Wipers what each pin does

[Ferrit]

sorry bad choice of words.  Its loose, both spindles fully loose and the two nuts out.  Do the wipers need to be in specific position?  It here a technique ie one spindle out and move the motor to the right type of thing?

[peteracs]

Hi

Normally at park position and yes it is a bit of a fiddle to get the whole thing out. Canoot say definitively, but you have to keep moving it and eventually you will find a sweet spot where the spindles can go low enough and the whole assembly can be removed. Sorry cannot explain better….

Peter

[Ferrit]

 

[Nigel]

Peter's right, Mark.
I've had mine in and out several times, and once you solve it you'll wonder why
you struggled in the first place. It's a rotational motion you're doing.

Watch out for very springy C clips which love to fly into unknown corners of your room.

N.

[Ferrit]

Aka ‘Jesus clips’ …

[Ferrit]

Okay so I first tried again now in better light.  So still not working.

I could see the mech was in the way on the drivers side.  I ran power to the connection on the motor moved the mech and hay presto out it came.

So here’s a thing.  I thought it was dead.  So maybe I have a problem connection.  Running power to slow and fast connection it’s all good.  Should the park connections do something?

Bench investigation to commence

[peteracs]

Hi Mark

Quick test is put gnd to black wire and +12V to blue wire, the motor should run at lower speed, remove from blue and put power to grey wire and should run at fast speed.

Next remove power to grey and put power to blue/black, this may move motor at slower speed momentarily until it stops or may not move. apply power to blue momentarily to get motor running and remove, leaving power on blue/black, the motor should keep running until it reaches the stop/park position. if all that works, then the motor is ok.

Peter

[Ferrit]

I will test this later on the bench
 

Thanks Peter

[Ferrit]

Nah baring the fast and slow it’s dead

[Ferrit]

This could be it.  Blue black term has melted and moved

[peteracs]

Hi

Well after a few false starts and destroyed chips, I now have a working prototype circuit for variable intermittent wipers. The real work now starts on packaging it suitable to actually use in the car. I need 5 terminals and first thought is to use the body of a 5 terminal relay, gut the inside and retain the terminals and casing.

I did note Steve is handy with a 3D printer, so may be asking for some assistance if he is so minded!

Peter

[Ferrit]

add me to this list.  One day I will have the appetite for this :-)

[Nigel]

That's very cool.
I hope to see this operating tomorrow morning!

N

[JASPER_40]

Hi

Well after a few false starts and destroyed chips, I now have a working prototype circuit for variable intermittent wipers. The real work now starts on packaging it suitable to actually use in the car. I need 5 terminals and first thought is to use the body of a 5 terminal relay, gut the inside and retain the terminals and casing.

I did note Steve is handy with a 3D printer, so may be asking for some assistance if he is so minded!

Peter

Happy yo help in any way

Cheers

Steve

[peteracs]

Hi

Thanks for the offer. I have a 5 pin flasher relay coming to act as a donor and see if the case is big enough to house the components.

Nigel visited today and we had a look at the int wiper relay on his which is the later style used (I only have the early style). The p/n on the case which is a standard 4 pin plug in relay style is Sipea 0599.

Peter

[peteracs]

Hi

I have spent time over the last week or so doing a PCB which will fit into the case and connectors of the flasher unit I received. Always amazes me how good the online PCB design software is and just how easy and cheap it is to have a PCB made. I pushed the buy button this evening and ordered the components as well.

Hopefully should get everything over the coming couple of weeks and then give it a go. I have designed it so it can be configured either as a fixed period intermittent wipe or as a variable one.

Peter

[peteracs]

Hi

Interesting service from the PCB manufacturer based in China. I uploaded the Gerber file and received the quote automatically on Monday. I then paid for it at 17:56, receiving a confirmation of acceptance just after. I then received an email saying the PCB was ready for collection by DHL on the Wednesday morning before breakfast time, so essentially a 1 day turnaround and the cost is next to nothing. DHL shipping is over 20x the cost of the 5 boards I ordered, total is still only $28.......

To get that service in the UK would cost a whole lot more. Very much a horses for courses situation.

I have sourced the components from UK suppliers which are already here and waiting. The DHL shipment is due by close of play Tuesday, so just a week to turn the whole job round to where I can assemble it. Total cost so far is around the £47 inc shipping and the donor relay.

Note the yellow cap is one I had as I forgot to order a surface mount one...

Peter

[peteracs]

Hi

Well DHL were well pessimistic with their delivery dates. They collected Wednesday and it arrived with me Friday lunchtime, not bad from China.

I built up the board today which was amusing as the small 0603 surface mount resistors are tiny and my eyesight is not what is was! The previous boards I used to make used 1026 parts which surprise surprise are twice as big and you can read the values printed on them.

Anyway after building it up and tweaking some of the resistor values I now have a relay which can replace the existing fixed frequency intermittent relay. What I realised when I got the boards back and revisited my diagram is that I had made a mistake and put the position of the variable resistor across the wrong resistor and as a result to do this I need a 6 pin relay, not 5. So back to seeing what 6 pin ones are around and looks like there are some low cost fuel pump relays which use 6 pins in a standard layout, so have ordered one. When I have that I can remake the board to suit and hopefully will give the desired result.

Peter

[Ferrit]

That is very neat

[peteracs]

Thanks, hoping to get the 6 pin relay this week to see what mods I need to make to allow for variable wiping.

Peter