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MAKING A WOODEN GEARED CLOCK #11: TITANIC II -11th day

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Blog entry by stefang posted 12-02-2015 07:41 PM 1483 reads 0 times favorited 19 comments Add to Favorites Watch
« Part 10: Miscellaneous work - 10th day Part 11 of MAKING A WOODEN GEARED CLOCK series Part 12: Clock completed, test delayed - day 12 »

I tried to test out the clock yesterday in spite of having a bad glue-up on my pendulum bearing ring. It is supposed to be on the same plane as the pendulum rod, but the clamp I used to glue it up pulled it askew. I tried it out anyway and it oscillated back and for and in circles all at the same time. No big deal, as it was easy to fix but another 24hours for glue to dry. Here is the new one glued up. Never mind the blood, it’s generic. see below

Since the pendulum wouldn’t work I decided to just let the weight run the clock without the escapement pallet and pendulum to keep it running slow. I just wanted to see how smooth the gears ran. Everything ran fine until…..............the cord fastening pin broke through the thin wall of the weight and it came tumbling down together with a zillion tiny lead balls. This in turn pulled the drive train wheels out of kilter since the arbor end caps were too loose. The weight hit the floor and split and a few things went flying. Here is the broken weight and broken teeth on the minute wheel and escapement wheel pinions. see below

I only have myself to thank for all these problems. The weight I made clearly wasn’t up to the job and the arbor covers which I made from Linden wood were too soft and they didn’t fit tight enough to keep the wheels aligned. Despite all the problems a lot of stuff did work well. The wheels ran smoothly before the accident and rewinding the clock was easy and smooth.

I ran out to the shop afterward and cut out the new pinions and spacers to replace the broken one.

A new weight was needed. The idea was to drill out a tube from solid wood. A lot of work that didn’t turn out well. A Forstner bit was used for the job and I knew beforehand that there would be a great risk of it going crooked. A spade bit would have been preferable, but I didn’t have one big enough. Also, the piece of timber wasn’t large enough to allow for much variation, and sure enough it came out a side wall about 3/4 of the way in. A quick fix was needed so two pieces were hollowed out on one side and then the two were glued together. I plan to make a better one later, but for now I just want to get the clock running as I can’t stand any more suspense!

There won’t be time to do more before Friday as tomorrow is our shopping day. My plan is to make some better arbor caps and finish the weight and then I should be able to try out the clock again.

When I came in with the repaired pendulum, I gave it a swing to see if it ran smooth and just for fun I timed how long it would oscillate. Believe it or not, it kept swinging for a full 30 minutes, albeit with an ever decreasing arc, but even so I thought it was pretty amazing. So with such great balance and friction free running I’m not expecting any problems with it. see below

Many setbacks, but I really don’t mind because the experience will allow me to avoid some future problems.

Thanks for reading. Sorry to disappoint everyone.

-- Mike, an American living in Norway.



19 comments so far

View Dutchy's profile

Dutchy

2008 posts in 1628 days


#1 posted 12-02-2015 08:15 PM

I admire you for your perseverance. You must be the one who is/was disappointed. Mike keep on going, I,m sure you will succeed and hopefully on friday it is fixt.
Enjoy shopping with your wife tomorrow Mike and buy a cup of coffee or something else to forget your clock troubles.

BTW I found out today that making intarsia on a chevalet (for me) isn,t a great succes.

-- My englisch is bad but how is your dutch?

View SPalm's profile

SPalm

5256 posts in 3342 days


#2 posted 12-02-2015 08:21 PM

Sounds like you’re going through what I go through on lots of my projects. Good for you to just shake it off and make another piece and try again.

It is really looking nice.
Steve

-- -- I'm no rocket surgeon

View Jim Jakosh's profile

Jim Jakosh

17113 posts in 2565 days


#3 posted 12-02-2015 08:22 PM

That’s too bad, Mike. Keep a positive view and it will turn out okay. Finding ways to recover from stuff like that is a big part of woodworking!!

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View CFrye's profile

CFrye

8732 posts in 1299 days


#4 posted 12-02-2015 08:31 PM

You have a great attitude, Mike! Glad the pendulum test went well after all the ‘excitement’. You’ll be finding those tiny lead balls forever. Hopefully you’ll be able to smile at the memory they revive.

