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Re: Annyoing extruder controller problem - 16 years ago

After checking everything again and again I got rid of my first extruder contorller, heater and thermistor... No idea at all where the problem comes from... I soldered another PCB and did the heating again... I changed the thermistor too... Now, everything works fine I even did my first printing, yay! Thanks anyway, Chris!
by Satuna - Controllers

Re: Stratasys and Dimension machines - 16 years ago

Ambient pressure does not affect the fluidity according to my knowledge. When I was at the tradefair where I saw the machines I asked the same thing and they said the envelope is not pressurized. Only the temp is what they change in the envelope which is important for final precision.
by Satuna - General

Annyoing extruder controller problem - 16 years ago

Hi, I am in the middle of calibrating my system, but a very annoying thing does not let me go ahead... The whole thing started with when I killed my extruder PIC for the first time. As other suggested I programmed another PIC which worked fine and software read temp correctly... And then when I connected the heater it worked for a few minutes then suddenly the temp dropped down to -47 degrees Ce
by Satuna - Controllers

Stratasys and Dimension machines - 16 years ago

Hi, Two days ago I visited an exhibition on injection molding machines where there was a stand for Stratasys and Dimension too. I was amazed by their speed as my reprap is far slower :-)) No worries, we will catch up... By the way, anyone knows if its possible to use different materials from ABS, PC and PPS with Stratasys and Dimension machines? I wonder what would happen if I had a 2 mm diamet
by Satuna - General

Supplier for parts - 17 years ago

Hi, We are a consulting company for engineering designs and constructions. We mainly create prototypes (standalone parts and assemlbies too) for our customers. For prototypes we use an Objet machine which works with polyjet technology thus resulting fine surface quality. For short series we use reactive injection molding technology with silicone molds. In this way we can maintain our prices very
by Satuna - For Sale

Re: Extruder killed suddenly - 17 years ago

Thanks guys, it is indeed a good idea to have some pics around... I will buy a few tonight just in case... connections are ok - I suppose... I checked them a hundredmillion times... Adam
by Satuna - Controllers

Re: Extruder killed suddenly - 17 years ago

yes, I was messing around with thermistor... I was using a quite dangerous setup as my wires were hanging in air and thought would be better to cover them... may have done some damage then... Demented, did you have to change your PIC and it has solved the problem? thanks, adam
by Satuna - Controllers

Extruder killed suddenly - 17 years ago

Hello, I have been trying to calibrate my machine to improve print quality for a few days. Today, when I wanted to heat up the extruder again to launch some test it, the cmd line gave me this massaga in xp: "No extruders avaliable." I checked everything, all cables, pcb possible shortcuts but all was ok. Does anybody know when software gives this massage? what part of pcb may have gone wrong? t
by Satuna - Controllers

infilling difficulties - 17 years ago

I do not really know where to post my problem, but I think it refers to fabriacation... anyway, outlining is fine on my machine. my nozzle tip is about 1.4 mm away from bed, diameter 0.4 mm. however, when it comes to infilling i have two problems: - the nozzle tip blurs the laid down outlines. I may be too close to the bed... - and that the infilling lines are pallarell to the side walls of the
by Satuna - Plastic Extruder Working Group

Re: Extruder controller does not heat above 73 Celsius - 17 years ago

John (and Demented now too) Last night I did some trials with the extruder again. I reached 167 celsius but did not go further. I am using the same capacitor as I have on my Power and Comm board and the value I have in the software is 100 nF. After Ians suggestion... Adam
by Satuna - Plastic Extruder Working Group

Re: Extruder controller does not heat above 73 Celsius - 17 years ago

John, Last night I did my first printing with Capa. I need to do a lot of tweaking yet but it went better then I suspected. The temp I reached was 155 maximum, I did not try to go over it because I did not need it. Tonight I will try to go up to 200 and will tell you how it went. Adam
by Satuna - Plastic Extruder Working Group

Re: Extruder controller does not heat above 73 Celsius - 17 years ago

Hey, Just tried, works perfectly woth 104 ceramic capacitors. Reads the temp well and I managed to make it up to 130 Celsius. I suppose it would have gone further if I had not turned off the machine but did this convinced me. I need to try it with material too... Adam
by Satuna - Plastic Extruder Working Group

Re: Extruder controller does not heat above 73 Celsius - 17 years ago

Hi Johnr, I have not tried it yet but certanly will tonight. I will post how it went. Thanks for help anyway. Adam
by Satuna - Plastic Extruder Working Group

Re: Extruder controller does not heat above 73 Celsius - 17 years ago

Ian, I was using a 10nF capacitor and I set the value in the software too: 0.00000001F. It reads the ambient temp well but does not go over 73. Do you think I should use a 100 nF capacitor instead? Thanks, Adam
by Satuna - Plastic Extruder Working Group

