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Re: New RAMPS design - 6 years ago
the same could be done with a ring terminal and you would end up with a kind of hook shape i think i got the idea when i first crimped on ring terminals for the 230V to the LED psu, the rings would not fit either so i bend them a little but i put to much muscle in it and the ring folded completely on itselfby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
about the fork style terminals i had the same problem with one of the 30A LED psu's what i did was folding the 2 forks to it became a pin instead, cant quite remember how i did it it but it was easy enough i basicly ended up with both forks on top of each otherby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
yeah, i would have crimped on a ferrule but i guess some just use bare wire even thou its not optimalby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
hehe, i guess that the green ones are not as high load as the black? i'm just in overkill mode i think :-Dby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
I like the screw terminals near the blue fuse any chance the remaining 8 can be same type?by boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
no need to as there will be an eeprom on the Ramps boardby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
just a thought that came to mind since the DUE does not have eeprom build in will the board have one? of course there needs to be space for it somewhereby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
So my guess is that the fuse will protect the board and not the FET if a short circuit happens the best that we can is to pick a FET with very low resistance and to use connectors that is rated high enough and have low contact resistance a connector with to high resistance will also just get hot and meltby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
Quotecozmicray ?? Where does the arduino plug in ?? like normal ramps... see pictures of board here: Quotecozmicray Why not MOSFET with large tab off the PCB, that can be thermally synced with radiator? Would over rating the MOSFET protect it or just lead people to draw more on it? problems are not so much the FET, its more that a fuse does not blow if you draw say 25A through a 20A Fuse, eby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
I guess the fuses are only good for shorts? that would make sense to me as that is what they are there for in cars, ie prevent shorts to avoid fire i know that for the cylinder shape glass fuses they come in a fast and slow acting type, but would they not take up more space?by boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on 
- 6 years ago
Its an ATX supply that i got spec. for the reason that it can supply 48A on the 12V rail (single rail) i just tried to do bang-bang on the nozzle and that removed even more noise but it was valid info non the less, you did not know what PSU i hadby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
Quoteo_lampe I'm sure the LCD values are filtered or averaged. Otherwise we would only see dancing pixels. Might be, that the data sent to octoprint are raw sensor values without bandwidth filtering or averaging. The capacitors on Ramps might be too small or mislabelled crap. We've seen that in the past too often.. about being crap i dont think so, it's not made in china and cost quite a bitby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
progress..... i think i changed bed to bang-bang and much of the noise is gone still need to get 1st layer right, with a 0.25 nozzle its a pain as you need to adjust very little to go from ok to not okby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
hmm maybe switching noise from the FET's ? while i'm adjusting 1 layer height i can as well change to bang-bang and not pid just to see if that makes a differenceby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
hmm i'm just testing things out heating up the bed did not get my any noise, BUT when it came to temp and started to flash the LED on the heat bed i got small amounts of noise on the Orange and Red lines since the bed does not have big temp swings i did not see the noise since octoprint has the a light blue target line on top of it masking the noise so there are noise on all 3 lines and i knby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
in octoprint it was set to get temp every 5 sec when not printing and every 2 sec when printing since octoprint does not control temp that did not make sense to me, so i have now changed it to every 5 sec while printing and autoreport (if marlin even supports that) i have now set to 0 to force it to use the the pooling intervalsby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
Quoteo_lampe IDK if Marlin is polling the AD converters or uses interrupts? If it's polling, then maybe the AD-conversion is still ongoing while Marlin polls the value? Interrupt handling routines are also tricky, especially with a constant data stream from Arduino to OctoPi. I dont know, that is why i thought of using a no name 100k thermistor to test again, even thou i dont expect any differeby boelle - RAMPS Electronics
Re: Negative spikes, not sure what is going on - 6 years ago
T1 is just a chamber temp sensor so i dont care about that one but yes noise is the only one i can think of as blue (bed is always the most noise free not matter what thermistor input i connect to what i cant figure is where the noise should come from and how i could try and get rid of itby boelle - RAMPS Electronics
Negative spikes, not sure what is going on - 6 years ago
Hi all I got a strange one for you all. I'm using this board: mega board is from: I have tried this to fix the issue: PID tuneNew wires for thermistor all the way from Ramps to ThermistorNew thermistor cartridge from New heater cartridge also from did i mention that i did a PID tune?rechecked that all wires in screw therminal are secured in place and no wires are sticking out.rechecked thatby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
about the fuses... i think these 2 types would be best, cheap and easy to getby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
i dont think you are doing anything wrong, i'm not an expert but i think polyfuses are simply to slow i bet that mini car fuses or even the normal size blade car fuses are the way to goby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
Quoteaenertia Is Due event a consideration (it's not even produced anymore) I just ordered 2 Due's from , so yes they are still produced. They are just a very high demand item :-Pby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
Solder jumpers are OK, and as you said there is no other place than the bottom side since the top side is taken and even if you could put them on top side they would be hard to reach No stress :-D we want this one to be perfect before you let go of the files With marlin i use the bugfix 2 branchby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
quick one before bed time marlin firmware supports both tmc2130 and 2208 for 2208 hard just have to give each driver 2 digital pins and marlin takes care of the rest for 2130 only one pin is needed (cs line) and yes its very smart not to relase files before you know things work etc.... just see what happend to Ramps-FD.... all the china factories started to flood the market with board even thby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
how many digital and analog pins does the esp32 have compared to teensy 3.6?by boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
hehe, this is a shield :-P but i know what you mean, either a board that can connect in breadboard style or different versions that can stack on top og the MCU but i agree partly with going away from mega.... 8 bit has it limits and 3d printing is always pushing the limits. that is why i suggested something like the teensy, it runs faster than due and has an FPU build in on the other hand it cby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
Quoteaenertia Is Due event a consideration (it's not even produced anymore) its just out of stock, it has not been marked as discontinued Quoteaenertia SPI controlled Motor controllers are likely going to be the norm so is serial controlled onces like TMC2208 that can handle more current and run cooler than TM2130 Quoteaenertia (to support multi-colour extruders) (zyz, rgbbw) what is zyz anby boelle - RAMPS Electronics
Re: New RAMPS design - 6 years ago
I'm a bit late to the party, but have you have you considered other boards than the due? the teensy 3.6 is also 32 bit but runs faster and have an FPU and there is also TMC2208 that can handle a bit more current and runs cooler, the running cool part is something people newer talk about. 2208 also have stallguard 2, but i think that that they dont offer sensorless homing. you would need to checby boelle - RAMPS Electronics
Re: SMART RAMPS For Due - 7 years ago
could also be nice to know how to connect other displays like the full graphics ones, at least say if its the same as with ramps or if i have to make a custom cable, making a custom cable is absolute no problemby boelle - Duet