-- God bless, Candy

View kiefer's profile

kiefer

4881 posts in 2127 days


#5 posted 12-02-2015 08:44 PM

Some bad luck but some good experience which never hurts and we all go through that .
It’s good news that the pendulum works that well and that in itself should get you thinking positive about the clock when done .
For the weight I would use a ABS pipe and veneer it which would make it a lot easier and simpler to make ,just a thought .

Keep well
Klaus

-- Kiefer https://www.youtube.com/user/woodkiefer1/videos

View stefang's profile

stefang

15512 posts in 2794 days


#6 posted 12-03-2015 12:00 AM

Thanks for consolations everyone. I’m really not upset. It’s pretty par for the course when doing something entirely new. I feel very confident it will work fine next time.

Klaus Yes you are right of course, but I am so weary of driving around trying find stuff for my projects.

-- Mike, an American living in Norway.

View shipwright's profile (online now)

shipwright

7162 posts in 2258 days


#7 posted 12-03-2015 12:26 AM

What doesn’t kill us makes us stronger Mike. (or sometimes just cranky)
I’m thinking by the time this beast is operational you are going to be pretty strong. :-)
I liked your weight tube and I hope you don’t give up on it but at the risk of being a broken record I think a birds mouth would be much stronger. On smaller pieces they can be cut on a router table, just need to set up the proper angle.

Any way you decide to go I’m am convinced that it will be a great success.

Thanks for posting all the details both good and bad.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees. http://thecanadianschooloffrenchmarquetry.com/

View doubleDD's profile

doubleDD

5213 posts in 1503 days


#8 posted 12-03-2015 01:48 AM

Mike I’m just as down as you. The excitement in seeing the clock work with all those parts has got to be nerve racking. Enjoy the shopping day and give yourself a break before you break.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View hunter71's profile

hunter71

2729 posts in 2646 days


#9 posted 12-03-2015 03:11 AM

Just a lesson in clock building. Imaging the clocks built in the 1800’s with the tools they had back then
.

-- A childs smile is payment enough.

View robscastle's profile

robscastle

3390 posts in 1664 days


#10 posted 12-03-2015 05:12 AM

Beer OClock comes to mind!!

On a more serious note send me your address as I have a tray as a gift for you that you may appreciate!!!
To commemorate all your great work
https://s3.amazonaws.com/vs-lumberjocks.com/nyro8ud.jpg!

-- Regards Robert

View TopamaxSurvivor's profile

TopamaxSurvivor

17654 posts in 3135 days


#11 posted 12-03-2015 07:13 AM

Too bad there were a few minor issues Mike. Glad to see you are about to get it going big time ;-) Pun intended, of course.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View stefang's profile

stefang

15512 posts in 2794 days


#12 posted 12-03-2015 08:53 AM

What would life be without some suspense and drama?

Paul it wasn’t the glue joints that failed although one glue joint opened when it hit the floor. The wall where I sanded the inside was too week and the pin holding the string pulled right out at the end. I’m going to make another weight by hollowing two solid pieces using the cove cutting method on my table saw, glue them up and then turn them on the outside to round. I made a temporary one already, but I think I will just do a proper new one Friday and finish up on Saturday. I don’t like half done projects.

-- Mike, an American living in Norway.

View Brit's profile

Brit

6711 posts in 2302 days


#13 posted 12-03-2015 09:44 AM

What a rollercoaster ride you’re taking us on here Mike. It’s better than an episode of Dallas. One thing we know for sure though, you’ll persevere and triumph in the end.

-- Andy -- "I saw the angel in the marble and carved until I set him free." (Michelangelo)

View ArworksIII's profile

ArworksIII

13 posts in 373 days


#14 posted 12-03-2015 12:56 PM

We could chat about making gears Mike as I do have some experience in making little pieces. I never knew there was schematics for clocks… intriguing

View Sylvain's profile

Sylvain

639 posts in 1959 days


#15 posted 12-03-2015 02:10 PM

When everything is in place you might have to adjust the two grub screw to compensate any error in the frame verticality.
I have found this to be more easy with the pendulum rod without the bob : when the clock is running spontaneously (without a starting push), place the bob back on the rod.

Very good work and entertaining blog.
I am impatient to see it run.

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

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