evil98

I used a rubber oring and a thin washer.

you could use washers to make up for the slop. the shaft is maybe 2mm in diameter.

I use a button but its a non adjustable ultra pitch. Essentially I switch between to sets of resistance. I've removed the stock trimmer for the 33.3 speed and replaced it with a break out board with both the stock trimmer and a new trimmer with a different resistance. Then I use a relay to toggle between the two. If you do the battery mod, you have more then enough space to mount the potentiometer inside the battery compartment. That way it could be hidden but still adjustable.

I wired it to the 9v, and the 12v both perform horribly at similar speeds. Since I was doing so much testing anyways I thought to make it easier on myself and used screw terminals for the 12v and 9v.

I wired it straight to the motor out. I will try directly from the 9V and see what kind of results I get.

I started messing around with my focus fader but im not even sure if it is a working fader or not. I gave V+ 5v, metered both VC and I get 5v no matter if there is something blocking the interrupter or not. Is there anyway to check if the interrupters are bad?

im thinking that its the minimum voltage (6v). I believe that the motor runs at max 6v. This is the one I tested and it works but very inconsistent rpms at low speeds https://www.amazon.com/uniquegoods-1803BKW-Controller-Adjustable-Driver/dp/B00RYKR83Q/ref=pd_sbs_60_1?_encoding=UTF8&psc=1&refRID=K9TXZF5VWMAC0G24MAY2

great video! always helpful to see other peoples thought processes while repairing stuff.

oh interesting, i've been running my 3s lithium pack from the leads. so far nothing has exploded lol... but maybe ill move it 18650s are normally lipo too. Either will be fine.So I made one 8.4v nimh pack and installed with deans connectors..seems to be running fine. Could I run 2 of these packs parallel at once to double the amperage but keep the same voltage? https://instagram.com/p/BQgJ3nthdif I also have a couple 18560 battery sleds that I'm going to put deans on to try 2x18650's since that'll put the pack at 8.4 as well.. 2 packs in parallel will keep the same voltage but I'm not positive that is the best way to go about it. With lithium batteries I usually do a series of parallel groups, but this is because I need to be able to monitor the voltage of each group to charge them safely. I'm using a 3-series over charge/over discharge/short protection board and 6x 3000mah 18650 batteries (3 groups of parallel the put those into series = 12.6v 6000mah).

Thats fine, the voltage regulator can handle up to 18v. http://www.beatshelter.com/wp-content/uploads/2016/04/pic1_PT01_regulator.png Is it better to solder directly to this piece, to the actual battery lead? I also see some people using 12v batteries.. I can make either or battery pack... I used the battery leads. Whatever is easier for you

Thats fine, the voltage regulator can handle up to 18v.

Sounds good thanks

Yea I don't blame you that 56 was in really bad shape. I still need both the slide pot and rotary pot. Let me know when your parting and how much. Thanks

Hello my friend, could you send the 3D layout for printing the housing to innofader mini? Hello, It is currently not available for download. Maybe down the road but not at the moment. Here is what the final version looks like though. this. you could definitely mount a pot there, but I'm not 100% sure what the best way to go about is. I would probably remove the existing pot from the PCB and extend wires to from the PCB to the new pot.

@rasteri Is there anyway to split the needle signal post fader on the pt01 scratch? Thanks. Also finished up my ultrapitch. Haven't measured the speed reduction yet but you get the point.

oh wow, I see it on ebay. GL!

sorry can't be of much help here but taking notes for the future I'm constantly on the look out for parts so if I come up with anything Ill let you know.

im not sure what the official name of the connector is but I know they go by cartridge clips.

Thanks for the offer! But more interestingly, you think that I could use a different value pot for both? Because if that's the case I think I could definitely find replacements. edit: I found a ALPS rotary in the same dimensions but in 10k. edit: nvm cant find any slide potentiometer in those dimensions that are dual gang

That will work but it would cost me about $19 for a potentiometer that is worth maybe $2.. I know I'm being stingy but its the principal lol

I'm going to test the rotary pot to see if it still works. I did manage to "reassemble" it but I'm not sure if its put together right. The slide potentiometer is toast. Yea mouser is the first place I looked. I also checked digikey and they don't have much in stock either. This is the closest thing I can find for the rotary pot P0925N-FC15BR20K Datasheet As for the slide potentiometer, I haven't found anything that is suitable. At this point I might just make the dry-wet a rotary as well.

Found a Rane TTM-56 for $280 but with multiple broken pots. I have no problem replacing the pots. Everything else is in good condition. My issue is finding the original ALPS components. I've been on ebay all day and none of my goto electronic sites carry any ALPS with in the specs. I've found some comparable components from other manufactures but even those have some ridiculous lead time. I've contacted rane via email but no response yet. I found this site instrumentalparts.com but everything is extremely over priced and non-oem. Anyone got any sources? Thanks! These are the specs that I can gather from my observations and measurements. If anything is wrong please let me know. I'm guessing on the tapers. volume pot 20k ohmdual gangtop adjustpcb mountD shaft6mm ⌀ shaft15mm length shaft (including threads)7mm length flat arealogarithmic taper (?)slide pot 20k ohmdual gangpcb mount20mm travel20mm lever length1.2mm lever thicknessno detent9mm width35mm lenght7mm heightlinear taper (?)

I order most of my hardware from mcmaster.com. I'm pretty sure they have a distributor out of chicago, so you might be able to will call everything https://www.mcmaster.com/#92000A109 https://www.mcmaster.com/#91828a113 its hard to find the exact oem washers but these are close https://www.mcmaster.com/#92917a105

I tested a similar generic PWM speed controller and I had inconsistency at low speeds as well. I'm thinking that the frequency is just unstable. I didn't do extensive testing but I'm thinking there is a combination of voltage to "speed setting" that could yield better results then just dumping the pitch to its lowest speed (lowest voltage). With my mod there isn't any fluttering since its just reducing its voltage. Its very smooth at 1k ohm. I don't know exactly what RPM its running at but it is noticeably slower. Thanks, I'm taking precautions in the design to try and accommodate for any big changes to the mini innofader plus since I only have the mini to reference. My only concern is the additional connector on the left. Hopefully its actually a 5pin jst xh connector and not a surprise on release. Thanks

Speaking of mini Innofaders. I've been working on a fader housing for the PT01 scratch. This is a test print using the mini Innofader. Need to make some adjustments to the design but its close. Also did a selectable ultra pitch, toggling between the original trimmer pot for 33.3 and a 1k trimmer pot.