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I'm nearing completion of a design that I would like to get made by Ponoko, and having trouble in getting a reasonable output method whereby I can place a bunch of bits within a Ponoko template.
I'm doing this with free tools, I also use Blender as my preferred modeller.
I've found that that the DXF exporter isn't reliable enough to produce a suitable cutting path for laser cutting, leaving the
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Grogyan
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RepRap Host
Thats how i'd do it too, then move the camera in what ever orientation you want to get the ideal rendered result
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Grogyan
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RepRap Host
This I think is the best place to get screws from, anyone here have much dealings with them?
Today, after work I nicked an M5 x 50 Cap hex bolt, and die tapped the whole thread, then chopped off the head of the bolt, after a bit of cleaning (may need to borrow the die tap again), plonked on a couple of washers and a few nuts with an M5 x 10 grub screw, (all taken from work, as my work place h
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Grogyan
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New Zealand RepRap User Group
Cheers guys, I found that MicoMetals don't have M8 rod but they do have 5/16, and with tolerances so close to M8, its good enough.
I've looked at EDL a number of times, and they just don't stock bolts (preferably cap head) smaller than M6. Does Ullrich Aluminum sell M5 or smaller bolts/screws.
One problem I have is that I got Vik to print out a set of bits for a Tamiya extruder, big problem wit
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Grogyan
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New Zealand RepRap User Group
They are left out, the last two pins are for modding the 1.2 mobo, by tapping off the 12v supply and hooking onto the Sanguino 1.0.
This is what I have done to save on power points, as the 5v rail on the 1.2 mobo isn't hooked onto a 5v on the sanguino 1.0
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Grogyan
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Controllers
I am using Firefox 3.0.13, under XP pro 32bit
Using Bit Defender as my vrus scanner and Comodo as the firewall.
parts.rrrf.org Has indeed been reported as an attack website, and its only done so recently, ie in the last 4 weeks
The problem seems to be davtraff.com/ , but I could be wrong, but the time stamp that Google produced, coincides with all the spam that we were having on a daily basis
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Grogyan
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General
I have a V1.2 board, Wire Wrapped to a BasicX, as I didn't get my Sanguino up and running till quite recently.
Are you using your own code?
If you are you need 3 pins wired, direction, step and ground, just send a bunch of high and low pulses (eg 400 pulses) to turn the motor
Did you select full or half step?
There is a few pads laying idle, just make a solder bridge between the centre pad and
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Grogyan
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Controllers
Well, I forgot that camera shops sell them, so I went round to kodak and asked them.
SD reader ~$25
SD/MicroSD ~$35
Its good to know they have em', so until my repstrap is built they are staying on the shelf. I'll experiment with that feature later on
Maybe one day the mobo will have USB hosting capability for flash drives, until then I guess were all have to accept the SD card format.
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Grogyan
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General
I have a Nokia phone, that uses micro SD. Though mine is from SanDisk, and came with no adapter. Did find a few places that sell micro SD's with adapters, they are as hard to find as places that sell SD readers.
I have not much against using SD cards, I feel as though that with my example, it can be difficult to find and acquire SD card readers/adapters, and after all the running about i'll do
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Grogyan
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General
I'm sorry, but i've searched locally, and they are available, but not cheap.
Good to see that they are very cheap in Germany, but its a long bus trip to go for a ~$2 reader, as I live in NZ
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Grogyan
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General
Cool.
I know its not easy, just more convenient to buy a flash drive, plop on some stl files and print, without having to try and find a device to write an SD card.
Its easy to buy a reader/writer here in NZ, Aussie, UK and US, I just don't know about everywhere else.
Its even easier to buy a flash drive just about anywhere.
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Grogyan
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General
My last post in this topic.
The fault all along was a dud chip, and the 100 Oms of resistance was internal of the Atmel 644p that I got, lucky me, I get a dud out of thousands.
Even with the Chip removed, and using a meter directly onto the chip the 100Ohms between the Rx and 5V lines is very obvious.
Reason why I missed it before, was simply that I was listening to a beep from my meter, assumi
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Grogyan
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RepRap Host
I plugged in the Sanguino V1.0 board in today, and with the ATX power plugged in and the board turned off, the power LED on the Sanguino V1.0 glowed, measuring approx 3.5V.
After some hours I find that there is ~100 Ohms of resistance between the Rx and the 5VSB, but still don't know whats causing it
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Grogyan
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RepRap Host
I know from talking with a friend who uses USB (slave mode) that you can strip a lot of the stuff out.
Forrest Higgs Wrote:
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> Why not have both on the board and let people
> populate whichever one they can get parts for
> easiest?
This is a good idea, plug in SPI boards, that way, you could choose to have MMC or SD or USB flash
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Grogyan
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General
Nope, they all show fastenings larger than M6, and nothing came up about rods.
