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I have the Gen3 electronics (old I know...my RepRap didn't get much attention for a few year) and am trying to use them with the Printrun host software. I have uploaded the 5D firmware to the Sanguino motherboard, and am able to connect to it with Printrun, but it isn't behaving properly. When I click an arrow to move the axis manually, it will move the correct distance and stop, but if I try to
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pingiscoolest
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General
Sorry to open an old thread but I am having the same problem. The green light on my programmer lights right up when i plug it in, but when I click burn bootloader in the arduino IDE I get the error about rc=-1. I have tried it on 3 different computers now, 2 running ubuntu and one running win xp. The one running xp however just wouldnt run the arduino IDE for some reason, it is a UMPC so I guess
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pingiscoolest
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Controllers
And here is another post since i forgot to click follow thread and i dont know how to follow this without posting another message
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pingiscoolest
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Texas, Dallas RepRap User Group
I'm in houston, still working on my repstrap but hopefully will be done soon, maybe i can hook you up once im finished...
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pingiscoolest
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Texas, Dallas RepRap User Group
I get it on Firefox 3.5.2, running the windows 7 RC
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pingiscoolest
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General
I just resumed work on my RepStrap, and when I went to the RRRF, to look at the generation 3 electronics, I got a browser warning saying it was an attack site. I have not been following RepRap for the last few months, but When I last checked, makerbot was up, but the RRRF was also available to buy parts from. If the RRRF is no longer being maintained, and I should not go there to buy parts that i
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pingiscoolest
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Administration, Announcements, Policy
I'm surprised it got past the CAPTCHA, anyway that makes more sense LOL. Thanks
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pingiscoolest
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Controllers
Thanks for the info Jeff ill check into it
EDIT: Now that I have checked into it I guess I will be sticking to blender, though I probably qualify for the educational version ($195), that is about $185 out of my price range (I have a very low budget). Anyway thanks for the info.
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pingiscoolest
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Mechanics
Kind of unrelated but, What CAD did you use to design this? It looks much better than anything I can seem to make in AOI or Blender (though I know blender has this functionality I just dont know how to use it). The extruder looks good to me but I probably dont know what I'm talking about .
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pingiscoolest
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Mechanics
No Problem thanks for the help!
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pingiscoolest
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Mechanics
OK thanks either way its more correct than my method of guessing .
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pingiscoolest
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Mechanics
Thanks for the explaination Corwin, when you said "That would be enough force to build 250PSI on a piston with just under 1/10 sq. inch cross section", did you mean with the 1/4 20 rod I had mentioned or without it? Sorry if this is an obvious answer.
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pingiscoolest
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Mechanics
Yes that is a good Idea Wade. I think Forrest had the same idea in one of his posts. His idea if I remember correctly was to use an air compressor to get the right amount of pressure though I dont know of an aircompressor that can output 250 PSI! I am not sure how to do the math here do you think this motor could handle it? I am not sure how to convert between the torque of 2.853 kg/cm and the f
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pingiscoolest
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Mechanics
Well the Step Genie has an enable pin just cant figue out how I would activate it with the arduino. I am not a firmware coder so I dont know how to add this feature to the arduino firmware.
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pingiscoolest
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Controllers
IT WORKS!!!!! After many hours of rewireing and troubleshooting my stepper motor controller finnaly drives a full size stepper for the first time!!!!! Now my next problem is my powersupply is quite lacking in power (2 phases at once per stepper at 1.3 amps phase=2.6amps per stepper=7.2 amps total, my power supply maxes at 5 amps oops ), I guess I need a bigger and better power supply... anyway th
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pingiscoolest
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Controllers
Not sure what is the part number but it says on the front of the Transistor
f1j09aa
fdl
8778
The first F is a very strange looking F, maybe a symbol of something that resembles an F.
Wow thats a pretty big mistake, don't know how I pulled that one off . A google search for those lines turned up nothing useful , Thanks for the help Nophead!
