Jump to content
Please be aware of scammers when using the Sale/Wanted forum areas

Dennis Mulhair

Members
 View Profile  See their activity

  • Posts

    122

  • Joined

  • Last visited

 Content Type 

Posts posted by Dennis Mulhair

    Irvine engine types

    in IC Engines

    Posted

    The Liner is OK nut the piston is scored. Trying to get one now before I can't. Also could do with bearings. As I see it might as well replace these too if I'm taking it all apart.

     

    Dennis

     

    Epoxy Resin &glued joints.

    in All Things Model Flying

    Posted

    Hello All,

     

    Does anyone know how I can soften/disolve an epoxy resin joint. I need to remove part of a wing  that has been joined using epoxy. Also, On the same subject How do I unglue a PVA joint without submerging the job in water for ages?

     

    Hope someone can assist.

     

    Dennis

    Irvine engine types

    in IC Engines

    Posted

    I managed to get some drawings of the Mk2 & 3 motors and the MK3 has the words "IRVINE" vertically written on the crankcase and the screws for the exhaust go through the case into the exhaust pipe. On the MK2 (ABC) "IRVINE" is written directly below the cylinder barrel and the screws do not pass through the crankcase.

    So I believe my motor is a MK2. Do you agree?

     

    Dennis

    CIMG4660.JPG

    CIMG4661.JPG

    CIMG4662.JPG

    CIMG4663.JPG

    Irvine engine types

    in IC Engines

    Posted

    Thanks folks for this. Been talking to Wheekspin Models and they contacted the inporters of Irvine engines and they say as long as its an "ABC" then most parts will fit. So Im going to order a new piston & liner and see what happens.

     

    Once again Thanks folks.

     

    Dennis

    • Like 1

    Irvine engine types

    in IC Engines

    Posted

    Hello,

     

    Recently I was given an old Irvine 46 motor. I need to get some parts for it but I’m not sure what mark it is. I do know that it was made in England, the Allen screws that hold the silencer on need a 1/8” Allen key and the body is not RED.

    Can anyone tell me how I find out it mark No. So I can order the correct parts.

     

    Many Thanks

     

    Dennis Mulhair

    1S Wattmeter

    in Gadgets and Electronics

    Posted

    Hi Chris, could you explain an anomaly I have come across. I am running the units on V4 software and have noticed the “Min Volts” is recording what appears to be the maximum voltage of the cell. I was expecting the cell voltage to drop in use and with a volt meter across it it does, but the Wattmeter is still recording the higher voltage that was there at switch on. The “volts” value faithfully follows the state of the voltage on the cell.

    I replaced the 1 cell with a power supply and the unit was the same. When I lowered the voltage on the supply the wattmeter only recorded the higher initial voltage in “Min Volts”, but if I increase the voltage (something that would not happen in the real world) the “Min Volts” alters to reflect this increase.

    Are we recording the Max voltage of the cell, and so should the labelling change to “Max Volts”?

    Regards

    Dennis

    1S Wattmeter

    in Gadgets and Electronics

    Posted

    Hi Chris

    Just gone through the current setup and the unit is reading high, see below

    5.54V------- Meter reading 0.530A---------Ardunio reading 0.53/0.58A

    7.64V------- Meter reading 0.730A---------Ardunio reading 0.80A

    10.26V------- Meter reading 0.991A---------Ardunio reading 1.06

    This was with the current pot at its lowest setting. I am going to load your mod above and come back with more results

    Dennis

    1S Wattmeter

    in Gadgets and Electronics

    Posted

    Hi Chris,

    I’ve noticed occasionally that after switch on I’m getting a white screen, to restore the program I’m having to use the reset button on the Arduino to get the program to start. Have you come across this before?

    Dennis

    1S Wattmeter

    in Gadgets and Electronics

    Posted

    Hi Chris,

    Haven't got that far yet but still making progress. I ordered my screen very early on when Bitsbox didn't have any in stock so got mine from Ebay. As far as I could tell they looked the same as yours but the pcb seems to be bigger as it doesn't fit your box and there are more pinouts on mine!

    Finally got it working using the following conversion table

    Arduino pin no. motherboard socket pin No. New screen connections

    VCC 1 VCC

    GND 2 GND

    8 3 CS

    9 4 RST

    10 5 RS

    11 6 SDA

    13 7 CLK

    I am at the stage of setting the input voltage on a 3 decimal place digital multimeter which seems very stable. I'm using a 1 cell lipo to set this, will attempt the current setting tomorrow. Will come back to you with my findings.

    Regards

    Dennis

    1S Wattmeter

    in Gadgets and Electronics

    Posted

    Hi Chris,

    Looking at the picture of the assembled circuit board I see you have the Tant 1UF (C2) capacitor in the position of C1. Is this correct? Also, you have the +ve leg of the capacitor connected to P1 terminal of the screen.

×
×
  • Create New...