LumberJocks

4.5+ Minutes Spin Time Top

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Project by mdzehr posted 12-15-2018 08:20 AM 1234 views 5 times favorited 30 comments Add to Favorites Watch

This top is made of Maple with a Cherry accent stripe. It’s secret component is a 3/4” metal washer imbedded in the center of the spin axis. Total dimensions are 3.75” tall; 1.75” wide (wood) 2” for the washer; and the shaft is 5/16” diameter. It consistently spins over 4.5 minutes in a glass bowl before toppling over. If the bowl only had a slight depression in the center I think it might even spin longer as it takes a while (and energy) trying to find a spot to settle in and do what it does best: spinning without any visible hint of a wobble or other movement. Because of its speed, weight, and density I wouldn’t advise spinning it on your wife’s nice dining room table :).

Update: I added a round headed brass brad to the tip along with a drop of light oil and increased the spin time to 6.25 minutes.

-- Mike, Lancaster PA





30 comments so far

View therealSteveN's profile (online now)

therealSteveN

3377 posts in 1024 days


#1 posted 12-15-2018 11:42 AM

4 and a 1/2 minutes is a great spin.

“It consistently spins over 4.5 minutes in a glass bowl before toppling over. If the bowl only had a slight depression in the center I think it might even spin longer as it takes a while (and energy) trying to find a spot to settle in and do what it does best:”

That part makes me wonder if wasting that much energy occurs, then why not time it on a smallish overall diameter, flat plate, with a slightly raised edge instead? The plate would “contain” the top, but it wouldn’t use much energy at all finding a good spot to spin….

Anyhow, nice top. It brings out the kid in me..

Thanks for posting.

-- Think safe, be safe

View mahdee's profile

mahdee

4291 posts in 2217 days


#2 posted 12-15-2018 02:31 PM

Looks very nice. 4.5 minutes; that would keep a kid busy for a while.

-- earthartandfoods.com

View stefang's profile

stefang

16711 posts in 3784 days


#3 posted 12-15-2018 02:38 PM

Serious spin time. Great design idea. My kids would’ve complained that it spun too long and that the fun part was pulling the string!

-- Mike, an American living in Norway.

View lew's profile

lew

12821 posts in 4205 days


#4 posted 12-15-2018 03:51 PM

Nice!

Thanks for the heads up about the dining room table :^)

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View mdzehr's profile

mdzehr

331 posts in 818 days


#5 posted 12-15-2018 04:01 PM

And a Great Uncle! Thanks!


Looks very nice. 4.5 minutes; that would keep a kid busy for a while.

- mahdee


-- Mike, Lancaster PA

View mdzehr's profile

mdzehr

331 posts in 818 days


#6 posted 12-15-2018 04:03 PM

Well, in reality the kids enjoy tracking the top down and catching it so I don’t get the long spin time while playing with the kids!


Serious spin time. Great design idea. My kids would ve complained that it spun too long and that the fun part was pulling the string!

- stefang


-- Mike, Lancaster PA

View mdzehr's profile

mdzehr

331 posts in 818 days


#7 posted 12-15-2018 04:05 PM

I ended up drilling a hole in the end of the top and inserting a round head brass brad that helps reduce drag even more.


4 and a 1/2 minutes is a great spin.

“It consistently spins over 4.5 minutes in a glass bowl before toppling over. If the bowl only had a slight depression in the center I think it might even spin longer as it takes a while (and energy) trying to find a spot to settle in and do what it does best:”

That part makes me wonder if wasting that much energy occurs, then why not time it on a smallish overall diameter, flat plate, with a slightly raised edge instead? The plate would “contain” the top, but it wouldn t use much energy at all finding a good spot to spin….

Anyhow, nice top. It brings out the kid in me..

Thanks for posting.

- therealSteveN


-- Mike, Lancaster PA

View mdzehr's profile

mdzehr

331 posts in 818 days


#8 posted 12-15-2018 04:06 PM

Thanks Lew


Nice!

Thanks for the heads up about the dining room table :^)

- lew


-- Mike, Lancaster PA

View GR8HUNTER's profile

GR8HUNTER

6328 posts in 1162 days


#9 posted 12-15-2018 04:31 PM

I do hope the dining room table comment was not from experience … I can see your having loads of fun with your new toy (lathe) nice top like the added weight with washer .. GREAT JOB :<))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

View mdzehr's profile

mdzehr

331 posts in 818 days


#10 posted 12-15-2018 04:36 PM

Thanks Tony. No, for once I actually thought my way through that one before having to learn it the hard way!


I do hope the dining room table comment was not from experience … I can see your having loads of fun with your new toy (lathe) nice top like the added weight with washer .. GREAT JOB :<))

- GR8HUNTER


-- Mike, Lancaster PA

View awsum55's profile

awsum55

612 posts in 958 days


#11 posted 12-15-2018 05:01 PM

Everyone likes to play with a top, what a great present idea. Congrats on your DT3

-- John D, OP, KS

View mdzehr's profile

mdzehr

331 posts in 818 days


#12 posted 12-15-2018 05:06 PM

Thanks John, especially us big kids that never grew up!


Everyone likes to play with a top, what a great present idea. Congrats on your DT3

- awsum55


-- Mike, Lancaster PA

View socrbent's profile

socrbent

872 posts in 2719 days


#13 posted 12-15-2018 05:37 PM

Great idea and execution. Makes me want to dig out one of my “big tops” (http://lumberjocks.com/projects/206426) and compare times. you may want to try a ball bearing tip to see if it will affect spin time.

-- socrbent Ohio

View Underdog's profile

Underdog

1376 posts in 2485 days


#14 posted 12-15-2018 05:41 PM



Great idea and execution. Makes me want to dig out one of my “big tops” (http://lumberjocks.com/projects/206426) and compare times. you may want to try a ball bearing tip to see if it will affect spin time.

- socrbent

Great ideas. Like your tops. I’ll have to look more at your projects. I love making tops too.

-- Jim, Georgia, USA

View Underdog's profile

Underdog

1376 posts in 2485 days


#15 posted 12-15-2018 05:41 PM

Hey Mike. Thanks for the idea! I wanna go out and dig up some washers now…

Great top!

-- Jim, Georgia, USA

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