH - . and ,H I- .T- 3R-H maybes)rt?,@

Create a Mod*le


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D*&p /al*es to console

0ry a Si&ple Case


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2eo&etric !nit

D*&p al*es to Console


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Module cache size: 0 modules

Compiling design (CSG Tree generation)...

C!": #$ia: #% &0% # holes: #% '

Compiling design (CSG roducts generation)...

olSetCache hit:clinder(*fn+0%*fa+,&%*fs+&%h+'%r,+-'%r&

olSetCache hit:clinder(*fn+0%*fa+,&%*fs+&%h+'.&%r,+%r

/ snippage ...

5terate O/er All =ings


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Conditionals


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i' ?this operator that@ As in C do*$lee)*al e)*ality operator

!se to select o$6ects not /al*es

i' ?this string /al*e@ Case &atters

/al*e ?this operator that@ i'Gtr*e i'G'alse

!se to select /al*es not o$6ects =e&e&$er 0here Are No aria$les

Constr*ct a 8andle


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Conditional O$6ect 5nstances


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Mod*le any &*ltiple*se

o$6ect

ayo*t Sho+


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ayo*t 9*ild


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Opti&iBe 9*ild Plat'or& ayo*t


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My 9est Practices


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OpenSCAD is not a progra&&ing lang*age Don>t" 9e" Cle/er"

5' yo* &*st $e cle/er preprocess in Python et" al"

0here Are No aria$les Only de'ined constants +ith glo$al scope

2et o/er it

8a/e a conditional layo*t 'or e/ery &od*le 0hin; o' it as a *nit test harness

Proceed in tiny steps


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Modeling Printa$le O$6ects

2eo&etric =e)*ire&ents Closed s*r'ace


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Closed s*r'ace

Watertight o$6ects Consistent Nor&als

All ai&ed o*t+ard

,Mani'old E%actly , 'aces : edge

No coincident 'aces

http::reprap"org:+i;i:SeparateGpageGonGtheG)*estion

https::en +i;ipedia org:+i;i:FileAc&e ;lein $ottle 6pg

What>s Wrong With 0his Pict*re Not a closed s*r'ace
http://reprap.org/wiki/Separate_page_on_the_questionhttps://en.wikipedia.org/wiki/File:Acme_klein_bottle.jpghttps://en.wikipedia.org/wiki/File:Acme_klein_bottle.jpghttp://reprap.org/wiki/Separate_page_on_the_question


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9eginning 2oogle S;etch!p'or 3D Printing http::+++"apress"co&:IJT.43-,33R.Ihttp::reprap"org:+i;i:S;etch*pGModelingG'orG3dGPrinting

http::reprap org:+i;i:Art o' ill*sion

Not a closed s*r'ace

Not +atertight 5nconsistent nor&als

Easy to see

May$e in this&odel"""

9oo; /ersion is OK

CS2 3D /ol*&es

Mesh ,D s*r'aces

Not ,Mani'old 4 Sides:Edge
http://www.apress.com/9781430233619http://reprap.org/wiki/Sketchup_Modeling_for_3d_Printinghttp://reprap.org/wiki/Art_of_illusionhttp://reprap.org/wiki/Art_of_illusionhttp://reprap.org/wiki/Sketchup_Modeling_for_3d_Printinghttp://www.apress.com/9781430233619


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What>s Wrong With 0his Pict*re


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http::so'tsolder co&:,-..:-T:,3:ne&a .J stepper &otor &o*nt

Solid Model Q 2Code
http://softsolder.com/2011/08/23/nema-17-stepper-motor-mount/http://softsolder.com/2011/08/23/nema-17-stepper-motor-mount/http://softsolder.com/2011/08/23/nema-17-stepper-motor-mount/


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http::'a$&ethe*s"crsndoo"co&:+i;i:inde%"php:S;ein'orgeGS;einlayer

http::so'tsolder co&:,-..:-I:-U:openscad /s s;ein'orge 4- $og*s g code:

What>s Wrong With 0hisPict*re
http://fabmetheus.crsndoo.com/wiki/index.php/Skeinforge_Skeinlayerhttp://softsolder.com/2011/09/05/openscad-vs-skeinforge-40-bogus-g-code/http://softsolder.com/2011/09/05/openscad-vs-skeinforge-40-bogus-g-code/http://fabmetheus.crsndoo.com/wiki/index.php/Skeinforge_Skeinlayer


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What>s Wrong With 0hisPict*re


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8o+

ManyFaces

What>s RightWith 0hisPict*re


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What>s RightWith 0hisPict*re

O


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One

Solid9loc;



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CoincidentFaces

F., ie+


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CoincidentFaces

What>s =ight With 0his Pict*re


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Protr*sion -".

