Hmm, the PLA can have about 0.3 to 1% shrinkage, which my explain tightness in the long direction.
But i re-measured, and it seems that the model has small error too.
From the model: inner length = 127.34079 measured from print 127.2
phone 127.75
inner width = 65.443081 measured from print 65.3
phone 65.0
I just ordered some Premium PLA 90 from Orbi-tech. Lets see is it any better, color selection is poor for 1.75mm (3mm better)
I think i have asked, but what cad do you use? possible to share originals under DWTFYWT-license ? or just for me, i'll buy you a beer or ES
Yes, there's is a small error in model but not so big as that comment in GitHub indicates. I measured the dimensions with a simple ruler and made some scaling afterwards so there's definetely small errors (+-0.5mm) + PLA shrinks a little.
I modeled the model originally with Autodesk 123D Design: https://www.123dapp.com/design
The .iges and .step can be found from here: http://relativity.fi/jolla_toh/3dmodels/ (I'll add the DWTFYWT-license). Those were converted with FreeCAD from .stl back to solid models. I can of course provide the 123D Design file too if needed.
Those were converted with FreeCAD from .stl back to solid models. .
oooh there is mi problem.
The triangular STL is almost impossible to edit... this has now been gone to the STEP file too... I'm just heating my printer up.
EDIT: Previous stl was crap. this should be better.
--> either SC16IS750. Has 3.3V operation, but you'll need I2C levelconverter (e.g. PCA9517) and 1.8V regulator. Easier to interface to the 232 transceiver.
--> or SC16IS850L. Has 1.8V operation, no need for I2C level converter, but needs 1.8V regulator. and some tricks to interface to 232 transceiver.
