3573 replies to this topic

[Marty N]

Bet it's more that 50 turns

[havlicek]

Well that's a pretty safe guess Marty, I've never done one with less than 50 turns of #29 Also, at .5 ohm the motor guys (like yourself) know at least what ballpark I'm playing in! I have no way of quantifying or proving it, but the wind pattern I used here and have used sometimes over the last 6 months or so seems to be a winner in some circumstances.

-john

[Marty N]

Question for ya John. When your using your meter and calling out your readings is the reading of a single pole isolated or from the com as a fully wound arm?

Pretty wind, nice pattern.

[Russell Sheldon]

John, that armature isincredibly neatly wound. Beautiful workmanship!

Kind regards,

Russell

[havlicek]

Thanks guys. It doesn't get much easier, but it does get more consistent after a while.

Question for ya John. When your using your meter and calling out your readings is the reading of a single pole isolated or from the com as a fully wound arm?

Hi Marty,

It depends. Sometimes I'll wind a single pole and then measure it if I'm trying different things out. Mostly, I'll measure the whole arm from pole to pole fully wound and at the com segments.

-john

[havlicek]

For all you rewinders out there (yes...both of you!), 100T of #31 ...tied/epoxied and static balanced, is all it takes to make an otherwise completely stock (even the magnets!) Russkit "23" into a fun and "safe" motor. No spring post protectors needed, no magnet shims, not even any better springs...just tweak the spring bends a bit.

-john

[tinshak]

hi john
great work your doing with these old motors, keep it up.

ive been after a Russkit "23" for some time now so i can build a period jail door,
won 6 of them NIB on ebay the other night.
so i think i will risk opening one up and try your 100T #31 magic on it.

sam.

[havlicek]

Hi Sam,

Yep...100T/#31 is a really nice wind for these motors. A solid up from stock and not at all a self-destruct device. It should make for a very good powerplant for your jaildoor!

-john

[havlicek]

After having gone through countless Dremels over the last few years (I've actually lost count...but it's usually the speed control, but sometimes other stuff at the same time!). I started using a Proxxon about a week ago. While it's way too early to tell if it's going to last, the tool is startlingly quiet and smooth compared to the Dremel. I find myself doing significantly better work with it, maybe just because it's so quiet and smooth (you can concentrate more because the tool doesn't sound like it's going to explode). It seems like there's noticeably less runout as well and the tool is very comfortable to hold. It's also nice that the variable speed control is not the same as the on/off switch and that will no doubt make both last longer. I didn't get the "Professional Model" which apparently has the same guts but with a metal case, because it can't be fitted with a chuck. The model below has a plastic/rubber case and comes with a keyless chuck. I was worried that the chuck wouldn't hold firmly...but it hasn't caused a single problem yet. There are no user-replaceable brushes as the motor is a sealed unit...so if the brushes go...the motor is toast as well. Maybe the motor will last a long time or something. Anyway, so far I'm completely sold on this thing and you might want to check them out if you're in the market. It's about $80 for the tool, a nice plastic kit box and some accesories.



-john

PS, if this is against a posting rule somehow, please wipe this baby!

[NSwanberg]

A Havlicek endorsement! How do I invest in Proxxon?

[Bill from NH]

That's a nice alternative I wasn't aware of. I picked up a Black & Decker 3-speed unit for a backup/spare at either Target or Walmart for about $30. If money is no problem(yeh, when?) one of the Foredoms, with a flex shaft & a handpiece, is the way to go.

[Jairus]

hi john
great work your doing with these old motors, keep it up.

ive been after a Russkit "23" for some time now so i can build a period jail door,
won 6 of them NIB on ebay the other night.
so i think i will risk opening one up and try your 100T #31 magic on it.

sam.

Ah... so you are the one. John and I wanted to split that auction...


