Animoko head,

So I have a new job! Well I have done for number of months, since November, and I’m loving it. I am Mechanical Engineer at Aardman Features Shaun the Sheep ltd. Working on the new Shaun the sheep movie.

Some tasks I have been working on include overhauling the MILO motion control robots, from a company called Mark Roberts Motion Control. Redesigning a focus motor using Nena 8 steppers, and generally designing, nodding and helping out Art department with metalwork requirements.

My current proje t is redesigning the heads for the Animoko motion control platforms, again from Mark Roberts.

This is required as currently it is awkward to fir the camera onto the head without having to use a secondary heavy motion control platform ‘rotate’.

This new bracket will allow the camera and sliding base plate to sit nicely direct, whilst keeping it all nodal.

Here are some pics of progress…

Rough plates

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Basic mock up

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Sliding base plate shown

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Workings out and drawing on paper, by Lew.

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Base plate machines to size and slots added to allow for future use with other campers, note side bits fitted. Central holes to allow direct camera mounting shoudld that be required.

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Rear of top part with slit, mounting holes and pockets to reduce weight, shown fresh from milling machine.

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The milling machine, and workshop, lathe etc

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Below is the shadow board and Myford ML7-R lathe

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Startrite 20v bandsaw

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PCB breakout boards for SMD components

Some links to design files (and buying options) for SMD devices prototype boards.


http://www.mikrocontroller.net/articles/SMD_2_Steckbrett_Adapter
https://www.sparkfun.com/products/495
http://www.thingiverse.com/thing:1904
http://futurlec.com/SMD_Adapters.shtml
http://www.proto-advantage.com/store/index.php
http://www.imajeenyus.com/electronics/20110805_smd_adapter_boards/index.shtml

Retraction settings

After a while my retractions settings were not looking great. looking at slic3r a bi more closely, i realised the settings for retraction speed was in mm/s not mm/min, therefore the setting of 30 was causing the stepper to screetch!
i reduced this down to 4mm/s and 4mm retraction which was painfully slow, so a quick q on REPREP IRC channel brought Dreamscape74 suggesting their settings.

Now retraction is set at 14mm/s and 2mm retraction length.

Now onto the brige test…