In defence of Ormerod January 23, 2014 08:57AM |
Registered: 10 years ago Posts: 103 |
Re: In defence of Ormerod January 23, 2014 09:11AM |
Registered: 10 years ago Posts: 578 |
Re: In defence of Ormerod January 23, 2014 09:21AM |
Registered: 10 years ago Posts: 147 |
Re: In defence of Ormerod January 23, 2014 09:35AM |
Registered: 10 years ago Posts: 103 |
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rayhicks
All good points Arnaud31 - it would be very easy to get the wrong impression of what is basically a good machine made by a proactive company from looking at the forum, though the forum discussion has contributed a lot to the very rapid improvements, particularly in firmware, that make the machine what it is now.
Those parts look impressive - no wonder you've got through so much filament! You must have clocked up quite a few hours just printing the samples you've shown
Cheers
Ray
Re: In defence of Ormerod January 27, 2014 05:36AM |
Registered: 10 years ago Posts: 48 |
Re: In defence of Ormerod January 27, 2014 06:11AM |
Registered: 10 years ago Posts: 103 |
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Squags
A point well made - the Ormerod is already a very useful tool.
Just one question - Did you have any problems with warping on such designs?
I made what can best be descibed as a 160mm diameter x 10mm thick cog and it warped about 2-3mm around about 1/4 of the edge. That was with a rudimentary fan duct (which appeared to make negligible difference), but in a fairly cool room (15-17C - not drafty). I'm thinking either sli3er settings (maybe more base layers) or an upturned (empty) fish tank to increase the ambient temperature might help... Just wondering if you had similar problems?
Thanks,
Squags
Re: In defence of Ormerod January 27, 2014 06:39AM |
Registered: 10 years ago Posts: 14,672 |
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arnaud31
Generally I find that parts with such large foot print are very difficult to remove from the bed after a print.
Re: In defence of Ormerod January 27, 2014 06:51AM |
Registered: 10 years ago Posts: 314 |
Re: In defence of Ormerod January 27, 2014 07:49AM |
Registered: 10 years ago Posts: 103 |
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dc42
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arnaud31
Generally I find that parts with such large foot print are very difficult to remove from the bed after a print.
That's one of the advantages of printing PLA direct on glass. The print adheres well while printing - provided you have the bed level and the nozzle height just right to get a good first layer - but when you cool the bed to room temperature, the print almost falls off.
Re: In defence of Ormerod January 27, 2014 10:22AM |
Registered: 10 years ago Posts: 53 |
Re: In defence of Ormerod January 27, 2014 12:14PM |
Registered: 10 years ago Posts: 103 |
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pocketmoon
I think there's two things RepRapPro could easily do to improve the end-user experience.
1) Source better components, simple things like fans. My orginal RepRap Mono Hot End fan would stop turning mid print (resulting in jamming) and the replacement fan wouldn't run at all.
2) Ship a printer capable of printing ABS without modification. The kit PLA parts that get hot and warp when printing at ABS temps leading to poor prints and frustration.
Re: In defence of Ormerod January 27, 2014 02:49PM |
Registered: 10 years ago Posts: 2,472 |
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arnaud31
Although I only print PLA for "health&safety" reason I think you are right, some ABS parts would have made sense. Perhaps RepRap could have this as an option, for another £10-£20 i am sure there would be a lot of takers. I guess the problem for RepRap is that they print their parts, rather than say injection mould it (which would be prohibitive), and ABS is too much hassle for production printing;
Re: In defence of Ormerod January 27, 2014 04:15PM |
Registered: 10 years ago Posts: 300 |
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dmould
Yes, 3D printing is really great and all, but it is definitely not (yet) suitable for any sort of mass production. Apart from the time, there is zero economy of scale and quality control is more problematic. As demand increases, I feel that RepRapPro will have to abandon the idea of printing, even though it might go somewhat against their ideals - you eventually find it a lot better if you use the correct tool for the job!
(#106)
Re: In defence of Ormerod January 27, 2014 04:15PM |
Registered: 10 years ago Posts: 103 |
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dmould
"Protomold" (http://www.protolabs.co.uk/) for low to medium volumes.
Dave
(#106)
Re: In defence of Ormerod January 27, 2014 06:02PM |
Registered: 10 years ago Posts: 33 |
Re: In defence of Ormerod January 28, 2014 08:52AM |
Registered: 10 years ago Posts: 2,472 |
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arnaud31
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dmould
"Protomold" (http://www.protolabs.co.uk/) for low to medium volumes.
Dave
(#106)
Very interesting link for another project I am working on. Would be interesting to find the life of the moulds as when I last looked into this, injection moulding moulds where anywhere from £50k to £150k a piece.
Thanks Dave.
