Re: Folger Prusa i3 Kit from ebay November 24, 2014 04:43PM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 24, 2014 04:59PM |
Registered: 11 years ago Posts: 18 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 04:34AM |
Registered: 9 years ago Posts: 1,011 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 10:28AM |
Registered: 9 years ago Posts: 26 |
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mikez104
This may be a silly question but can someone tell me where these bearings go?
Re: Folger Prusa i3 Kit from ebay November 25, 2014 11:31AM |
Registered: 9 years ago Posts: 110 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 11:53AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 12:02PM |
Registered: 9 years ago Posts: 110 |
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Waltermixx
I tried random hairspray with crappy results... the garnier is great...
you still have to get a good first layer down, I use .3 for the first layer and .2 for all others...
and you must still make sure you have leveled your bed properly
Also another thing to keep in mind, sometimes long thin things will warp no matter what,
you might have to add those little tabs in the corner, and then break them off.
Re: Folger Prusa i3 Kit from ebay November 25, 2014 04:52PM |
Registered: 9 years ago Posts: 110 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 06:14PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 10:40PM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 10:46PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 11:15PM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 25, 2014 11:16PM |
Registered: 9 years ago Posts: 110 |
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Waltermixx
Sorry forgot to post temps...
My bed is at 100.
my extruder is between 225 and 230 usually
seems to work well... if overhangs are an issue or look like a challenge, i drop the temperature a bit :0)
Re: Folger Prusa i3 Kit from ebay November 26, 2014 10:17AM |
Registered: 9 years ago Posts: 134 |
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louspinuso
Quote
Waltermixx
Sorry forgot to post temps...
My bed is at 100.
my extruder is between 225 and 230 usually
seems to work well... if overhangs are an issue or look like a challenge, i drop the temperature a bit :0)
Ok, I'll try using 100 for my bed with Garnier Fructis hairspray tomorrow. I loctited my extruder hot end tube to the aluminum cooling block it was coming loose from and I hope the solves that issue permanently. I fixed the wiring for the thermistors with some pc internal audio cable similair to this, [www.computercablestore.com] but I have 3 black connectors (so I guess it's a splitter). I was able to pop a pin and wire out of one of the other black connectors and securely fasten it in a different position so that I would have 4 wire coming out and I have all 4 of my thermistor wires connected to that and it plugs in perfectly (just keep them in the right orientation and pairs). Tomorrow, before I print anything, I'm going to have to check my vrefs on my X and E pololu drivers cause my X motor is getting ridiculously hot and so is my extruder motor (though that one is directly connected to something at 225c so...) I'll make sure that it's at the recommended 0.33 and 0.35 respectively and adjust from there if they are. I'm hoping that tomorrow is the day that I get a full large print to complete without any issues.
Re: Folger Prusa i3 Kit from ebay November 26, 2014 11:38PM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 26, 2014 11:45PM |
Registered: 9 years ago Posts: 110 |
Stupid question, did you set your power supply to 110? It comes set to 220 by default.Quote
mikez104
Argh
So I finish putting everything together and plug it in and get nothing. I check the output of the power supply and get nothing. I disconnect the two green incoming power connectors going to the board and the power supply puts out 12.4 volts. The Arduino works and I was able to load the Marlin code but I can get nothing from the RAMPS board. Here are some pictures. Can anyone see anything that I may have dorfed up?
Re: Folger Prusa i3 Kit from ebay November 27, 2014 01:38AM |
Registered: 9 years ago Posts: 110 |
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louspinuso
Stupid question, did you set your power supply to 110? It comes set to 220 by default.Quote
mikez104
Argh
So I finish putting everything together and plug it in and get nothing. I check the output of the power supply and get nothing. I disconnect the two green incoming power connectors going to the board and the power supply puts out 12.4 volts. The Arduino works and I was able to load the Marlin code but I can get nothing from the RAMPS board. Here are some pictures. Can anyone see anything that I may have dorfed up?
Re: Folger Prusa i3 Kit from ebay November 27, 2014 02:06AM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 02:29AM |
Registered: 9 years ago Posts: 57 |
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louspinuso
Quote
louspinuso
Stupid question, did you set your power supply to 110? It comes set to 220 by default.Quote
mikez104
Argh
So I finish putting everything together and plug it in and get nothing. I check the output of the power supply and get nothing. I disconnect the two green incoming power connectors going to the board and the power supply puts out 12.4 volts. The Arduino works and I was able to load the Marlin code but I can get nothing from the RAMPS board. Here are some pictures. Can anyone see anything that I may have dorfed up?
