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Heater stays on even when I say off (ramps, tonokip, repsnapper) - 13 years ago

Hey everyone I'm making the big jump from Gen3/repg to RAMPS/repsnapper to make producing full kits more efficient on one of my prusa machines . I've found during testing that if I heat up my extruder in repsnapper it's all fine. But then when I turn the extruder heater off, it doesn't cool down properly, it drops to about 125C and just sits there, but if I physically detach the heater wires fro

by letsburn00 - RAMPS Electronics

Re: Part Buy in - 13 years ago

I've updated my post it with prices and photo link

by letsburn00 - Australia, Brisbane RepRap User Group

[AUD] complete prusa kits or complete assembled machines - 13 years ago

Hi I'm in Perth and I sell complete Prusa's. either as a kit or fully built. All will be printed in clear PLA, except for the wades gearing, which is laser cut to save time. Included is RAMPS electronics, and a .5mm nozzle. I am using a properly manufactured aluminium T2.5 pulley with T2.5 belt for maximum resolution(plus to save all the headaches with pulleys that people have). Current prices

by letsburn00 - Plastic RepRap Parts for Sale

[AU] Prusa mendel . Either as kit or complete and built - 13 years ago

Hi I'm in Perth and I sell complete Prusa's. either as a kit or fully built. All will be printed in clear PLA, except for the wades gearing, which is laser cut to save time. Included is RAMPS electronics, and a .5mm nozzle. Using a properly manufactured T2.5 pulley with T2.5 belt for maximum resolution. Current prices are $900AUD for the complete kit, $1250AUD for the complete and tested machi

by letsburn00 - For Sale

Re: Part Buy in - 13 years ago

I sell full prusa kits, I'm in Perth but slow parcell post isn't that expensive across oz. PM me if you are interested. (end shameless plug) EDIT: photos here Summery of prices etc here :

by letsburn00 - Australia, Brisbane RepRap User Group

Re: Best Electronics for Mendel - 13 years ago

I've used the makerbot electronics for a few of my machines and things generally go pretty well. I've worked with a guy who used the techzone and he ended up having to replace half the boards because they blew up on him. I'm currently messing around with RAMPS, working on making the big jump forward. -Peter H

by letsburn00 - Australia, Melbourne RUG

Re: PARTS WANTED - 13 years ago

I'm in Perth and I sell full prusa kits. pm me if you want me look into it. -Peter Hillier EDIT: photos here Summery of prices etc here :

by letsburn00 - Australia, Melbourne RUG

Re: Looking for a RepRap in Malaysia - 13 years ago

I'm here in australia. not far from from malaysia(ie cheaper shipping) and I sell full complete and working prusa mendels with electronics. or I could sell it to you as a kit sans electronics. My machines are best suited for the gen 3 electronics, since I've been using a DC printruder I based designs for my extruders to avoid difficulties.

by letsburn00 - Wanted

Re: 3d systems buy bits from bytes - 14 years ago

Being the massive cynic that I am, I'm expecting BfB's future research to go almost entirely closed source and the price to go up, with a tendency for closed off feedstock. Lower pricing will be oriented almost entirely to makerbot and the Chinese competition. But give how much makerbot In the last few months has been going nuts with R&D, this might enough, though now need to compete against

by letsburn00 - General

Re: Perth, Australia - 14 years ago

The artifactory (Perth's local hackerspace) is having it's fortnightly reprap night, and as of june 7th 2010 we should have the artifactories own reprap running and printing. The current one was made with a very wide bore nozzle in order to not push the machine too hard. All of it's printed parts were made with a BfB Darwin V 2.0.1 reprap. So if you're coming around on the night (the new scienti

by letsburn00 - Australia, Perth RepRap User Group

Re: Challenges ahead - 14 years ago

I think that the first place to attack the lowest hanging fruit for the biggest change, and I think that this is to replace the fasteners (at first some, then all). Some sort of strong snappable fastener is going to really get things moving and once we get the problem solved, it will reduce the non reprapable parts by a huge amount.

by letsburn00 - Kartik M. Gada Humanitarian Innovation Prize

Re: Australian Suppliers - 15 years ago

I gotta say Ausxmods is fantastic. I'm using them again for all my future mendel steppers.

by letsburn00 - General

Re: Errors in Mendel STL files - 15 years ago

Has anyone made a collection of mendel files that are already flipped, because I've found most of the bigger parts are upside down.

by letsburn00 - Reprappers

Re: Wall Street Journal Article - 15 years ago

I've got a feeling makerbot probably wouldn't need to worry about capital investments for a while now (I would have offered them a few grand myself if I'd thought I had a chance of them taking it). If this means there are always plenty of electronics in the store it makes me happy.

by letsburn00 - General

Re: Illustration of skins for my Darwin - 15 years ago

The X on the side could be replaced with a large metal version of the replicating machine warning logo, which is pretty simple to reproduce.

