Pendulum Clock

[Kim]

Wow!  That's really nice!  I like that. I may have to print me one of those.

So, what's the loud buzzer at about 6 seconds?  This isn't an alarm clock, is it? 

Kim

[wagnmkr]

That is a nice looking clock and it is on the list. It seems to run fine.

 

[Krypto]

You gotta buy the STL files, but Steve does post the assembly notes on his website. Here's the one for this clock:

https://www.stevesclocks.com/_files/ugd/de7e58_6a52cdf3ca3c4583ae0680b15353cc25.pdf

With the sound leveling on the phone, the little N20 re-winder motor sounds a lot louder than it really is. They are kinda neat with a 1000:1 gear reduction. When I bought a pack of them last year, they were a little over a $1 per motor.

[wagnmkr]

I have purchased the files for the Large, Easy Build clock .....https://www.stevesclocks.com/sp4.  It is on the list next.

The one I have been working on needs all the gears reprinted as it seems I was a touch heavy on the elephant foot thing in trying to get the filament to stick to the bed. That is now sorted and it will be quicker to just print a new set.

Where did you get the wee geared motor from?  OOOps ... forgot you had list the link to his notes. Looked in there and found my answer.

 

[wagnmkr]

Progress has been slow due to illness but some new parts are made and the new year is full of promise.

Some of the parts are a bit interesting to print, but after a test one and a couple of adjustments, I have had success.

Happy Holidays to all, and I'll be back in the new year.

 

[Krypto]

Looks good! Once you get the printer settings sorted things go much faster.

Mine's working great! I was shooting for a minute a week accuracy but it's already been almost two weeks since the last adjustment and it's still within a minute.

[wagnmkr]

That is pretty amazing when you think it is a machine squirting plastic onto a plate! Well done on the accuracy! My largest problem is getting rid of the elephants foot, but still getting the print to stick! So far, for me, hair spray is my friend!

 

[crueby]

Print adhesion was a problem on my printer with PLA, till I saw a suggestion to up the print bed temperature a bit. The stock temp was 60C, 70C is working much better. That and the sheet has to be CLEAN. any fingerprint oils, etc, will cause it to raise up after a few layers. Another trick is to add shallow wide blocks to the part around the perimeter, connected by very thin sprues that you can trim off easily - that ups the surface area without putting down a full raft that is hard to clean off the finished parts.

[Krypto]

Yes, more first layer "smoosh" makes the print stick better, but that creates elephant foot which is bad for the clock gears. If hair spray is working, then stick with it.   

For me and the gold PEI sheets, I always give it a good scrub with 91% IPA before a print and that seems to work.

[wagnmkr]

Chris, on the fiddly bits, like gears with a lot of small teeth, I use a brim, which if done just right, will peel off when the print is cool and you can't see or feel where there was one.

I wash the print plate after every two or three prints to keep it nice and clean, and I make sure not to touch it with my hands.

I have upped the bed temp from the 65c I was using, to 70c and so far that looks good.

Happy Holidays!

 

Tom

[wagnmkr]

Krypto, I haven't used any cleaner, other than water, on the plate as I wasn't sure if it would harm the plate at all. I have some here and will give that a go as well.


Happy Holiday!

Tom     

[cnr6400]

  Hi Tom, just FYI I have used isopropyl (rubbing) alcohol on a paper towel - moist, not wet - for cleaning the glass bed on my old Ender 3 and the PEI bed plate on my newer Sovol SV01 printer for several years. Usualy wipe it every 5 or 6 prints, or if I see human or shop elf fingerprints on the bed plate. No bad effects to either type of bed plate so far, and prints stick well when the bed's clean. Hope this helps. 

[wagnmkr]

Thanks Cnr6400. That is good to know.

The elves have been threatened with banishment to the North Pole if they get their grubby mitts on the build plates. I, on the other hand, give the orders and don't completely follow them.

I do wash the plates regularly and the high hold hairspray works a treat, but, turning up the wick to 70c has done wonders. Four gears printed today, no elephant type feet, and no lifting so I am a happy bunny.

I will give the alcohol a go tomorrow as I have another full day of printing to go through.

Cheers

[crueby]

Sounds great!   The instruction  manual  for my prusa printer calls out using the isopropyl  for the build plate, when the plate is at room temp so the alcohol doesn't  evaporate  off to quickly. Looking forward to seeing the  clock go!

[AOG]

One thing to watch out for when cleaning with isopropyl alcohol is that if it touches your fingers it will pull the oils from your fingers and deposit them as a smear on the bed. Be sure you are wearing gloves or ensure that the part of the paper towel you’re holding is dry or you will just make things worse.

Tony