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 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
13th Sep, 2010 at 11:42:34pm
How about longer suspension arms and a different hub (maybe based on the rover metro one) to reduce the scrub radius. On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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 568 Posts Member #: 1200 Post Whore Bristol |
15th Dec, 2010 at 02:39:01pm
just to update on this , i took a box load of parts into the office, including radius arm, top arm, mech fuel pump and other mech bits.
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
15th Dec, 2010 at 04:12:23pm
On 15th Dec, 2010 pickmeup said:
The lads have chosen a cooper s caliper and ive scanned it using the FARO arm and generated a point cloud. Does anyone on here use Catia as I need to find someone with the DSE (Digitizedshape editor) workbench, so i can convert the point cloud into a 3d surface model so i can then turn it into an STL file. I occasionally use a Faro arm at work with Polyworks scanning software. We quickly gave up on its ability to scan, and generate parts from the scan. The best thing we've found is to convert the point cloud triangles to a polygonal model, then export as an IGES. The iges can then be imported into a blank assembly, a new part made in the assembly using the iges as a reference.... It is also a good idea to put reference cylinders and planes into the polygonal model - the point cloud data 'cylinder' is not a perfect cylinder; it looks like something whittled away with a pocket knife... These scanners are generally aimed at 'inspection' - ie to measure specific points using the software to 'best fit' geometrical shapes such as cones, planes, cylinders through each specifica point-cloud area that is to be focused on. These geometrically perfect surfaces can then be measured very accurately in the software. You can also use them to import CAD software, align to the scan, and do a direct comparison between the real and the intent parts - this is where they REALLY excell. What they don't appear to do well, unless you want to spend hours and hours of post processing (deleting or smoothing out each and every point in the cloud) is to scan, and manufacture a scanned part on a CNC mill or whatever. It might work with what you're proosing, but unless you get that cloud perfect, it'll look like a crap surface finish on the part, and take away from the satisfaction of the project. Personally - I'd do as I suggest and make a new file using the scan as a guide for key dimensions and the like. Edited by turbodave16v on 15th Dec, 2010. On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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568 Posts Member #: 1200 Post Whore Bristol |
16th Dec, 2010 at 01:02:47pm
alright dave, i used to use the FARO arm at airbus a few years back for checking jigs and parts for quality and checking against the drawing, we took 5000 scanned 3D points of the caliper and its definitely not enough as i got my copy of catia working on the laptop last night and created a surface from the cloud points, will post a piccy up later.
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
16th Dec, 2010 at 03:55:02pm
Sounds like you have a plan. You would always have to do work in CAD anyways, because there is no way you can get around machining the piston bore or seal groove is there (I don't know about the process you mentioned, but find it hard to believe it can turn out machined bore finishes) so you need to add material for machining allowance anyway? On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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568 Posts Member #: 1200 Post Whore Bristol |
16th Dec, 2010 at 04:25:42pm
yeah the surface finish with laser sintering is comparible to a cast surface so you need secondary operations / machining, its more to do with the optimised design process so you can make structural and mechanical parts that weigh a significant amount less and that look completely different. |
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568 Posts Member #: 1200 Post Whore Bristol |
13th Mar, 2011 at 09:45:23pm
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
13th Mar, 2011 at 10:00:28pm
On 13th Mar, 2011 pickmeup said:
can you guess what it is yet?? :) Is there a clue in the title of the video? Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
13th Mar, 2011 at 10:37:31pm
Its a LASER light show from the eighties
On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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568 Posts Member #: 1200 Post Whore Bristol |
13th Mar, 2011 at 10:51:39pm
nah :)
On 13th Mar, 2011 Rob H said:
On 13th Mar, 2011 pickmeup said:
can you guess what it is yet?? :) Is there a clue in the title of the video? |
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
13th Mar, 2011 at 10:58:44pm
3d scanner On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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568 Posts Member #: 1200 Post Whore Bristol |
14th Mar, 2011 at 01:14:21pm
its actually the laser sintering machine in operation, i will post pics up later of the scanned part and the finished part. |
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 209 Posts Member #: 6451 Senior Member South East Northumberland |
14th Mar, 2011 at 08:43:50pm
On 13th Mar, 2011 pickmeup said:
some of you may have seen the nylon stronger than steel :) bike on the news last week? that was the lads that i work with that done this job for me. Yeah I saw this on the local news lat week - I take it you're working for EADS now Garry? I live just over the road from this place now! (Is this going to be for the Marcos then? :)) |
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568 Posts Member #: 1200 Post Whore Bristol |
14th Mar, 2011 at 09:27:48pm
nah not for the marcos, it was actually for a MOD tech demo but im hopefully going to make a pair for the marcos :) |
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568 Posts Member #: 1200 Post Whore Bristol |
14th Mar, 2011 at 09:38:30pm
not a bad weight saving and thats just one half of the caliper
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 1596 Posts Member #: 8027 Post Whore Thrapston, Kettering, Northants NN14 |
14th Mar, 2011 at 11:49:52pm
What have you done to it? On 17th Feb, 2011 apbellamy said:
I popped my first one out the other day... |
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
15th Mar, 2011 at 07:42:56am
Given that steel is 1.7 times as dense as titanium, I suspect that the first photo is an OEM caliper whilst the second is the Ti caliper. Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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568 Posts Member #: 1200 Post Whore Bristol |
15th Mar, 2011 at 09:36:42am
well done rob, gold star for you, we scanned the S caliper and reproduced it in titanium so its almost exactly the same but i had to model the seal groove and a couple of holes as I forgot to measure them at the time of scanning. I didnt think the weight saving would be that much. |
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1083 Posts Member #: 8932 Post Whore |
15th Mar, 2011 at 10:05:05am
thats cool remaking it in ti, great for those who want to keep the original s caliper and still loose the weight. Does anyone know how much a kad 4 pot caliper weighs in comparison? |
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