John, as for the Dremel wearing out. I agree with you. I am on my third in 25 years. However, I wear out the bearings or commentator before the speed control goes out because I use the 2-speed Dremels. Yup, two speeds are all that is needed when a nice sewing machine foot control is added to the power line. Three
Dremels have all been run by the one cheap charlie sewing machine foot control.

[Bill from NH]

Jairus, there's been more than one lot of Russkit 23s recently. I don't know if they're still there, but last week there were two other 6-packs of the motors. They always seem to be in Russkit 34 packaging.

[Jairus]

Yeah, same pictures too. Watched them all... but the third one to close seemed to disappear. Was it pulled I wonder?

[tinshak]

hi guys

i won the first lot of 6.
did i pay over the top or was it a fair price for 6
john and jairus i may put 2 up for trade when they get here as i dont need all 6 ,
just dont seem to find new ones in the UK.

SAM.

[havlicek]

I'm working on the second of two loads of motors for some euro-slotters. Most of the motors are a mish-mash of parts, some need new setups and arms as what's there would take too much effort to make presentable not to mention functional. So what I do is take the motors apart and then make a judgement as to what's the best way to proceed...either repair what's there or start from scratch. After doing all the Mabuchi-era motors, this group has two C-cans and both were in really sorry shape. The first one was completely frozen, the arm wouldn't turn (even with pliers on the pinion!) and the end bell would NOT come off, heck...I couldn't get the springs off the spring posts! After some hefty struggling, I was able to get it all apart and found a big wire arm in there done on a .007" lam blank. So I did some careful cleaning and then recut the com, and it meters just fine. It is inscribed "S" on one pole face (Steube?), "23" on another and "16T" on the third. There's a bit more on there that I can't make out and I don't want to clean the arm any more. If it's not a Steube, then whoever wound the arm did a really nice job:



...sometimes you find really neat stuff cleaning up, rewinding, fixing people's old motors. Of course, this one will NOT get a rewind. The setup will get dismantled, cleaned-up and whatever else it needs...oh yeah, it didn't have shunts before but I'm pretty sure it could use a set

-john

[Victor Poulin]

John,
If I didn't know better, other than the markings I would think it was one of your winds.
Your right, someone did a real nice job on it !


Vic

[havlicek]

Hi Vic,

The script looks like that on the Steube arms I've seen so I suspect it is one of his. I sure hope so, as I spent some time holding it trying to absorb some "mojo" from one of the greats.

-john

[mdiv]

Nice find there, John!

Mikey

[havlicek]

Hi Mikey...yeah, it is a nice one. I don't think the guy has any idea what it is...but I'm going to fill him in as soon as I get confirmation from the gurus. Anyway, as nice as the arm is, it probably shouldn't be raced in anger anymore. A couple of (extremely) hot laps for giggles is about all. Man...I got back into rewinding several decades too late!

-john

[Victor Poulin]

Hi Vic,

The script looks like that on the Steube arms I've seen so I suspect it is one of his. I sure hope so, as I spent some time holding it trying to absorb some "mojo" from one of the greats.

-john

Can't say I blame you John, if it were mine I'd have to keep it just because of what and who it is.

[mdiv]

Yep, should go in a "fun" car

[Kim Lander]

John,
It looks just likem the Steubes I ran way back, put that one away for history sake. You did a good job cleaning it up....Kim

[NSwanberg]

Hi Vic,

The script looks like that on the Steube arms I've seen so I suspect it is one of his. I sure hope so, as I spent some time holding it trying to absorb some "mojo" from one of the greats.

-john

I believe that "S" is for Select as on a Camen armature.

[havlicek]

John,
It looks just likem the Steubes I ran way back, put that one away for history sake. You did a good job cleaning it up....Kim

hey Kim, well it's not mine so it goes back into the setup after I blast as much crud from it as I can ...and back to the owner hopefully in working condition.

I believe that "S" is for Select as on a Camen armature.

Oh well Nelson, it's still a neat-o BIG wire arm! Thanks for the info!

-john