What Does 5t 0a;e 0o 9e =ight

cylinder?r8andlePegOD:,


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cylinder?r 8andlePegOD:,

h3[Plate0hic;centertr*e@\

translate?=ingDia:,-Protr*sionL@cylinder?r8oleDia:,

h?0hic;ness Y ,[Protr*sion@@\

What>s =ight With 0his Pict*re


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Process i&itations


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F*nda&ental SiBes


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F*nda&ental SiBes


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M*stachehair

E%tr*der Cali$ration


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http::so'tsolder"co&:,-.3:-4:.R:&a;ergear&,'*nda&entaltesto$6ect:

E%tr*der Cali$ration
http://softsolder.com/2013/04/16/makergear-m2-fundamental-test-object/http://softsolder.com/2013/04/16/makergear-m2-fundamental-test-object/


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http::so'tsolder"co&:,-.3:-4:.R:&a;ergear&,'*nda&entaltesto$6ect:

S&allest Possi$le Feat*re
http://softsolder.com/2013/04/16/makergear-m2-fundamental-test-object/http://softsolder.com/2013/04/16/makergear-m2-fundamental-test-object/


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107/140


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Wall Width 0est Piece


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109/140http::+++"thingi/erse"co&:thingTTUI

8ole 7 Pillar 0ests


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110/140http::+++"thingi/erse"co&:thing4,T--

8ole 7 Pillar Cali$ration


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111/140http::so'tsolder"co&:,-.3:-4:,.:&a;ergear&,postandholecali$rationtesto$6ects:

8ole SiBe Co&pensation

!oleindage + 0.&1
http://softsolder.com/2013/04/21/makergear-m2-post-and-hole-calibration-test-objects/http://softsolder.com/2013/04/21/makergear-m2-post-and-hole-calibration-test-objects/


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9ased on Nophead>s Polygonal 8oleshttp::hydraraptor"$logspot"co&:,-..:-,:polyholes"ht&l

g 1

module olCl($ia%!eight%2orceSides+0) 3

Sides + (2orceSides 4+ 0) 5

2orceSides : (ceil($ia) 6 &)1 2i7$ia + $ia 8 cos(,908Sides)1

clinder(r+(2i7$ia 6 !oleindage)8&% h+!eight%*fn+Sides)1

8ole SiBe 0est Piece
http://hydraraptor.blogspot.com/2011/02/polyholes.htmlhttp://hydraraptor.blogspot.com/2011/02/polyholes.html


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113/140http::so'tsolder"co&:,-..:..:,U:thingo&atics&allholecali$ration:
http://softsolder.com/2011/11/25/thing-o-matic-small-hole-calibration/http://softsolder.com/2011/11/25/thing-o-matic-small-hole-calibration/


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9ridge 0est Piece


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115/140http::+++"thingi/erse"co&:thingIT-4

9ridge 0est


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116/140http::+++"thingi/erse"co&:thingIT-4

O/erhang


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117/140http::so'tsolder"co&:,-.,:-.:-3:planet$i;es*per'lashto*reasy&o*nt:

O/erhang /s" 9ridging
http://softsolder.com/2012/01/03/planet-bike-superflash-tour-easy-mount/http://softsolder.com/2012/01/03/planet-bike-superflash-tour-easy-mount/


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O/erhang and 9ridging


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O/erhang and 9ridging


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S*pport Str*ct*res


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9ridge ?@ S*pport Str*ct*re


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S*pport Str*ct*re Oops


123/140



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O/erhang S*pport Str*ct*re


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S*pport Str*ct*res


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9ridge ?@ S*pport Str*ct*re


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127/140http::so'tsolder"co&:,-.3:-,:-4:dish+asherrac;protectorsintothe&a+:

S*pport Str*ct*re


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=e&o/ing S*pport Str*ct*res


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130/140

130/140

Other Fancy St*''

Polygons and Polyhedrons

polygon?H@

'
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_Primitives#polygonhttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_Primitives#polygon


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131/140

ist o' points

linearGe%tr*de?"""@

polyhedron?H@

ist o' points

ist o' triangles

Calc*late the points

5nternal precision

Direct &eas*re&ent

http::so'tsolder"co&:,-.,:-4:-U:;g*/3dgps/oice$atterypac;align&entl*gs:

D]F 5&port 7 E%port

i&portGd%'?@ and pro6ection?@

5 th i t l di
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_to_3D_Extrusion#Linear_Extrudehttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids#polyhedronhttp://softsolder.com/2012/04/05/kg-uv3d-gpsvoice-battery-pack-alignment-lugs/http://softsolder.com/2012/04/05/kg-uv3d-gpsvoice-battery-pack-alignment-lugs/http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids#polyhedronhttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_to_3D_Extrusion#Linear_Extrudehttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_Primitives#import_dxfhttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/3D_to_2D_Projectionhttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/3D_to_2D_Projectionhttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_Primitives#import_dxf


