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cumberdale
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I am having difficulties replicating that super high gloss surface you guys achieve with the S120 Advanced Board & Mould Sealer on the epoxy mould.
Last time my epoxy mould didnt look that bad after spraying, but after denibbing with 1200 grit it looked really bad with lots of streaks. It is hard for me to say whether I sprayed may be too much (at some points the S120 ran down the edges of the mould, at others not), too little, or whether I used too much of the 1200 or too little. And applying S120 via Lint Free Solvent Application Wipes afterwards did not resuce the mould either: with these wipes I had the feeling they do not add enough S120 in one go.
I suspect my problems start with the spraying: when there are streaks visible after denibbing with 1200, does that indicate that I spayed on too much S120 in one go?
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Matt (Staff)
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+xI have a question about cleaning the epoxy mould after sanding it with 800 grit paper. It says in the video: "After sanding all of the dust should be carefully removed using a dry cloth". And then a Microfibre Polishing Cloth as well as a Lint Free Solvent Application Wipe are shown. Just to make sure: cleaning the freshly sanded epoxy mould with Easy-Lease Mould Cleaner is not necessary? Also I found that after sanding the epoxy mould with 800 grit paper it can be useful to carefully remove dust from corners with a toothbrush. Depending on the geometry of the mould reaching these corners can be hard when using a cloth. Hi, That's right, mould cleaner would not be necessary. If you've flatted the surface using 800 grit then it should be a clean, virgin surface where you only need to remove dust. If you are in any doubt about whether grease or other contamination could be present (grease off your hands for example) then mould cleaner would be a good idea but in most cases this wouldn't be necessary. Your suggestion of a toothbrush to get into the corners is a good one and another option might be a high pressure air blast (from a compressor) but make sure that the air line does not have an inline oiler; this would certainly defeat the objective!
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cumberdale
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Group: Forum Members
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I have a question about cleaning the epoxy mould after sanding it with 800 grit paper. It says in the video: "After sanding all of the dust should be carefully removed using a dry cloth". And then a Microfibre Polishing Cloth as well as a Lint Free Solvent Application Wipe are shown.
Just to make sure: cleaning the freshly sanded epoxy mould with Easy-Lease Mould Cleaner is not necessary?
Also I found that after sanding the epoxy mould with 800 grit paper it can be useful to carefully remove dust from corners with a toothbrush. Depending on the geometry of the mould reaching these corners can be hard when using a cloth.
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Theaumoix
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+xThere are a lot of CNC routers at startups and small companies but since they are used for their own product development I guess it is difficult to get access to them. Maybe it could be an idea to start a forum section for this in the future? Even if you have the money for a small CNC kit you will probably soon find you will need a larger, more powerful and robust one. My new build will be ready Q1 2018 if you haven't found a solution before then  That's a really good idea actually. Personally i'd be quite interested in such a platform within this forum. because my CNC needs are typically for just occasional mold making so i'd looking to outsource that to someone who has all the right materials in house rather than lobby around at local machining shops with a chunk of tooling board and finish the job by hand at home. plus, like you mentioned, since these machines are often upgraded and eventually replaced by bigger better equipment i'd also like to get in touch with anyone that may be looking for a buyer of his previous setup. :-p
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Matt (Staff)
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+xThere are a lot of CNC routers at startups and small companies but since they are used for their own product development I guess it is difficult to get access to them. Maybe it could be an idea to start a forum section for this in the future? Even if you have the money for a small CNC kit you will probably soon find you will need a larger, more powerful and robust one. My new build will be ready Q1 2018 if you haven't found a solution before then Hi Anders, that's a good idea. We're going to put some work into driving more activity to this forum (after we had the technical difficulties earlier in the year); I think if the forum was nice and busy then a forum section discussing and sharing CNC equipment and expertise would be a good idea.
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Anders R
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There are a lot of CNC routers at startups and small companies but since they are used for their own product development I guess it is difficult to get access to them. Maybe it could be an idea to start a forum section for this in the future? Even if you have the money for a small CNC kit you will probably soon find you will need a larger, more powerful and robust one. My new build will be ready Q1 2018 if you haven't found a solution before then
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Matt (Staff)
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+xHi Matt,The videos are superb.I’m busy prototyping a composite Canoe and am thinking about the hull fittings.At the moment, there’d be very few pieces and I’m not fiscally in a position to buy the cnc equipment......tempting though it might be.Will EasyComposites be offering a production service? I’m thinking about producing mould plugs from cad files mostly. If yes, what are the max dimensions you can work to? Most of what I’d need, end caps, handle brackets and the like are quite small but a Canoe thwart (a bit that goes across the top, between the sides) could be up to three feet long.Cheers,Robert (anything to avoid hand finishing plugs) Maddock. Hi Robert, I'm afraid we don't have any current plans to offer a CNC service. I totally understand that investing in CNC kit isn't right for everyone or every project but this equipment is becoming increasingly accessible which is why we've started to do more tutorials aimed at people who do have these facilities. The fact that the prices of the machines is coming down does mean however that there are more 'makers' about who could potentially offer their machining services and so it's possible that if you ask around in various communities you could find a hobbyist who might be able to offer to do this machining for you. If you do jump up into the commercial world then I worry that you might still find that the prices charged for CNC machining, even for a relatively small part, might be prohibitive (and drive you into the arms of a cheap CNC machine!). All the best, Matt
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rmaddock
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Hi Matt,
The videos are superb.
I’m busy prototyping a composite Canoe and am thinking about the hull fittings.
At the moment, there’d be very few pieces and I’m not fiscally in a position to buy the cnc equipment......tempting though it might be.
Will EasyComposites be offering a production service? I’m thinking about producing mould plugs from cad files mostly. If yes, what are the max dimensions you can work to? Most of what I’d need, end caps, handle brackets and the like are quite small but a Canoe thwart (a bit that goes across the top, between the sides) could be up to three feet long.
Cheers,
Robert (anything to avoid hand finishing plugs) Maddock.
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Matt (Staff)
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+xI see! Well the Duratec has a Tg of 120C, so should handle the temperatures easily. I'll have to get some tooling pre-preg and give it a go. A pity I didn't ask this earlier, I would have got a bit of the tooling pre-preg with my order this week! 120'C; that's interesting. I'd say that's a great candidate for potential compatibility. I'll see if we can get some and do some R&D trials. Be sure to let us know if you get some results yourself, either way. Thanks Martin.
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Hanaldo
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I see! Well the Duratec has a Tg of 120C, so should handle the temperatures easily. I'll have to get some tooling pre-preg and give it a go. A pity I didn't ask this earlier, I would have got a bit of the tooling pre-preg with my order this week!
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