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I also installed the 3.3v fuse as per the pics thats
Regards
Stephen
1. Connect pin Vo(+) to pin +SEN (orange line).
2. Connect pin Vo(-) to pin -SEN (orange line).
3. Snip off the old regulator leaving the leads attached to the board.
4. Connect the three leads left from the old regulator:
- Connect GRD to ____________?
- Connect 5V out to ___________?
- Connect 24V in to ___________?
Use long wires so the new huge regulator can be placed somewhere out of the way.
Anything else?
Ben
- Connect GRD to ____________?
- Connect 5V out to ___________?
You are apparently not getting the 5 volts output from the converter. The first step is to find out why not. The fan is powered by the 24 volt side. Can you take some pics of your current set up?
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Remote On/Off
(VI = 0 V to 36 V; open collector or
equivalent compatible; signal referenced to
VI(–) terminal. See Figure 22 and Feature
Descriptions.)
JC030x1-M Negative Logic
Logic Low—Module On
Logic High—Module Off
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I'd be scared of an external adapter, as unless it's an expensive one they don't output exactly 5V. Plus unplugging like Jetguy suggested is a bit of an issue :)
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Well, it did start out as an open source project by people that were inventing everything from scratch.. ;-)
There is not much left of the stub on the old regulator to solder the 5 volt wire (top photo), but it can be done. Are there any other options for the 5 volt wire (the third leg on the switch?)?
As far as I know I haven't broken anything else in a couple of hours, so I am feeling good.
3rd leg on the switch? Did you mean 3rd leg on the regulator?
the one on the switched side -- the leg closest to the power connector.
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Yes, with the power switch off, the center and right legs are not connected (but center and left are). With the power switch on, the center and right legs are connected. So I will solder the 24v wire to the right leg.
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Yes, with the power switch off, the center and right legs are not connected (but center and left are). With the power switch on, the center and right legs are connected. So I will solder the 24v wire to the right leg.
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MISSION DEBRIEFING
My newly regulated Replicator has made several successful prints, so it looks like I am out of the woods. Here is a summary of my foibles in case anyone else wants to try this upgrade.
I was stunned when the machine booted normally; I was not expecting that. I was and still am very grateful to those on the forum who helped make this happen.
Below are images of the connections that seem to work. Give it a try.
Chris
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BTW, Gary's mod used 500mA regulators so we are well above the minimum current rating.In my own testing, worst case never ever exceed 300mA load even with it powering the 3.3 volt regulator powering a Toshiba Flash air SD card.So for sure, we know the worst case scenario load and we are magnitudes above it.
On Saturday, October 19, 2013 11:55:47 AM UTC-4, Jetguy wrote:I have the same modules but haven't tried or tested them much. Personally I think they would work fine, but I haven't tested it.One note, I wrote and extensive review on the exact board from Amazon and they didn't 100% follow the suggested circuit. The output cap is correct but the input cap is a little on the light side for values. I believe it should be 680uF but it's only 220uF just like the output cap.I don't know what EMI, RFI, and ripple values are out of it given the component choices.I'm not saying it won't work, I'm just trying to share my knowledge after reading the data sheet which is very good and explains how chosen component values should be determined.
On Saturday, October 19, 2013 11:31:48 AM UTC-4, Clinton Hoines wrote:Great option for guys in the US, looks like shipping to Canada and even ordering would be a pain and they don't ship anywhere else.
Would something like this work ok? Since I have 2 bots to mod and can find use for the other pieces I'm sure. Just not sure the 2A-3A output is high enough rating?
http://www.ebay.com/itm/10-pcs-DC-DC-LM2596-Step-Down-Adjustable-Converter-Power-Supply-Module1-3V-35V-/130984316514?pt=LH_DefaultDomain_0&hash=item1e7f460e62
On Friday, 18 October 2013 20:42:08 UTC-6, Jetguy wrote:$5 !!!!!!!!!!!!!!MFG: LUCENT (Now TYCO)
P/N: JC030A1-29M
Input: 18-36V DC
Output: 5V DC 6A
Specifications/Features: Sealed DC/DC converter module. .1% line/l.2%oad reg. 150mV P/P ripple, short circuit protected, remote sense, remote On/Off (Low-On/High-Off),500V isolation. UL,CSA, VDE Listed.
L: 2.4" W: 2.28" H: .5" WT: .2Seriously, you are going to have a hard time searching for a better rated industrial regulator!!!!!They have 6K of these in stock.