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Isaac

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12 minutes ago, jolt said:

Aaaaand FRAGS!

bottom right (and left row of chalice) came out of my display.  alieneye chalice, and pedal monti (parts i rescued before a shroom stung the rest) ..blob in the center (large alien eye) and zoa also from my display
left center row came from RCA yesterday.  
bottom left aquatek (purple encrusting w/ blue polyps).  
orange plate on the bottom right fishgallery.
open brain upper right, fish gallery.  
top left, neighbor wanted these to "recover" because they fell in his tank.  
fragspawn was from neighbors, the clown needed something.

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A new army has joined the war against the axis of palys...

20170828_193234 (Medium).jpg

I was able to remove 4 old old plugs which had paly overgrowth.  2 went to the trash (they just didnt look nice), two are going a the sale thread!

check out the GSP snuffing out that one paly on the right.

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  • 2 weeks later...

so i've decided to try and make a skimmer neck cleaner.  what i have so far:

stepper motor http://amzn.to/2vU9OjH
stepper motor driver http://amzn.to/2vTQraI
arduino to control driver http://amzn.to/2vTuKr9

If I can get this combo to go in one revolution every hour or two, the plan is to 3d print a shaft and mount some squeegees on it, the run a belt between the stepper motor and the shaft.  I cant mount the motor directly ontop, as i have a clearance issue (ugh).  will post picts once i have something!

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code i have so far...

/*
 Stepper Motor Control - one rev back and forth
 This program is for the SparkFun Easy motor driver board.
 This program drives a bipolar stepper motor.
 The motor is attached to ground plus digital pins 8 and 9 of the Arduino.
 The motor should revolve one revolution in one direction, then
 one revolution in the other direction at a speed determined by 
 the milliseconds in the microSecDelay variable.
 Created by Bill Harper, Feb. 10 2014
 */
#include <Stepper.h>
int oneway;                      // counter for steps
int onerev = 6400;               // number of steps each direction (edit this 
                                 //   for your particular motor) org 6400
int milsec = 250;                // 1 sec = 1000 ms   
                                 // delay between steps and speed of the motor 
                                 //   (about as fast as the system can react,
                                 //   higher number = slower)
                                 
int dirPin = 8;                  // output pin for stepper motor direction
int stepPin = 9;                 // output pin for the pin used to step the motor
void setup() {                
  pinMode(dirPin, OUTPUT);       // Assign output mode to pin for direction
  pinMode(stepPin, OUTPUT);      // Assign output mode to pin for setp
  digitalWrite(dirPin, LOW);     // Initialize dir pin 
  digitalWrite(stepPin, LOW);    // Initialize step pin
  oneway = 1;
}
void loop() {
  if (oneway < onerev + 1)            // Still in first revolution?
    {
      digitalWrite(dirPin, LOW);      // Keep direction pin low
    }
  else
    {
      digitalWrite(dirPin, HIGH);    // If not in first revolution change 
                                     //   direction pin to High
    }
  digitalWrite(stepPin, HIGH);       // Step motor
  //delayMicroseconds(microSecDelay);  // Wait microseconds
  delay(milsec);
  digitalWrite(stepPin, LOW);        // Step motor
  //delayMicroseconds(microSecDelay);  // Wait microseconds
  delay(milsec);
  oneway += 1;                       // Increment direction counter
  if (oneway > onerev * 2)           // If we have exceeded two revolutions
    { oneway = 1; }                  // Reset counter to start over again
  
}                                    // EOF

 

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YAIR (yet another isaac rant)

why are algae scrubbers so expensive?

2x LED panels.. $25-50 each
small tall acrylic or glass tank... maybe $50
some plumbing... $10?
plastic screen... like 10 cents

I could see these for like 100-150... but 3-500? come on.

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Anyone ever use this?
https://www.bulkreefsupply.com/insta-set-super-glue-accelerator-bob-smith-industries.html
It warns of heat generation, but does the solution have any adverse affects to certain/all corals?  share your wisdom, oh experienced fraggers.
You got me. I just use the BRS superglue.
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the skimmer cleaner project got a JOLT (*cough*) of energy yesterday (thank you @FarmerTy).  I now have a dead vertex skimmer head, which im gonna take the arm from!

ordered:
gears! http://amzn.to/2fdkcwj
belt! http://amzn.to/2felt6e

The skimmer top will have the larger gear, which is attached to the arm.  the motor above will be mounted to the side (i need to 3dprint the mount).   This design shoooould work, and the added bonus of not having the design flaw of moisture getting in the motor and ruining it (just silly vertex, so silly)

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  • 2 months later...

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