Reprinting the Mecanum wheels again for someone else but decided to improve the design somewhat. One of the most common questions by new users of the Up! 3D Printer is how to remove the raft. The raft is one of the love/hate things of the Up! printer, some people want to get rid of it without understand the importance of it. Some thoughts and tips on this ahead…
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I’m really pushing the limits of my backcronym ability 
I present to you another WTF! This time a whistle.
The design originally was intended as a pendant for my niece that’s customized with her name and printed using wax and cast into sterling silver… it was originally 3 tone too…
...and pink...
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Posted by Madox in Microcontrollers, Software, Software Tips & Tricks, WTF, tags: 3D Printing, Alibre, Android, ARM, Chumby, Crosscompiling, iPhone, Python
Couldn’t resist extending the software test on the mecanum wheel base…video comes later this time…
The ‘quick and nasty’ software files are still the same as in the previous post. Pure software test only, couldn’t resist the temptation to try it via WiFi on a stock Chumby instead of USB tethering. As such the hardware frame is a bit too flimsy and the batteries aren’t enough to power the Chumby without brown-out resets. These will be improved upon soon
This demonstrates the ‘touch’ (initialize) and ‘swipe’ (move/offset) control on touch screens. Will try the DeviceMotion Javascript API on iOS 4.2 devices (iPhone 4G/iPad) if I can get my hands on that filth… 
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Mecanum wheel rover/robot base for around $25! Or around $110 with a 454Mhz Linux Processor with touch screen and wifi (Add Chumby + Servo controller). Read on for build instructions. Read the rest of this entry »
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Propeller Hats!
A picture post showing the latest delivery from Shapeways. Joris just posted guidelines on stainless steel printing so I thought I’ll post some photos to show what tiny detail can be achieved.
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The 3 different styles of rings designed using Alibre Xpress have arrived from Shapeways!
The various rings from Shapeways next to a Ponoko test card
The ‘thin wire one’ (can’t think of a name) has never been printed before. It was first dreamt up in the shower , I’m surprised how well a scribble on the fogged up glass of the shower turned out printed in stainless steel!
Lets have a better look
Stainless steel and bronze rings
Stainless steel and bronze rings
Hey look, there’s my invoice. $1.32 USD for the ‘thin wire one’ (have to think of a name…or have to remember what I named it on Shapeways…) – great price eh?
The print quality is very good though it appears (not sure) that some post processing (polishing?) was done.
Nothing much else to say! Have to move on to the next post…Ciao!
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Just a few happy snaps of the reprinted models Shapeways has sent. The detail on the white strong and flexible material is crisp this time around and gives me confidence again to start ordering in this material
The heart shape rings came out in perfect crisp detail!
Photos after the break…
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Shapeways has a tutorial on painting models printed using their ‘White Strong & Flexible’ (WS&F) material but not very much hints to go on for their other materials. I had ‘some’ luck with using Rub ‘n Buff on the WS&F material on the heart ring so I thought I’ll give it a go on the black detail material from Shapeways.
One quick photo to summarise the result :
Iris blades painted with Rub 'n Buff without the buffing...
The finish is pretty good for a 20 second rub on. I only used tissues to apply the rub n buff because i couldn’t get my hands on any decent cloth and I didn’t want my fingertips all silver again. With some experimentation I noticed that it is much easier to apply the paint along the ‘grain’. Keep it mind that using this paint could get a bit messy so remember to work ontop of some tissue/newspaper! (I used tissue ontop of this very laptop I’m typing on now).
Give it a try!
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This is really a continuation of a forum thread where I may have complained too much about the quality of the recent shapeways prints I received.
Here are some photos with some explanations/captions :-
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