I need a new knob!

[yourdj]

I turned up to an event the other day and found my bass knob had been sheered off. I think this was from a house party and my inkling is that one of the drunk idiots surrounding my kit, when I had packed up sat on it (its on wheels) its fallen over on something? Can anyone suggest how and where I can fix this. I have not had time to look at it, but I have an LD dAVE 10 so may have a spare? I have mo issues doing this myself so any advice would be good. I intend to open it up tomorrow.

Hopefully its an easy fix?

Thanks

18455

[Imagine]

Thank you Toby - I've just had to wipe a fine Merlot from my laptop screen and keyboard after reading the title of this post! :o

If you've got a spare knob, it should just be a case of using a pair of pliers to remove the remainder of the old knob (it'll be sitting on a knurled shaft), and replacing with said new knob.


Disclaimer.......you have no idea how hard it was not to insert double-entendres into that reply!

[Nakatomi]

with 2 kids in such a short sp... oh wait.. different subject!

From the photo it looks like the shaft has been sheared right off! That means you'll likely have to replace the whole volume control. Potentially quite an easy fix once you get the box open but how easy depends on how the board with the volume control is populated.

[ppentertainments]

Is it a knob you fiddle with ?? ;);)

Being sub level control, could you not just get away with leaving it set at the level you use, or use a pair of pliers to turn it ocasionally.

[yourdj]

So its my knob shaft that needs looking at then? Lets hope its not too hard to do. My first priority is locating the dry ice delivery that did not turn up yesterday!! I used it in the same venue last week and used the Yamaha for bass control.

[Excalibur]

So its my knob shaft that needs looking at then? Lets hope its not too hard to do. My first priority is locating the dry ice delivery that did not turn up yesterday!! I used it in the same venue last week and used the Yamaha for bass control.

Dear me Toby, amidst all the " Carry On " humour afforded by your predicament, from the piccies you've given, I believe Wayne is spot on. It looks as if your Potentiometer adjustment control ( Knob for those with infantile minds in the gutter :p ) was in two parts. The outer plastic part, and an inner sleeve, which has splines to engage with the shaft of said Potentiometer./Variable Resistor. ( I don't know which is the correct technical term, there may be a hair or two to split here )

It appears that while the outer part has come off,the sleeve has remained in place, and that's the bit Wayne was suggesting you remove very carefully with pliers.
You can carefully check the theory by removing another one for comparison.

This will allow you to replace the item with a new one. Don't throw the sleeve away, it will act as a pattern for when you wander into the Disco shop ( or Maplins, mayhap ) and send the staff into fits of giggles by repeating your plight to them.

[Nakatomi]

Much as I hate disagreeing with you Peter I think if the photo was taken more at an angle it'd reveal very little if any of the volume pot's shaft protruding past the metal threaded section of the body. With some kinds of pot you can simply press the old shaft out from behind & fit a replacement from the front, snapping it into place & then press a new knob onto it. Alas, I fear Toby's shaft is one which is gripped inside the body of the pot by the teeth of a splined washer (I've seen a lot of severed knobs & shafts in my time -don't ask & I'll tell you nothing of them).

Let this be a lesson to us all. Don't let people sit on bins & play footsie with your protrusions.

As an addution to what Chris said though the control is still likely usable in its current state. An old trick TV repairmen of a certain calibre would employ in this situation... Heat the head of a screwdriver & melt a slot into the plastic rod of the shaft so said screwdriver can easily turn it...

[Excalibur]

Much as I hate disagreeing with you Peter I think if the photo was taken more at an angle it'd reveal very little if any of the volume pot's shaft protruding past the metal threaded section of the body.

Right, that's it! Toby, get your pliers and screwdriver out. We need to know the answer as soon as possible. Egg on face is at stake here. :)

The saga of Toby's knob could go viral!!

[Nakatomi]

The saga of Toby's knob could go viral!!

There are creams for that available over the counter at most good pharmacies. So I've heard.

[Excalibur]

There are creams for that available over the counter at most good pharmacies. So I've heard.

As much as it pains one of the forum's biggest Jesters to say this :(:( :
Mod note to one and all: Let's try to avoid the Finbarr Saunders Book of Double Entendres please, as this isn't in Supporters. Thank you.

[yourdj]

Well as usual I completely forgot about this and remembered a few hours before my event last week. No big issue really, but I used a variety of pliers and hack saws to cut enough off to be able to twiddle the bass to the desired location. I had ordered a Bosch pro angle grinder (that has literally just arrived) and then remembered I also had a Bosch multi tool that I have never even used. Turns out it cuts metal in fiddly places (I got it for plasterboard and grout etc.).

