Answering my own post, I found 4.5mm ball-chain at which seems to be a great fit for VIk's ponoko cogs. Daz.by Daz - New Zealand RepRap User Group
Has anyone found a source for appropriate ball-chain in Wellington (i.e. for Vik's ponoko Z axis cogs)? I'd like to get my reprap build underway again, and finding the chain would be a big step forward. Cheers, Daz.by Daz - New Zealand RepRap User Group
Hey Graham, Sounds like a nice approach. I'm using an LPC2148 dev board as my controller. Plenty of I/O pins, ADC, I2C, SPI, 512KB of flash and 128KB of SRAM. The dev board is an Olimex from sparkfun (http://www.sparkfun.com/commerce/product_info.php?products_id=676) which is a lot easier to deal with than trying to solder the chip by hand (at least for me that is). I'm running the steppersby Daz - New Zealand RepRap User Group
I found Vik on IRC, and he was able to provide Ponoko-cut pulley parts (cheers Vik!). I've picked up some chrome-plated brass 4.5mm ballchain via trademe so I can get back on building. My attempt at a PCB for the stepper drivers hasn't working so well and I'm currently debugging it.by Daz - New Zealand RepRap User Group
Mine is sitting at about 50% build (bitsnbytes resin model). I got stuck because I didn't realise that the bitsnbytes model changed the belts to metric T2.5mm. I have no problem finding MXL belts (e.g. they're used as the tail drive belts for a number of RC helicopters), but I can't find T2.5mm belts here. My plan at the moment is to use Vik's laser cut design to get just the pulleys from pokby Daz - New Zealand RepRap User Group
I though these guys looked promising - haven't contacted them yet but the stock on their website looked pretty comprehensive.by Daz - New Zealand RepRap User Group
Hey guys, I noticed some comments in the GCode parser module (process_string.pde) about performance: //we do it like this to save time. makes curves better. //eg. if only x and y are specified, we dont have to waste time looking up z. and on reviewing the code I realised that the parser is rescanning the instruction string several times (i.e. whenever has_command() is called, and again for sby Daz - RepRap Host
Hey all, maybe a general NZ forum would be better? (I'm in Hamilton). I received my rods and M8 studding today, and a few of the electronic components so I can get started with the stepper controllers, pwm controllers, and the main mcu. Ian (http://www.bitsfrombytes.com) is supplying moulded RP parts and extruder hardware with reasonable shipping from the UK. I'm planning to work on the steppby Daz - New Zealand RepRap User Group