Re: In defence of Ormerod January 28, 2014 09:00AM |
Registered: 10 years ago Posts: 2,472 |
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rm2014
...power 3d printers draw approx. 0.018 kWh
RM
Re: In defence of Ormerod January 28, 2014 02:50PM |
Registered: 10 years ago Posts: 33 |
Re: In defence of Ormerod January 28, 2014 04:48PM |
Registered: 10 years ago Posts: 33 |
Re: In defence of Ormerod January 28, 2014 07:03PM |
Registered: 12 years ago Posts: 1,236 |
Re: In defence of Ormerod January 29, 2014 07:54AM |
Registered: 10 years ago Posts: 2,472 |
That's not necessarily true - it depends what stock reserve you keep. If you have sufficient plastic parts in stock to keep your production going for the time it takes to make another mould, there is no problem, and the plastic parts are cheap enough that you can often keep many months worth of production without it tying up any significant amount of money in stock, so you don't need to adopt a JIT approach for those particular parts. We own & keep steel moulds for our long-running and high-volume product lines, and parts that are common to many products, but the cheap & cheerful moulds are great for products that have low production runs or a short market life expectancy - in the electronics industry many products have a market life of under 2 years because of the rate of change of technology (and fashion), and whilst we can sometimes fit a new design into an old case, usually they need a case redesign as well. Also, some of our products are for niche markets where total production is not expected to top 1000 units (if that) - too high to mill each part individually, but too low to justify high tooling costs.Quote
rm2014
On a commercial point any business would be mad not to have control of its production tooling, if there is a problem (and eventually there always is) the damage caused will be severe, you just cannot make stuff to sell until the tools are replaced, which will kill your cash-flow. All our principal tooling is duplicated and held at two different moulders, one of which went bust last year, (thankfully now recovered).
RM
Re: In defence of Ormerod January 29, 2014 04:25PM |
Registered: 10 years ago Posts: 33 |
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dmould
it depends what stock reserve you keep. If you have sufficient plastic parts in stock to keep your production going for the time it takes to make another mould, there is no problem, and the plastic parts are cheap enough that you can often keep many months worth of production without it tying up any significant amount of money in stock,
Dave
(#106)
Re: In defence of Ormerod January 30, 2014 05:56AM |
Registered: 10 years ago Posts: 2,472 |
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rm2014
That's not necessarily true-
If your moulder goes bust you will lose all your tools not just one, replacements could cost 100's of 1000's.
Re: In defence of Ormerod January 30, 2014 06:38AM |
Registered: 10 years ago Posts: 32 |
Re: In defence of Ormerod January 30, 2014 09:34AM |
Registered: 10 years ago Posts: 2,472 |
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badman.teddy.edward
I can take a series of zeros and ones I created or someone else did and kindly decided to share with me and produce from them a shape desired by myself, whilst in my home, out of ABS or PLA very ACCURATELY.
How can I complain about that? My life, as far as plastic reproduction goes is sorted.
Serious big thank you to RepRapPro, Ian, DC42, and the rest of the contributors here (and those who were involved in previous models development) for making my world of plastic far better.
Nicely, nicely.
Re: In defence of Ormerod January 30, 2014 09:50AM |
Registered: 10 years ago Posts: 37 |
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dmould
I think that by far the biggest plus (for myself, anyway), is how just having the means to print 3D objects had broadened the way I think about designs. Just knowing that I can have an object in my hand the same day I design it, no matter how complex the shape, with no construction effort, preparation, manual ability, material sourcing, tools or post-work clean-up needed has altered the way I think about designs and my motivation to start a personal project. When I look at construction projects in magazines or online, I immediately look to see how the construction could be simplified or enhanced by the use of printed parts. It's similar to the way that FPGA's affected me regarding digital electronic designs.
Dave
(#106)
Re: In defence of Ormerod February 01, 2014 07:12AM |
Registered: 10 years ago Posts: 32 |
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FalseIdle
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dmould
I think that by far the biggest plus (for myself, anyway), is how just having the means to print 3D objects had broadened the way I think about designs. Just knowing that I can have an object in my hand the same day I design it, no matter how complex the shape, with no construction effort, preparation, manual ability, material sourcing, tools or post-work clean-up needed has altered the way I think about designs and my motivation to start a personal project. When I look at construction projects in magazines or online, I immediately look to see how the construction could be simplified or enhanced by the use of printed parts. It's similar to the way that FPGA's affected me regarding digital electronic designs.
Dave
(#106)
Yes Dave, exactly this for me as well. Always thinking up little ideas for projects or to fix something but my skills and access to the tools needed to make them in wood,metal or plastic were never there. Once I get my quality up to or near that pictured around here I have a back log of things to do. Very satisfying.
Dan.
Re: In defence of Ormerod February 03, 2014 07:37AM |
Registered: 10 years ago Posts: 2,472 |
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badman.teddy.edward
Damn straight. I work in an industry where development of new ideas is really slow and this has enabled me to start trying those ideas far quicker. (Really though it is custom parts for RC things that makes me happiest)..
Re: In defence of Ormerod February 07, 2014 06:18PM |
Registered: 10 years ago Posts: 33 |
Re: In defence of Ormerod February 08, 2014 07:20AM |
Registered: 10 years ago Posts: 256 |
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rm2014
[...] I am not sure whether to consign it to the trash or keep on trying to make it work. [...]