Extruder controller does not heat above 73 Celsius - 17 years ago

Hi, I am trying to extrude for my first time but there is a little problem I came accross: when 73 Celius is reached the extruder turn off even though I have higher temp set (100,130,150). When temp drops back down to 67 Celsius heating turns back on and lifts the temp up to 73 degrees. then heating turns off again... And it goes on and on with no respect to the temp I have set in the software..
by Satuna - Plastic Extruder Working Group

Re: SYNC problem with gen. 1 electronics - 17 years ago

Thanks guys, It helps a lot to understand the wiring better... That was something I really missed... Adam
by Satuna - Controllers

Re: PCB v1.3.0. problems - 17 years ago

Joe, Firstly, check soldering of the other bipolar LED. Then, test your cable anyway by shorting pin 2 and 3. Just to make sure. It takes 2 seconds and you know if your cable is working at least. Then check voltages, it helps a lot too. Then if you still having problems do this: turn off everything. Take your MAX out. Put it back, if you have a spare put that one back instead and turn the pow
by Satuna - Controllers

SYNC problem with gen. 1 electronics - 17 years ago

Hey, I have put together 3 stepper drivers which work well individually. I did not find any info on the wiki pages about how to make them work together with the sync wire. Could anyone help me or send me the link where there is info about it? Thanks a lot, Adam
by Satuna - Controllers

Re: UCB 1.2.1. problem with stepper exerciser - 17 years ago

Hey, Ok, all done. The PIC was wrong, now everything functions perfectly even with the stepper tester. Adam
by Satuna - Controllers

Re: UCB 1.2.1. problem with stepper exerciser - 17 years ago

Greenarrow, I have done the ehco test with hyperterminal a while ago, it worked fine. Now, I did it again to test the cables, and both are ok. RS232 should be ok as well, because it blinks the Tx Led without shourtening the TX and RX connectors. Tomorrow I will try the new PIC, I think this is the reason. And will let you know the results. Thanks, Adam
by Satuna - Controllers

Re: UCB 1.2.1. problem with stepper exerciser - 17 years ago

One more thing I can add: I have just realized that I was wrong as I used PIC16F628 microchip with the new firmware for PIC16F648A. The LED lights which has mislead me and I thought the PIC is just fine. However, for me the PIC is suspect. Tomorrow, I will program a PIC16F628 microchip with an original firmware and do the test again.
by Satuna - Controllers

Re: UCB 1.2.1. problem with stepper exerciser - 17 years ago

Thanks Greenarrow, I knew this by the way, because I did tests with all the variations and when I got to the end i took this photo. Anyway, normally TX on stepper board should go to TX on Comms, because TX is actually RX on comms. Is that right? I did the test only with reprap host software with stepper exerciser under windows. What other test could I make? Thanks, adam
by Satuna - Controllers

Re: UCB 1.2.1. problem with stepper exerciser - 17 years ago

One thing which is different on my board and on the wiki pages is that I am using capacitors for 63Vs and not for 25Vs and 16Vs (also for PC. According to my knowledge it should not be the reason, but please somebody correct me if i am wrong. The rest of the elements are the same. PIC16F648A is used in the socket, but works fine. Thanks, Adam
by Satuna - Controllers

UCB 1.2.1. problem with stepper exerciser - 17 years ago

Hey, I have done the first soldering stage of my UCB. The first two tests were fine, but the third communication test failed. The error massage is: Receive error, re-sending: Timeout receiving byte 0->8: 0 I have seen this error in the forum, but the guys with this thing had a wiring problem. In my case it may be different, as I have tried to turn the RX and TX connectors in all possible
by Satuna - Controllers

Re: Power Comms 1.3 Voltage Tolerances? - 17 years ago

Hey again! I had the same experience and again what I can tell you is short the RX/TX (only the right pins if I remember correctly) and try the whole thing again. At this step the polarities are just right, I think these little changes does not count for this test. I have very similar polarities, maybe you are using the oldest type of power supplies too. If not, try this: First, check the seria
by Satuna - Controllers

Re: PCB v1.3.0. problems - 17 years ago

Hey, Did you short the RX/TX connectors for the communication test? If so, a photo should help. If not, short them and try the communication test again. Satuna
by Satuna - Controllers

Re: 16f648a - 17 years ago

Thanks Dylan it helped. I got my PIC programmed now, I hope it is going to work on the board too. Thanks again, Adam
by Satuna - Controllers

Re: 16f648a - 17 years ago

Hy Dylan, Can you send me the link, please which explains how to program the PIC16F648A instead of PIC16F628? I ordered the same chip and now can not program it with the hex files for PIC16F628. Thanks, Adam
by Satuna - Controllers

Re: PCB v1.3.0. problems - 17 years ago

Thanks guys, all ok! Adam
by Satuna - Controllers

Re: PCB v1.3.0. problems - 17 years ago

Thanks guys, all ok! Adam
by Satuna - Controllers
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