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pingiscoolest
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Controllers
Wow another thing I didn't know about ABS. I guess I should have looked into this a little more, I will be needing more torque than I expected. Thanks for all the info I will continue working on this, if it doesn't work as an ABS extruder (I am reluctant to use CAPA it is expensive, almost £20 ($30) a pound almost 4 times what ABS cost from makerbot) then maybe it will make a good wax or support
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pingiscoolest
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Mechanics
Ok here it is thanks for the help.
I am not sure exactly what part number it is I bought it from the step genie site (http://www.stepgenie.com) it is the second one the one that cost $.60 each. I have the middle pin wired to the OUTPUT Pin of the Step Genie, the pin on the left when viewed from the side with the metal plate wired to the Ground and the pin on the right when viewed from the same si
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pingiscoolest
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Controllers
I cant say I've ever melted a breadboard... you should be proud Cris =-)
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pingiscoolest
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Controllers
I am not quite finished with my repstrap, and I am using unipolar steppers but I plan on running mine in High torque mode (AB, CB, BD, DA) I am not sure if this i s possible with a bipolar stepper though, but it gives me the resolution and speed of a full step with extra torque. The resolution is no problem because I am using 1.8 degree steppers with 1/4 20 lead screw so I expect to get high res
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pingiscoolest
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Controllers
wow um sorry guys Im feeling pretty stupid right now. I was applying +5 volts which wasnt stepping it because the input pins float high. I now am able to step the Step Genie by appling ground to the step pin. now my problem however is that on my when I have +5 volts on the gate of the HEXFET, I still have a fairly high resistance between the drain and ground, enough that connecting the positive l
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pingiscoolest
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Controllers
well I was going to use fireplace cement to hold everything together so that shouldn't be a problem. I guess I will be using metal for the top plate I happen to have 2 hairdryers with broken motors so maybe I can use that. Wow 240C is really hot! I guess I was thinking 240F when I read everything else that mentioned extruder temperature. Big difference!! About 270F difference! anyway I made a qui
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pingiscoolest
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Mechanics
well I guess I will start to build a prototype . probably will be made of pvc pipe and wood, but that will have to wait till tonight. I will probably need some nicrome wire for almost any extruder I make so I will go ahead and order that soon. And since I dont have any plastic to extrude, I guess my prototype has no need to be heated.
Thanks for the advice!
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pingiscoolest
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Mechanics
Sorry I guess I wasnt clear I did not measure the voltage on from the 12 volt line to the HEXFETs I measured it from the Output Pin to the ground, is that what you meant? I thought I had the HEXFETs wired right , I guess I'll check again... anyway thanks for all the help.
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pingiscoolest
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Controllers
Oh hey David I recognize your avatar, I use the full size pic in a RepRap calendar for a computer class, hope you dont mind .
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pingiscoolest
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Mechanics
hey that worked.. I think... Thanks David!
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pingiscoolest
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Mechanics
Well as for the surface tension that might require some experimentation but air does not require large holes at all and maybe it could escape just through the small gap that would probably be inevitable between the circular plate and the pipe. If holes were needed I am not sure how small they would need to be but if some material escaped as long as it needed to be heated to flow then it might jus
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pingiscoolest
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Mechanics
This seems like a good design for an extruder to me, I have attached the blender file, and the render as a JPG, it seems to me this could extrude a wide range of materials, including plastic pellets, wax (support material?), paste, or almost anythng that can be forced through a hole heated or not with a little pressure. The idea is that the largest cylinder is a piece of 4 inch metal pipe wrapped
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pingiscoolest
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Mechanics
Well I am attempting to use the Step Genie stepper motor controller to controll my RepStrap, but I am having issues with it. I am using the schematic on the step genie website and when I test my circuit on either a breadboard or on my stripboard without the HEXFETs attached I get voltage on the appropriate pins at the appropriate times (I can only test this triggering the circuit manually not be
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pingiscoolest
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Controllers
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Pages: 123