(Update Aug 29th, 7:00pm AEST)
I have just finished shooting a new TGT on the furnace - I'll narrate it tomorrow, and expect it to be uploaded the following day
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(Update Aug 28th, 9:30am AEST)
Pouring some copper and aluminium with these molds today for the next TGT
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(Update Aug 24th, 8:00pm AEST)
A1 is in progress - the teeth have been cut, and the driving rectangle marked out for filing. I find it interesting that the Maker chose a rectangle instead of a square. It confines the mating arbor/handle of the original device to only 2 possible orientations, rather than 4 - Possibly implies a flat paddle grip instead of a circular wheel handle, but so far the true significance (if any) escapes me.
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(Update Aug 23rd, 9:30pm AEST)
The band from yesterdays post is now soldered into place. Note the tiny spherical globules of residue solder in the foreground just in front of the hole (you may need to zoom in on the pic). There are several similar sized radio dense spheres in the CT scans of the original device - A sure sign that solder was used during the fabrication of the original device.
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(Update Aug 22th, 8:30pm AEST)
Experimented today with a hand held former to shape a piece of sheet brass into a band.
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(Update Aug 20th, 12:30pm AEST)
This won't make it to a regular video, but I thought it worth sharing anyway - a short video of the brilliant green Boron flame generated when powdered Boric Acid is ignited with a standard LPG torch
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(Update Aug 18th, 3:00pm AEST)
Hmm... that stock looks familiar! Soon to become the AM's Input Crown Wheel Assembly
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(Update Aug 12th, 4:30pm AEST)
On the home stretch of the edit for BSC Ep 5 - will be recording dialogue tomorrow
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(Update Aug 10th, 9:00pm AEST)
The beginning of the 7 tooth ratchet - 1 tooth for each day of the week
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(Update Aug 9th, 4:00pm AEST)
What's there not to love about slicing into a nice fresh chunk of brass!
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(Update Aug 7th, 9:00pm AEST)
The rest of the BSC wheel arbors - I still have to complete the input arbor to complete the set
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(Update Aug 6th, 7:00pm AEST)
A tiny little arbor for the Byzantine Sundial Calendar
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(Update July 29th, 7:30pm AEST)
I've spent the last 2 days doing some prototype castings for a future video. I'm loving the new furnace, super fast to temperature and easy to move around - here is the first brass pour from today (SHORT VIDEO)
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(Update July 24th, 10:30pm AEST)
I finished the narration and editing for The Antikythera Mechanism Episode 4 today - It's uploading at present, and should be finished uploading in about approx 10 hours.
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(Update July 21st, 12:00pm AEST)
Its one of the oldest methods for fastening 2 metal parts together, yet there is surprisingly little written in the common texts about rivet setting/peening technique.
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(Update July 17th, 8:40pm AEST)
They will experience only shear load, but I'm not taking any chances with these rivets - putting a decent chamfer on the hole so that they can really spread out when peened.
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(Update July 16th, 9:20pm AEST)
A few viewers have asked that I investigate some traditional marking out possibilities - the most popular suggestion being candle soot. It was very easy to apply, and I managed to avoid spilling wax on the dividing plate which was a relief! Full results in the video
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(Update July 15th, 8:00pm AEST)
One thing I love about this device is that what we now regard as standard clockmaking techniques are all applicable. But what was it like to have been solving these issues for the very first time? Tonight I made a couple of bosses/pins to help bring B1, B2 and a spacer plate into alignment for marking, drilling and then riveting.
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(Update July 14th, 9:00pm AEST)
Shooting has continued over the last few days for the next AM episode. This evening I've been putting those new files to work - this is B2 in progress, soon to be riveted to B1 - (and not a banana in sight...)
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The raw materials for The Antikythera Mechanism Episode #4, The Input Crown Wheel Assembly.
Clickspring
2017-08-05 06:08:25 +0000 UTCLuke Pettit
2017-08-05 04:58:10 +0000 UTCClickspring
2017-08-02 21:30:08 +0000 UTCClickspring
2017-08-02 21:29:26 +0000 UTCIan Douglas
2017-08-02 21:27:13 +0000 UTCAdam Seymour
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2017-08-01 19:32:22 +0000 UTCDrew
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2017-07-21 06:29:07 +0000 UTCChris Talbot
2017-07-21 05:58:36 +0000 UTCDavid Paterson
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2017-07-14 20:41:18 +0000 UTCClickspring
2017-07-12 21:03:52 +0000 UTCClickspring
2017-07-12 21:00:25 +0000 UTCTerry L Lembke
2017-07-12 15:17:38 +0000 UTCAlex
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2017-07-10 00:35:57 +0000 UTCDan Cowsill
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2017-07-09 20:38:12 +0000 UTCClickspring
2017-07-09 20:36:18 +0000 UTCClickspring
2017-07-09 20:35:27 +0000 UTCAdam Seymour
2017-07-09 14:51:16 +0000 UTCRalph McCoy
2017-07-09 13:39:18 +0000 UTCRalph McCoy
2017-07-09 13:37:44 +0000 UTCClickspring
2017-07-09 11:28:03 +0000 UTCMarton Nagy
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2017-07-09 10:51:40 +0000 UTCClickspring
2017-07-09 10:51:30 +0000 UTCGregor Shapiro
2017-07-09 08:29:56 +0000 UTCPaul Miller
2017-07-09 08:00:06 +0000 UTCClickspring
2017-07-09 07:38:35 +0000 UTCClickspring
2017-07-09 07:36:21 +0000 UTCMy name is Rick
2017-07-09 07:24:50 +0000 UTCDylan T
2017-07-09 06:47:57 +0000 UTCClickspring
2017-07-09 05:18:23 +0000 UTCChris
2017-07-09 04:39:23 +0000 UTC