Please help me build my new roaster.

[Remy]

Re: Please help me build my new roaster.

You can always try to take the entire silver bit off completely.  The motor should be able to be separated from the reciprocating gearbox.  Then you just need to stand the thing up to use it.

Yeah I was just thinking that!! and the reason why I just asked what that wire is for that comes round the front,.. because that would be have to go if I cut the case off.

I have just taken the extention arm piece off and about to have a look at whether I can fit the large shaft in easily,.. if not,... out with the dremel zzzzzzzzzzz.

[JavaB]

Re: Please help me build my new roaster.

So,. now to see if I can get the long shaft to sit in the middle of the cog somehow.. and lose the rest. What do you suppose the wire coming round to the top is for?

Good news!

That wire is almost certainly to "park" the wipers at the home position. When power is removed by the driver (say mid wipe).... power is still supplied to the motor until it reaches the park position (off the windscreen :) and then the motor stops turning.

[Remy]

Re: Please help me build my new roaster.

Hi Remy

Here is the underside of that power supply
AC adaptor converts to DC up to 12V
1 Amp

See Photo

KK thanks.... that looks good doesnt it!!! (as long as the 1A will do)

Aaar.... Im feeling more positive atm (so if anyone has another spanner to throw into the works,lol... pls give me half an hour of feeling positive before you do )

[JavaB]

Re: Please help me build my new roaster.

You can always try to take the entire silver bit off completely. The motor should be able to be separated from the reciprocating gearbox. Then you just need to stand the thing up to use it.

The white gear will also be required.... the worm on the shaft of the motor and the teeth on the gear gives the speed reduction (and torque multiplication) required.....

Just the motor without that gear reduction will rotate at > 50 revs per second!!! So unless you are trying to whip the beans into a mush..... rather than gently rotate them..... that gear reduction is required!

[Remy]

Re: Please help me build my new roaster.

Remy,

you will need to extend the shaft on the large white wheel to outside the case some how....

The rod and the output shaft will be useless as they are designed for the reciprocating motion...... So is there a shaft on the other side of the white gear wheel...... or any way to connect something?

Doesnt look too easy to me......

I just added the pic of the top of the wiper motor into the last post so you can see them together and to get a clearer idea of how it all works.

There is a short flat shaft in the centre of the large white cog which protrudes through to the top thank goodness.... half the battle won.

So,. now to see if I can get the long shaft to sit in the middle of the cog somehow.. and lose the rest. What do you suppose the wire coming round to the top is for?

Re: Please help me build my new roaster.

You can always try to take the entire silver bit off completely. The motor should be able to be separated from the reciprocating gearbox. Then you just need to stand the thing up to use it.

[Koffee_Kosmo]

Re: Please help me build my new roaster.

Hi Remy

Here is the underside of that power supply
AC adaptor converts to DC up to 12V
1 Amp

See Photo

[JavaB]

Re: Please help me build my new roaster.

Remy,

you will need to extend the shaft on the large white wheel to outside the case some how....

The rod and the output shaft will be useless as they are designed for the reciprocating motion...... So is there a shaft on the other side of the white gear wheel...... or any way to connect something?

Doesnt look too easy to me......

[Remy]

Re: Please help me build my new roaster.

Here are the wiper motor innards.  Hmmm...   :-/ :-?

EDITED TO ADD: Pic of the top to show how the shafts go thru.

[wingnut]

Re: Please help me build my new roaster.

Hi Remy, If you are using a wiper motor, maybe a 1 amp power supply is not enough?

Actually, just had a brainwave (ooh the pain, the pain) a car battery charger will be more than adequate to drive the motor, maybe you have one hanging around in the shed??

Dont give up yet!

Jeff

[wingnut]

Re: Please help me build my new roaster.

Hi Bill

I reckon you are right there, I work on ATMs that have a separate power good cable external to the PC (dont ask me why) that has a stereo jack style connector in a spot where it is easy to accidentally pull partly out. The number of "No power, ATM down" jobs I have had......

Back to it, I googled "ATX power good" and got the following which are worth a look.

http://freespace.virgin.net/matt.waite/resource/psu/atxpsu.htm

http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply

http://www.duxcw.com/faq/ps/ps4.htm

The first seems enough for your requirements Remy.

Have fun, Jeff

[Remy]

Re: Please help me build my new roaster.

In all likelyhood the power supply is OK.  Being a switching PSU it needs a load connected in order to start up.  Just  grab a hard drive or cd drive from the dead PC and connect it to the PSU and, if the PSU is Ok, it will start up.  There may also be an on / off switch located near the power socket.

If its an ATX power supply, I dont think its quite that easy. Therell be a green wire (power on/off) which I think needs to be connected to ground (black), and I think some power supplies also have a "voltage sense" wire that needs to be connected to one of the 3.3 or 5v wires. Theres articles on the net on how to do it - try Google.

Right...thats it...throwing the PSU idea into the too hard basket now.. it has just gotten more and more complicated. Will try and find a suitable 12VDC 1A adapter instead me thinks. Thanks wingnut

[Remy]

Re: Please help me build my new roaster.

OK,...just came back from another trip to the recycle place here, after ringing first to make sure it was a worthwhile trip : "yeah we have a whole box full" :-? > > . This time was for a DC12V 1A transformer... of which they had 5 and 3 being mobile chargers *sigh* other two no good either.

Took my wiper motor with me (so it wasnt a total waste of time) because the wreckers was close by. Asked mechanic if he could put power to it for me,.. it worked fine, but yes it oscillates as was expected (being a rear wiper motor),.....so I thought hmmmm need to open back then... to mess with gears and cant,.. so I asked the mechanic if he could loosen the screws for me (if he couldnt I was going to ask to swap for another one that can be opened) and after some struggling and the use of a lock wrench(why didnt I think of that) he managed to loosen all of them whoot! So now I am about to open it up and have a play.

[Bill]

Re: Please help me build my new roaster.

In all likelyhood the power supply is OK.  Being a switching PSU it needs a load connected in order to start up.  Just  grab a hard drive or cd drive from the dead PC and connect it to the PSU and, if the PSU is Ok, it will start up.  There may also be an on / off switch located near the power socket.

If its an ATX power supply, I dont think its quite that easy. Therell be a green wire (power on/off) which I think needs to be connected to ground (black), and I think some power supplies also have a "voltage sense" wire that needs to be connected to one of the 3.3 or 5v wires. Theres articles on the net on how to do it - try Google.

[Remy]

Re: Please help me build my new roaster.

Thanks KK. Does it say DC on it anywhere and any Amp info??