by letsburn00 - Reprappers

Re: Where is Mendel??? - 15 years ago

The old info for builds can be found The exact specification is that the darwin runs on 3 NEMA 23 steppers (with 1 nema 17 for the gen 3 extruder). And the mendel uses 4 nema 17's. Nema 23's are more powerful (and heaviers and more expensive) than Nema 17's. I've got both and the difference is pretty amazing (My darwin's steppers are about twice the size of the 17's i'm using to run my under co

by letsburn00 - Reprappers

Re: Printing mendel pulleys and other difficult parts - 15 years ago

Wade: any reccomendations on the spec of the pulleys, because I agree that the pulleys are probably the most important part when it comes to resolution of the piece.

by letsburn00 - Reprappers

Printing mendel pulleys and other difficult parts - 15 years ago

I'm printing off my hackerspace's mendel, this weekend has been frame weekend among other things. So far the main parts that have been giving me problems have been the pulleys etc(though getting m3 holes to print correctly is also a bit of a problem). I've found that my machine simply doesn't have the resolution to print these correctly and instead of being a circle with teeth it comes out as a c

by letsburn00 - Reprappers

Re: Help with 5D firmware? - 15 years ago

Ok, I rechecked the system and got the fresh wiring in( for the D9 and D10 there are 3 ports, I've plugged into the one that isn't labelled + or -. Also, it seems that the ports for scl and sda are all the same). Final results were: I got some sort of signal to the extruder board. Using the reprap host software I was able to tell the heater to turn on (though this made the entire system turn off

by letsburn00 - RepRap Host

Re: Help with 5D firmware? - 15 years ago

Using this I can get the XYZ axis working ok. It's my extruder that I can't seem to get working. I've not plugged a stepper in, but I know what a stepper running looking like when it's running (ie the lights in the motor section will go nuts)

by letsburn00 - RepRap Host

Re: Help with 5D firmware? - 15 years ago

What host software is usable? I've tried installing the 5D firmware onto a set of Motherboard and extruders and can't talk to it.

by letsburn00 - RepRap Host

Re: G3 Extruder controller V2.2 Stepper/Thermocouple firmware - 15 years ago

I wanted to try using adrians, but I can't get the 3D to 5D script to work(skeinforge is great once you figure the thing out). I'm a bit of a dunce with php and couldn't work out how to run it. I set up an XAMP php server on my system and couldn't run the thing to input.

by letsburn00 - RepRap Host

Re: Experimental PID Temperature Controller - 15 years ago

I use a combination of 2 5 Watt ceramic resistors and fire cement (all wrapped up in PTFE tape) for my rebuilt BfB extruder(it's hard to find insulated nichrome in Australian electronic stores). Normally if it was running at room temperature I would need about 10 seconds before it started to show any effect in repg and (ie the lag between the ceramic heaters and the thermistor is pretty big) so m

by letsburn00 - RepRap Host

Re: G3 Extruder controller V2.2 Stepper/Thermocouple firmware - 15 years ago

I think Adrian's and Zach's have diverged a bit. From what I can see the biggest difference is that more processing occurs on the motherboard for adrians firmware vs Zach's. This is most obvious in that thermistor values etc are all changed on the motherboard instead of the extruder. I'm going to have a go at transplanting adrians stepper control codes over to Zach's firmware because I'm not sur

by letsburn00 - RepRap Host

Re: Starting host software - 15 years ago

/dev/ttyUSB0 usually is what it's set to if it is a linux OS. I recommend going into device manager (in system) and looking through you COM ports to see which one it's plugged in on. Another great way to find the right port is to boot up the arduino installer, it tends to find the port that the TTL cable is plugged into pretty fast.

by letsburn00 - RepRap Host

Re: What does orbiting do? - 15 years ago

From the skeinforge help files (in the cool section) "The important value for the cool preferences is "Minimum Layer Time (seconds)" which is the minimum amount of time the extruder will spend on a layer. If it takes less time to extrude the layer than the minimum layer time, cool adds orbits with the extruder off to give the layer time to cool, so that the next layer is not extruded on a molte

by letsburn00 - Plastic Extruder Working Group

Re: Z axis - ARRRRRR - 15 years ago

yeah I saw that design. The problem is that I have my reprap on a desk in my room and there is no spot that I can attach a raised spindle to.

by letsburn00 - Mechanics

Re: Z axis - ARRRRRR - 15 years ago

It felt great to get it to extrude and print. I almost threw the whole thing out the window a few times because I couldn't get it to work properly. But it works fine now. The only real problem I've been having has been the screw making the filament getting all twisted(as it goes in the remaining filament gets twisted around and around), this caused a jam when I left the extruder running without

by letsburn00 - Mechanics

Re: I'd like to ask about societal implications for a sec... - 15 years ago

The pre-prototype AK47 was made in a train yard machine shop in WWII. I think that really you can basically get all the basic weapons that you want already with a machine shop if you really really want to and are willing to spent a very long time to get some basic weapons. The Current middle eastern wars have proved nothing if not that you can do some serious damage with little more than a huge a

by letsburn00 - General

Re: G3 Extruder controller V2.2 Stepper/Thermocouple firmware - 15 years ago

I've got the same problem. I'm printing a pinch extruder(along with all the other parts for a new machine) and still can't find parts for the gen 3 electronics. There is a link to the 2nd gen electronics and how to set them up, but given the seperated controllers I'm not sure where to find the code.

by letsburn00 - RepRap Host