Re: Heat Bet Voltage Question: :)Ramps1.4
PS: using 16 gauge wire for the bed.Do i go for 14? the heater extruder runs on 18 gauge so I would not think that would make a difference in bed.
View ArticleRe: Where to get female board moun versions of molex 4-pin connector...
Romels33: Those aren't the same sort of connectors. These are the same power connectors that were used on PATA (and earlier) hard drives, old 5.25" floppy drives, etc. The connectors that...
View ArticleRe: Heat Bet Voltage Question: :)Ramps1.4
When you're measuring D8, are you measuring from one pin to the other, or are you measuring from the positive pin to the ground on your RAMPS board/PSU? RAMPS provides 12V ALWAYS on one pin, and...
View ArticleRe: Looking for an qualified USA/Canada distributor (RADDS-32-Bit Electronic)
Hi angelo! Why do you want to include just 3 stepper drivers? typo?
View ArticleRe: Looking for an qualified USA/Canada distributor (RADDS-32-Bit Electronic)
32-Bit Electronic make sense for x/y core or Delta (speed). the Stepperdriver 1/128 more for a excellent print result and a better positioning (quality). In regular 1/128 drivers for Extruder make no...
View ArticleRe: Heat Bet Voltage Question: :)Ramps1.4
The voltage drop on a fully open STP55NF06L mosfet passing 12A should be 0.192 volts. To measure that directly you measure between gnd terminal of D8 and gnd of psu itself. If you do get indeed a...
View ArticleRe: Heat Bet Voltage Question: :)Ramps1.4
Thank you for the reply. I see what you mean. When I test the 16 gauge wires by connecting to D8 and testing the wire tips with multimeter , at first I get the 12.48 V. Then When I solder the bed,...
View ArticleRe: Heat Bet Voltage Question: :)Ramps1.4
Thank you for your answer. I replied above. Please advise if you see anything wrong in my process. - Janski
View ArticleRe: Heat Bet Voltage Question: :)Ramps1.4
Attached is the pic of the solder job. So to answer my question: This bed is drawing 11.80V and there is nothing I can do about it because of the hardware. Let me know if I am thinking in the right...
View ArticleRe: Where to get female board moun versions of molex 4-pin connector...
Oh ok LOL... :) I completely misunderstood the question. My bad. Yeah, I agree. I have only seen those for use on the end of cables and wires and not for PCB mounting. But, I could be wrong. I learn...
View ArticleRe: Help choosing a control board
MrDoctorDIV: Thanks for your input on the Megatronics. I actually decided to build these boards as opposed to the RAMBO. Part of the reason is that the Megatronics boards have components that are...
View ArticleRamps 1.4 COM Connection Issue: HELP!
Hey Reprappers, While making my 2nd Ord bot, using Ramps 1.4, I have encountered an issue: "The printer seems to freeze and lose connection to COM3 about 43 seconds before print ends." Has anyone...
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Help replace dead hotend heater (Ohm's Law and Rated Wattage)
Dear All, My ceramic heater is dead, which one should I get as replacement? I get a lot of information from reprap and the internet but a couple of things get confusing between reads. Quick...
View ArticleRe: Chosing resistors for heating
This post is from almost 5 years ago. But for those who can help I made reference to this post in another thread: Help replace dead hotend heater (Ohm's Law and Rated Wattage)
View ArticleRe: Help replace dead hotend heater (Ohm's Law and Rated Wattage)
QuoteTrue or false? Will it produce a maximum of 1w of heat? It'll produce more. P = U2/R, no matter what the specified wattage says. QuoteTrue or false? Will it die if more than 1w goes through it?...
View ArticleRe: Help replace dead hotend heater (Ohm's Law and Rated Wattage)
Ohms law is actually the very definition of resistance (measured in ohms). Generally speaking "laws" may have exceptions or corner cases, but measurement units not so much. The power in watts, with an...
View Article2 x 100k Thermistors
I recently purchased a Rapman 3.1 with a faulty hot end. It gets hot but shuts down due to thermistor error. I plan to replace the hotend with an e3d v6 soon but at the moment I dont have any 200k...
View ArticlePower Supply Problem
I am making a Prusa I3 and i have everything assembled and wired up. When i turn on the machine without a USB connection, the power supply (Thermaltake Purepower 2.0 350W) turns on for a split second...
View ArticleRe: Power Supply Problem
Which wiki instructions did you follow and where exactly did you get stuck?
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