Robotic 3D prototypers
The University of Pretoria recently democratized making things by opening a Makerspace. Not in Engineering, or Architecture, but at in the Library.
They acquired a Morgan Pro, and two Robobeasts to help students make their ideas come to fruition.
The space is very friendly and open (and neat… for a makerspace)
We are very proud to be associated with such a wonderful addition to the university facilities.
I am busy setting up a new calibration guide for use with the smoothieware firmware, and a FAQ section is soon to follow.
Check out the drop down menu under: “Morgan Startup and Calibration” for more
Andre Frans is the winner of the Morgan Pro at the Geekfest Raffle!
That’s right…
See us at the Dark Carnival in Gauteng, buy a ticket, and stand a chance to win one of these beauties – Hand built by me of course!
http://www.darkcarnival.co.za/geekfest-2014/
See you there
Q
Packing by bag for the Popular Mechanics Futuretech 2014 show in Cape Town, South Africa 10 Oct 2014. We will have a Morgan and a Beast on display…
Everything is in place at the new factory in Centurion after a brief but intensive move…
Will post some photo’s tomorrow!
Cheers,
Quentin
I was asked this question again, and this was my reply:
Disclaimer: The calculations were done quickly on a calculator and may have slight rounding errors – but not to a factor of 10!
The large wheel radius is 75mm making circumference = 471mm
The pulley on the motor is typically T2 20 or T2 16: 40mm or 32mm
Ratio is thus 11.78 or 14.72
Given a step size of 0.9deg, and 32uStep an electronic step is 0.028125 degree
With the ratio, that becomes 0,002387521 or 0,001910666 degrees on the large wheel.
Lowest possible resolution would be at full arm extension 90degrees to the extended direction, which is less than 150mm+150mm from the SCARA tower, but for simplicity let’s make it 300mm.
Circumference of that symbolic circle would be 1885mm, making the single step lowest resolution movement 6.282mm*0,002387521 (40mm pulley) which is 0.015mm. This is smaller than the effect of filament variation or room temperature variation on your print…
Morgan Pro has a advertised specification of 100micron resolution – which means it will definitely pass the specification and will probably achieve more by a factor of 9 or 10 in terms of movement alone
With the smaller pulley this is even higher….
Enough calculations for now 😉
Reprap Morgan is proud to announce that we are partnering with Robohand / Robobeast to help enable many more.
Morgan and RoboBeast will soon be manufactured in the same plant. This will be the driving force behind one of the largest bespoke print-farms in South Africa. Robohands, Robobeasts and Morgans will roll of the plant in harmony.
Richard van As (Robo Rich) is currently in the USA, setting up the largest print farm at the College of the Ouachitas. in Arkansas
They are fixing up and calibrating more than 50 (brand new) formerly troublesome makerbots to make Robohands… and other things while the opportunity presents itself 😉
You may have noticed some changes on the Morgan Site… A certain good looking 3D printer seems to dominate the page…
Richard van As helped make this metamorphosis possible, by subtly suggesting material substitutions, hinting at colour choices, and not so subtly bugging Quentin to get his ducks into a row and redesign Morgan to be more robust, easier to build and manufacture and to be very easy on the eye… Every good wunderkind needs a good mentor.
Thanks to House4Hack that brought these two together…
Morgans are hiding all over the world… Add yours to the Map and be an inspiration to builders close to you.
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