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Hopper Barge
4 Posts · 5 Followers · 5 Photos · 17 Likes
Began 15 days ago by
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Latest Post 4 days ago by
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📝 New blog
4 days ago by 🇬🇧 SimpleSailor (
Sub-Lieutenant)
Sub-Lieutenant)✧ 15 Views · 1 Like
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Having not done a build blog before I didn't realise I could have just updated this blog. However I ended up creating a new blog "Update to Hybrid Hull" so this continues there..🤔
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AlessandroSPQR
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📝 Hull ideas
11 days ago by 🇬🇧 SimpleSailor ( Sub-Lieutenant)
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While looking into hull design to reduce print time I have come up with another idea. So Fig 1. is the original idea where the ply/balsa was sandwiched between the hull walls and Fig 2. has the ply/balsa as cladding on the outside of the hull. They both take about the same amount of time to print: 2.5 hours per 50mm height. This is better than the solid plastic hull at 7.25 Hours per 50mm. It is just a case of which one would be nicer to work with.
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📝 New idea for printing
13 days ago by 🇬🇧 SimpleSailor ( Sub-Lieutenant)
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Having just put the barge design into the slicer and looked at the printing times which were very long (30 odd hours) I had a thought 😀. Why not print the hull in Spiralised Vase Mode. This gives one wall (0.8mm thick) on the inner and outer. It has no change of level steps as it prints a continues line and gives a very smooth surface. So the experiment goes on. The infill is only suitable for the long lengths of the hull. The stern and bow will still be normal plastic prints with infill. The infill can be 3mm ply or Balsa. Maybe ply as it will give it some weight. The hull will of course be sealed and painted.
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💬 Re: New idea for printing
13 days ago by 🇬🇧 SimpleSailor (
Sub-Lieutenant)✧ 30 Views · 0 Likes
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Hi Boatshed. It is a difficult thing to quantify without putting a Watt meter in circuit with the printer. However my printer has a 300 Watt power supply. That does not mean it uses 300 Watts, it is what is available. The heated bed and the hot nozzle are controlled by a PWM (Pulse Width Modulated) signal so are not on all the time. The average power used would have to be taken. I might actually measure the AC current one day and work it out. As an estimate, if you were paying £0.26 per KWH (per 1000 watt hour) and the printer used an average of 200 Watts it would cost £0.052 per hour, so 30 hours of print time would be £1.56. For me it is about the time hanging around waiting for it to print. The cost does not bother me. I try and design my items to be robust but print fast.
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💬 Re: New idea for printing
13 days ago by 🇬🇧 BOATSHED (
 Commander)✧ 28 Views · 0 Likes
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Ian confused with the 3d printing, you say 30 odd hours??
What does that add to your electric bill ?? ▲
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📝 Hopper Barge
15 days ago by 🇬🇧 SimpleSailor ( Sub-Lieutenant)
Sub-Lieutenant)✧ 71 Views · 12 Likes · 3 Comments
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A friend of mine has asked me to make him a Hopper type barge to tow behind his tug. He already has a scratch built shoe box, but it does not tow well and doesn't look the part. I will be 3D printing it and I have designed it in FreeCAD. Attached is my first attempt. I should mention that it has to fit in his transport box. It is, length-542 x beam-150 x depth-120 mm. The sections are glued together and use the 1.75mm filament as location pins. The bow section can be used as a stern.
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💬 Re: Hopper Barge
14 days ago by 🇬🇧 PeterJ (
 Chief Petty Officer 1st Class)✧ 37 Views · 2 Likes
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Looks good can you make these for sale ?
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Remove Ads 💬 Re: Hopper Barge
15 days ago by 🇦🇺 B rian J ames (
 Master Seaman)✧ 56 Views · 3 Likes
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Keep it 'Simple Sailor'?, Have U tried skeg(s), aft, & or a 'yoke & or bridle' forward? 'B J', 'B'ad Dad 'J'oke???). 🤔 ( No 'Yoke' intended, let alone a pun. I'm normally very 'punny'? 🤣 All the best.
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SimpleSailor
hermank
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💬 Re: Hopper Barge
15 days ago by 🇮🇹 AlessandroSPQR (
 Admiral)✧ 58 Views · 4 Likes
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Bravo SimpleSailor, well done.
I am very interested in the program you mentioned FreeCad, but I do not know it. I assume it is free, according to its name. How do you like FreeCad? Can you make hulls with more curved lines? ▲
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