Heart shaped clock
Heart shaped clock
I can get my hands on some phosphor bronze for about $5.00 KG so I may even cast it in bronze yet, failing that it'll be done a aluminium
Mike
When life gets tough, remember: You were the strongest sperm
Re: Heart shaped clock
Looks like a fun project. If it's in Bronze, it's going to be heavy.
quando omni flunkus moritati
Re: Heart shaped clock
It will still be heavy but you can trim some weight by making it hollow on the back side. Take a piece of wood just a little thinner (1/8" or so) and trace a line of the profile then cut it out about 1/4" inside of the line. Mount the clock to it carefully over the hole and use is as a matchplate and that will provide the boss in the sand to make the back hollow.
Looks like it will make for an awesome gift Mike.
Looks like it will make for an awesome gift Mike.
I'd rather laugh with the sinners than cry with the saints the sinners are much more fun...
Muller
Muller
Re: Heart shaped clock
yep pretty much what I was going to try Harry , I've borrowed my son in-laws router so I'll trim it up a bit...any idea how much weight is in . 212 cubic feet of bronze, or is there a formula out there somewhere
Mike
Mike
When life gets tough, remember: You were the strongest sperm
Re: Heart shaped clock
According to reade
Bronze 509 lbs cu ft
So 0.212 cu ft would be about 107.908 lbs. Might want to thin it up a bit or take out a mortgage on the abode.
Where did you get the 0.212 number from? Is that solid thickness or after adding the hollow back because just picturing it I would thing it would be much less.
Bronze 509 lbs cu ft
So 0.212 cu ft would be about 107.908 lbs. Might want to thin it up a bit or take out a mortgage on the abode.
Where did you get the 0.212 number from? Is that solid thickness or after adding the hollow back because just picturing it I would thing it would be much less.
I'd rather laugh with the sinners than cry with the saints the sinners are much more fun...
Muller
Muller
Re: Heart shaped clock
OOPS try 0.017657 cubic feet or 30.512 cubic inches, I used a on line volume calculator http://mathcentral.uregina.ca/volume_calculator . I should stop trying to calculate while drinking the amber fluid
When life gets tough, remember: You were the strongest sperm
Re: Heart shaped clock
I calculated that as if it was a solid mass 10inch x 8 inch and 1/2 inch thick, I was never that strong with maths
And I calculate about About 8.8 lbs or 4 kgs but I could be wrong
Mike
And I calculate about About 8.8 lbs or 4 kgs but I could be wrong
Mike
When life gets tough, remember: You were the strongest sperm
Re: Heart shaped clock
Add in at least half again for bobs and you are still in the range of a small melt. Sounds much more feasible now
Might be a little bit of a pain to cut them off but I think I would place some risers on the back side. Maybe places where you need bosses for mounting clockworks or hanger gear. Just thinking that large thin area might need lots of feeding to make sure there is no tearing.
Might be a little bit of a pain to cut them off but I think I would place some risers on the back side. Maybe places where you need bosses for mounting clockworks or hanger gear. Just thinking that large thin area might need lots of feeding to make sure there is no tearing.
I'd rather laugh with the sinners than cry with the saints the sinners are much more fun...
Muller
Muller
Re: Heart shaped clock
Good idea Harry, cutting them off would be a pain but I have a horizontal vertical metal band saw that should do the job, then its a simple matter of clamping it on the mill and clean it all upHarry wrote:Add in at least half again for bobs and you are still in the range of a small melt. Sounds much more feasible now
Might be a little bit of a pain to cut them off but I think I would place some risers on the back side. Maybe places where you need bosses for mounting clockworks or hanger gear. Just thinking that large thin area might need lots of feeding to make sure there is no tearing.
Mike
When life gets tough, remember: You were the strongest sperm
Re: Heart shaped clock
Mike,
I like the idea of using CNC for your pattern-making but ...
How do you get a draft-angle on the patterns?
I've often wondered if there are tapered router (or milling) cutters available? or will I have to manually hack one from a straight cutter?
I guess that commercial pattern-makers must have something ....
Geoff
I like the idea of using CNC for your pattern-making but ...
How do you get a draft-angle on the patterns?
I've often wondered if there are tapered router (or milling) cutters available? or will I have to manually hack one from a straight cutter?
I guess that commercial pattern-makers must have something ....
Geoff