And another question, you say you're measuring 12.4 volts out of the power supply and I see that you have something else plugged into that green jack going to the ramps board which I'm assuming is a fan. Does that fan spin? And you should probably adjust the power supply to give you 12 volts too.
Re: Folger Prusa i3 Kit from ebay November 27, 2014 03:03AM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 05:16AM |
Registered: 9 years ago Posts: 1,159 |
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mikez104
Ok, so I've been thinking it sounds like a short and the power supply is going into self preservation mode and cutting the output. So I start probing around with the ohm meter and find that after disconnecting every wire and pulling all the drivers off the board, the lower power connector is reading a short across the input.
So I start inspecting the board looking for a solder bridge or something. I see some decent sized diodes that look like they may be for reverse polarity protection? Then I see the one right by the input looks like it was installed backwards.... According to the stencil on the board, it should be going the other way. Could someone please take a look at their board and verify this? The white stripe on the diode should be towards the right, no? Gads, its almost 3am. I'm done for the night.
Re: Folger Prusa i3 Kit from ebay November 27, 2014 07:30AM |
Registered: 9 years ago Posts: 110 |
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dougal1957
Quote
mikez104
Ok, so I've been thinking it sounds like a short and the power supply is going into self preservation mode and cutting the output. So I start probing around with the ohm meter and find that after disconnecting every wire and pulling all the drivers off the board, the lower power connector is reading a short across the input.
So I start inspecting the board looking for a solder bridge or something. I see some decent sized diodes that look like they may be for reverse polarity protection? Then I see the one right by the input looks like it was installed backwards.... According to the stencil on the board, it should be going the other way. Could someone please take a look at their board and verify this? The white stripe on the diode should be towards the right, no? Gads, its almost 3am. I'm done for the night.
Definitely the wrong way round!
Doug
Re: Folger Prusa i3 Kit from ebay November 27, 2014 10:34AM |
Registered: 9 years ago Posts: 61 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 12:14PM |
Registered: 9 years ago Posts: 9 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 12:48PM |
Registered: 9 years ago Posts: 57 |
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ron22
Based on the silk screen on the board in backwards. It is possible the silkscreen is wrong and they did it on purpose. Based on the fact it is not working I am betting that is the problem.
If you are able I would unsolder it and put it in the other way and see if it fixes the problem.
Re: Folger Prusa i3 Kit from ebay November 27, 2014 04:05PM |
Registered: 9 years ago Posts: 25 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 06:04PM |
Registered: 9 years ago Posts: 57 |
Re: Folger Prusa i3 Kit from ebay November 27, 2014 06:09PM |
Registered: 9 years ago Posts: 57 |
Yeah, I saw that after I hooked it up but they seem to work fine with all three wires. You just have to make sure to put the green wire towards the edge of the board. I recorded a bunch of video as I built mine and will be editing it together and uploading to utube. I did it a bit different than others I have seen. I don't know about you but I don't need to see someone turning a screw or fiddling with stuff for a half hour. I just recorded steps of what to do and what it looks like and any hurdles I came across.Quote
Booda
Mikez104
[youtu.be]
6:40 mark Shows that only top two pins used for end stops. I am new to this but noticed on your pics using all 3 pins.
Is yours the way I'm supposed to hookup? I'm just reading and watching everything I can on prusa i3 builds. Maybe I'm reading and watching too much?
I have ordered my kit just waiting for to ship; this thread will be my main reference. Great info here
Re: Folger Prusa i3 Kit from ebay November 27, 2014 07:03PM |
Registered: 9 years ago Posts: 208 |
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mikez104
Well, that was it. One would think I would have actually checked to see if the diode was good before I soldered it back in. I plugged it in again and nothing. I was like really? Then I unsoldered one side and checked it and yup, it was a dead short through it. I had one close in value and soldered it in and it fired right up.
I had to go in and invert the Y axis but I still cant get the screen to work... Not sure what is wrong there. I used dooms101's config.h file and I thought it was enabled in there.
Re: Folger Prusa i3 Kit from ebay November 27, 2014 08:20PM |
Registered: 9 years ago Posts: 208 |