Made a bit of a mess, but it's sheered the outer sheath leaving the shaft naked, so I can now twiddle my knob it to my hearts satisfaction one way or the other. I will look and see if I can get something with the right diameter to replace the switch as I don't plan to sell the sub any time soon. As long as it works don't see any point in replacing a working control.

Now where is my black marker pen? :)

1846418465

[Excalibur]

Toby, you :Censored::muppet:. I could have done less damage with a Stihlsaw!

Justin, I think I win, as obviously the shaft is still proud of the backplate, despite Toby's ministrations.

[Imagine]

Toby, you :Censored::muppet:. I could have done less damage with a Stihlsaw!

Justin, I think I win, as obviously the shaft is still proud of the backplate, despite Toby's ministrations.

Erm....WHO said it first? http://www.forum.mobilediscodirectory.co.uk/showthread.php?44095-I-need-a-new-knob!&p=664973&viewfull=1#post664973

[Excalibur]

Erm....WHO said it first? http://www.forum.mobilediscodirectory.co.uk/showthread.php?44095-I-need-a-new-knob!&p=664973&viewfull=1#post664973

Now just hold on a cotton-pickin' minute there, Musky. :no:For a kick off, I credited you with it in post number 6. :bowdown:

Secondly, keep out of this. :Stop:This is between me and Justin. :handbag: He's the one calling me out. :boxer2:

When we've had our fisticuffs, you can fight the winner. :riceandrob:


( Entire post in jest, BTW ) :D

[Nakatomi]

Lol talk about fighting over the spoils. Well that's certainly one way to get a bit more length out of the broken shaft... Grind the body of the control down.

Oh, that poor sub. You don't deserve it, Toby. What's it ever done to you? ;)

[yourdj]

What's it ever done to you? ;)

Its been rock solid for years and is showing no signs of giving up on me now.
For a cheap sub (and amp for my tops) it's fantastic. :)

Its not that much of a mess :headphones:, just needs a marker pen and a new knob with 4mm internal diameter. I was going to put some tape down before hand nut could not be asked, but it wont take much difference to it and the rest of its pretty battered after 5 + years anyway.

[Excalibur]

Lol talk about fighting over the spoils. Well that's certainly one way to get a bit more length out of the broken shaft... Grind the body of the control down.



Oh dear! 'Umble Pie time for me. :o:o:o:o

Justin, you were correct. What I ( and Wayne before me ) took to be the sleeve of the knob, was in fact the collar of the resistor, and the shaft did indeed not protrude, until Toby had " mended " it.

Personally, a small drill bit, a blob of Araldite, and some form of insert ( screw, bolt, etc ) would have been my emergency " repair ".

[Nakatomi]

It matters not who was right, just that there was no misadventure this time ;) There's gold in them thar old threads man. How many DJs does it take to unblock a drain, anyway?

[Excalibur]

It matters not who was right, just that there was no misadventure this time ;) There's gold in them thar old threads man. How many DJs does it take to unblock a drain, anyway?

One.





And a team of trained medical staff to repair the collateral damage to the DJ. :Laugh:

[yourdj]

What I ( and Wayne before me ) took to be the sleeve of the knob, was in fact the collar of the resistor, and the shaft did indeed not protrude

And i knew that all along, I was just not sure what you meant. :p

Would this work? I guess its designed more for the original fitting, but if glued should be fine. i need to dig out my LD Dave 10 (which is in pieces) and see what diameter that is. I know the knob is smaller, so there is a good chance its 4mm and will match the other one. Actually having a different knob would be handy as i constantly adjust it (its at waist level) so it will be immediately obvious.

I needed to be careful when i typed 'black knob & shaft" in the same sentence on google.
What do we think? it will need some araldite:

http://cpc.farnell.com/elma/021-3320/knob-black/dp/SW03752

This one has a split shaft ribbed grip (tee hee): https://www.ebay.co.uk/itm/5Pcs-Ribbed-Grip-4mm-Split-Shaft-Potentiometer-Control-Knobs-Black-Fad-DSUK/401437225923?epid=2240724334&hash=item5d7785f3c3:g:Go0AAOSwR0xZqRMf

[ckpr2]

It needs the unit opening up and the old potentiometer replacing.
Suck off the old solder around the pot and it should come out ok.

If you have trouble getting the old knob off the shaft drill a small hole in the shaft and put a bolt or screw in it and pull it out with pliers.