CAN is differential in the same way, the hardware support for CAN is vastly superior to RS485 from the perspective of software. Making the implementation much simpler. The issue with comparison to RS485 is packet size (still 8 bytes in CAN 2.0 And bus speed is limited to 1Mbit, where as a well setup RS485 can handle 12Mbit.by annodomini2 - Controllers
oly Wrote: ------------------------------------------------------- > out of intrest if i get the electronics can i > build any style reprap ie a darwin and a mendel i > ask so i know weather its a good idea to deviate > from the online designs. > I guess its more down to the firmware on the > electronics than anything is that correct ? Depends on your skills, you may want to cby annodomini2 - United Kingdom RepRap User Group
Would 1600bar in a highly focused jet be enough to cut thin sheet steel? (i.e. 1-2mm?by annodomini2 - RepLab Working Group
nophead those are cheaper than the motion control products units, you may want to stick them on the mendel BOM.by annodomini2 - United Kingdom RepRap User Group
The other benefit is when available the capability to run the Reprap from the SDcardby annodomini2 - RepRap Host
VDX Wrote: ------------------------------------------------------- > ... "Nitrous Oxide", also known as "laughing gas", > would have made my day > > Viktor Save it for the car !by annodomini2 - Plastic Extruder Working Group
SebastienBailard Wrote: ------------------------------------------------------- > annodomini2, that's true but not particularly > helpful. I took physics in the United States, so > I understand the perspective. > > chirdaki, if you do figure it out, could you write > it up on the wiki? > > Also, how is pipe sized down in Australia? What > about structural steel fromby annodomini2 - General
They're only 3.3v, don't know if they could be used for ICSP programming, plus they don't have RTS or CTS signals.by annodomini2 - Controllers
I didn't say don't use pointers, just avoid, where possible of course You are right though, MISRA states no function pointers, This is a useful point for inexperienced users, to point out (no pun intended) that there are different types of pointers.by annodomini2 - RepRap Host
grael Wrote: ------------------------------------------------------- > I wrote a cross assembler on an amstrad CPC664 > many years ago, to program 68HC11 via my custom > serial port, in assembler. I've done very large > programs in assembler, and certainly C is less > longwinded in comparison with assembler. Most of > it is going fine for me, but I've not yet got > ambitiousby annodomini2 - RepRap Host
Ahh, full step causes a different resonant frequency within the mechanics?by annodomini2 - Controllers
There's also Cortino Cortino The NXP devices are cheaper, and have a better pin layout, the STM devices with CAN (one of the reason's I'm looking at this device) are on the same channel as USB. which is badly thought out IMO.by annodomini2 - RepRap Host
The board designs are open source, you could take them to a local PCB manufacturer and have them made.by annodomini2 - Controllers
stephen george Wrote: ------------------------------------------------------- > Sorry to ask a daft question but what are the > benifits of 1 step > rather than 2 half steps? > > Do you get more speed ? reliability etc > > Stephen Speed the stepper drivers have a limited frequency response so at full step you can move the motor much faster than at half step.by annodomini2 - Controllers
GeertB Wrote: ------------------------------------------------------- > Using a web-based proprietary tools seems as far > from open source and GPL software as possible. The > Arduino environment uses GCC as compiler, and the > Cortex chip is supported by GCC as well. No need > for proprietary software. The main issue in > porting the Arduino environment and Wiring > languageby annodomini2 - RepRap Host
Because the arduino environment effectively maps i/o operations via a Hardware layer interface in software this is quite easy to do, you just replicate the environment for your target hardware. The problem comes in embedded systems when processes have been optimised for performance on a specific microcontroller. Which may cause compiler errors or runtime issues on the new target. I have an mbedby annodomini2 - RepRap Host
kkannan Wrote: ------------------------------------------------------- > Hi BodgeIt, > > I had such doubt and tried to reduce the feedrate > very low and the drift is still occurs. Obviously > the two motors are of different ratings and i > don't know the step angle of the printer motor. > After drawing a 1000 steps line with 16MM pulley, > it moved about 165MM and made mby annodomini2 - Mechanics
VDX Wrote: ------------------------------------------------------- (but here i need inert gas ). > > > Viktor For trials, little bottles of CO2 or CO2/Argon used by small welders as a suggestionby annodomini2 - Plastic Extruder Working Group
DKU-2's are straight USB cables, DKU-5's are usb to serial, one thing to note AKA in the DKU5's the chip is the 3.3v version DKU-5 Pinout Additionally, the RTS and CTS signals are not fed throughby annodomini2 - Controllers
May Help Migrating from Atmega644 to Atmega644pby annodomini2 - Controllers
I personally like the extra resolution this device potentially offers, with 1/4, 1/8, and 1/16 stepping modes.by annodomini2 - Controllers
Do TI have an A4983 replacement?by annodomini2 - Controllers
I'd be interested in seeing how you get on in comparison to A3979/A3977, as they appear to be less than half the price of the allegro parts here in the ukby annodomini2 - Controllers
BodgeIt Wrote: ------------------------------------------------------- > @trystanlea > > Sorry guys off subject question...Date: October > 24, 2009 05:37PM > > Have you any links to your (wind turbine and > energy monitoring stuff at a micro maker fair here > in Cardiff) > > I have a keen interest energy generation stuff > like Hugh Piggott's > > I didn'by annodomini2 - General Mendel Topics
There's already a thread for this in the fabrication forum.by annodomini2 - Reprappers
Simple linear ramping algorithms take up very little run time or RAM. Non-linear algorithms can be simple or evolve into raging beasts comsuming the entire scheduler period, depending on what is required.by annodomini2 - RepRap Host
Good spot, best person to answer this would be Zach, i'm guessing its depending on the type of crystal used.by annodomini2 - Controllers
Where in the world are you? Farnell have some in stock.by annodomini2 - Controllers
Something to look at for the future of printing circuits Xerox silver printingby annodomini2 - Controllers