I did do another search as "Socket Cap Screw", and while I did find a place that sells M5 x 50 screws, I didn't find any detals as to how far up the shaft the threads go, and they don't sell M8 rods
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Grogyan
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New Zealand RepRap User Group
A very quick browse shows taht a similar USB card reader costs ~NZ$25 not counting the SD card, where as buying an adapter chip like the Max3421E costs ~NZ$20
plus support bits (like an actual USB connector and 12MHz crystal), and its about the same.
Its more of convenience to the other person.
A guy has managed to make a breakout board
And because it uses SPI (on the MAX3421E), it more about
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Grogyan
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General
I've started a debate with Zach about whether the Sanguino motherboard should support USB to read a flash drive over reading from SD card.
Thumbs up for you would prefer having the mobo read a USB flash/thumb drive
or
Thumbs down for keeping the SD card slot
Personally I don't have a device which I can attach to my computer to write files to an SD card so this would be an unforeseen extra e
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Grogyan
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General
Seeing as I have a DIP Sanguino board anywway, that appears to be working (ie I can download and rund stuff from the Arduino IDE ok), i'll test every pin then hopefully if all goes well, i'll use that as it is supported by the mobo, till I can procure replacement bits from DigiKey.
I'll take the crystal and 644p TQFP
One thing I come to know from talking with my mates at RoboNZ, is the LadyADA
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Grogyan
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RepRap Host
I've been hunting around for a few things, and having some difficulty in finding them.
I did find a pot of fire cement, available from Mitre10 Mega, though I have easy access to kapton tape at work.
What I am having trouble in finding is,
8mm dia solid rod
Various screws and bolts not usually sold by hardware stores like M5 x 50 bolts
Where would be a good place to go to get these in Aucklan
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Grogyan
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New Zealand RepRap User Group
That is a good plan, then you can build up the electronics while you wait for the RepRap parts.
I am finding that it takes the USPS about 3 weeks to get a package sent over, I use priority mail, less expensive than the international express, but you still have (pathetic) parcel tracking.
What are you guys doing about the non RepRapabble parts?
Heater Barrel
Thermal Barrier
0.3mm - 0.5mm Nozzles
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Grogyan
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New Zealand RepRap User Group
I'm thinking of maybe getting the non reprappable parts, like the thermal barrier, heater barrel and nozzles made by an enginnering company here in Auckland, there are a few.
Just wondering if anyone else would want to get a set of these parts, then we can determine if its viable enough to get a whole bunch of them made to reduce costs per person for these bits. Assuming of course that you don'
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Grogyan
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New Zealand RepRap User Group
Is there enough of the wedge design semi finalized to start building them?
There are only a few files on the SVN, would it be possible to have the rest of the AoI/STL files on SVN?
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Grogyan
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New Zealand RepRap User Group
Thanks Grael,
I've got some friends who use AVR's in their business, and have got them to have a quick go with their programmer's, just to be sure, thing is dodgy on my side.
I'm also looking at replacing my BasicX chip for my robot with another that fits within the same form factor and has at least 8 ADCs, i'm not aware of that chip being packaged in roughly the same form factor as the BasicX.
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Grogyan
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RepRap Host
RepRap features on RobotCast, a new site about robots.
Just look for episodes 11 and 12
What got me into starting my Rep(st)Rap, is the need to make custom parts, for which you don't necessarily have access to a lathe and a mill, or even a drill press. Specifically for making robots at home.
Plus I took some videos of Vik Olliver at RoboNZ a couple weeks back
Much Gratitude to Vik for doing t
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Grogyan
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General
Hello Conroy,
I live in Auckland too, and part of the RoboNZ group here.
Conroy Wrote:
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> Hay kiwis
>
> I'm interested in building a darwin but would like
> to know a few thing before i start
> 1. how much does to cost altogether ?
That depends on how much you are willing to spend
> 2. am i able to get the mechanical darwi
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Grogyan
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New Zealand RepRap User Group
Update.
Got a compatible USB to TTL programmer from Tim Carr of www.mindkits.co.nz, which is identical to the one sold by SparkFun.
I managed to program 1 of 2 of my Sanguino boards. I got two boards, one Motherboard V1.2 and one Sanguino V1.0 board.
The Sanguino V1.0 programmed no problem, however my V1.2 motherboard doesn't program, both setups are approximately equal, ie one runs off a 12
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Grogyan
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RepRap Host
Your funny Grael
Grael's post was lost with the server being down)
After this weekend i'll be trying to find a USB to TTL cable that is compatible with the Arduino, as I am not getting anywhere with the propeller plug.
I talked with Tim from MindKits on Friday night, he came around with the presentation from Vik at the RoboNz group, and they do have such an adapter.
In the mean time I am think
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Grogyan
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RepRap Host
The FT232RL, is plenty big enough to solder, even by hand, and it sure would be far easier to just plug in a normal USB cable than a specialized cable
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Grogyan
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Controllers
Are the stepper motors getting hot?
Maybe drawing too much current and turning themselves off, a feature of those devices.
Fix, adjust the current on each stepper driver so that the motor will rotate smoothly, and not get hot.
Grogyan
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Grogyan
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Controllers