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132/140

5n theory yo* can i&port co&ple% diagra&s

5n practice it>s very'*ssy a$o*t content

2ood l*c;"""


133/140

O*tlines Fro& Dra+ings

Peri&eter Q Shape

St t ' EPS


134/140

134/140

Start 'ro& EPS

i&ited resol*tion

Maintain chirality

A si&ple &atter o' so't+are 5&age&agic;F0W

&in;o+s;i?@s*&

http::so'tsolder"co&:,-..:-I:-J:t*%coo;iec*tter:

S*r'ace 8eight Maps

s*r'ace?'ile"""@

ery speci'ic 'ile 'or&at
http://imagemagick.org/script/index.phphttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations#minkowskihttp://softsolder.com/2011/09/07/tux-cookie-cutter/http://softsolder.com/2011/09/07/tux-cookie-cutter/http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations#minkowskihttp://imagemagick.org/script/index.phphttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#Surfacehttp://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Other_Language_Features#Surface


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135/140

ery speci'ic 'ile 'or&at

T $it grayscale Q height

es ,UR Shades o' 2rey"""

A si&ple &atter o' so't+are

5&age&agic;F0W

9ash scripting

] resol*tion li&it

http::so'tsolder"co&:,-.,:..:-I:a*to&atedcoo;iec*ttersp*ttingitalltogether:
http://imagemagick.org/script/index.phphttp://softsolder.com/2012/11/09/automated-cookie-cutters-putting-it-all-together/http://softsolder.com/2012/11/09/automated-cookie-cutters-putting-it-all-together/http://imagemagick.org/script/index.php


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reprap org

More 5n'o
http://reprap.org/http://reprap.org/


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137/140

reprap"org+++"openscad"org

MyAlong the G-Code Waycol*&n

5n Digital Machinist&agaBine

And o' co*rse"""so'tsolder"co&

So&e +e$ i&ages pro$a$ly copyrighted $*t

sho+n 7 attri$*ted here *nder 'air *se+hate/er that isL

Copyrightish St*''
http://reprap.org/http://www.openscad.org/http://www.digitalmachinist.net/http://softsolder.com/http://softsolder.com/http://www.digitalmachinist.net/http://www.openscad.org/http://reprap.org/


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138/140

+hate/er that isL

0he rest is &y o+n +or;

^

0his +or; is licensed *nder theCreati/e Co&&ons Attri$*tionNonco&&ercialShare Ali;e 3"- !nited States icense"

0o /ie+ a copy o' this license /isithttp::creati/eco&&ons"org:licenses:$yncsa:3"-:*s:

or send a letter toCreati/e Co&&ons U43 8o+ard Street Uth Floor

San Francisco Cali'ornia I4.-U !SA"

Ed NisleySay N5SSlee altho*gh +e_re on the hal'essed $ranch o' the tree

Engineer ?e% PE@ 8ard+are 8ac;er Progra&&er A*thor

0he E&$edded PC_s 5SA 9*s Fir&+are 2adgets Practical 0ric;s
http://creativecommons.org/licenses/by-nc-sa/3.0/us/http://creativecommons.org/licenses/by-nc-sa/3.0/us/http://softsolder.com/2011/10/03/the-embedded-pcs-isa-bus-firmware-gadgets-and-practical-tricks-unleashed/http://softsolder.com/2011/10/03/the-embedded-pcs-isa-bus-firmware-gadgets-and-practical-tricks-unleashed/


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139/140

Septe&$er .IR,

0he E&$edded PC s 5SA 9*s Fir&+are 2adgets Practical 0ric;sCirc*it Cellar +++"circ*itcellar"co&

Fir&+are F*rnace ?.ITT.IIR@ Nasty gr*$$y hard+are $ashingA$o/e the 2ro*nd Plane ?,--. """@ Analog and =F st*''

Digital Machinist +++"ho&eshop&achinist"net Along the 2Code Way ?,--T """@ 2Code &ath 3D printing

Dr" Do$$>s Zo*rnal +++"dd6"co& E&$edded Space ?,--.,--R@ All things e&$edded Nisley>s Note$oo; ?,--R,--J@ 8ard+are 7 so't+are collisions

My 9log 0he S&ell o' Molten Pro6ects in the Morningso'tsolder"co&

If you
http://softsolder.com/2011/10/03/the-embedded-pcs-isa-bus-firmware-gadgets-and-practical-tricks-unleashed/http://www.circuitcellar.com/http://www.homeshopmachinist.net/http://www.ddj.com/http://softsolder.com/http://softsolder.com/http://www.ddj.com/http://www.homeshopmachinist.net/http://www.circuitcellar.com/http://softsolder.com/2011/10/03/the-embedded-pcs-isa-bus-firmware-gadgets-and-practical-tricks-unleashed/


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Practical Solid Modeling for 3d Printing With Openscad 2013-09-25