R13 Frames

JayKay9 · Post by **JayKay9** » Tue Jan 21, 2003 11:05 am

I have cut out the panels and am about to tackle the frames on my R13. I can´t seem to make sense of the full size drawings. I plotted the measurements on some scrap and they don´t agree with the drawings. The Full Size drawings are on a sheet labeled FS Frames. Also what is the " inter frame " Regards John Kinnane

Post by **jacquesmm** » Tue Jan 21, 2003 12:01 pm

Let´s draw one frame from the dimensions, step by step. First, read our HowTo file titled "How to cut a plywood frame". The only difference in this case is that the baseline is above the frame, not below. For each frame, you need only two points per side: the sheer and the chine. Let´s do the mid frame of the R13. Take a piece of plywood and mark your centerline as shown in the HowTo file. Mark the sheer point: from drawing 99/1, you can see that it is 1´ below the baseline. Draw a line. From the same drawing, you see that the sheer point is 2´ 1-3/8" away from the centerline: mark the point. Proceed the same way for the chine point. Copy (mirror) the points to the other side of the centerline. Join all the points and you have the outline fo the mid frame. This is easier to do than to explain. It takes around 60 seconds total once you get the idea. Look at the HowTo file, it should work. [ This message was edited by: jacquesmm on 21-01-2003 12:03 ]

JayKay9 · Post by **JayKay9** » Thu Jan 23, 2003 3:03 am

Thanks for the reply Jaques and I understand the method you describe, which is what I have done but why does this not agree with the drawings on the plan sheet labelled FS Frames and also what is the ´inter´ detailed on this sheet. Regards John K

Post by **jacquesmm** » Thu Jan 23, 2003 9:22 am

Dimensions differences: please tell which dimension is different like: - on FS pattern, sheer width of mid frame is 15", on lines drawing, same dimension is 16". Since many of those boats were build form the same plans, there is a mystery there but we´ll solve it. The answer may be below . . . I hope not . . . Inter : I don´t see that word on any of the drawings. Are you certain that we are talking about the same boat? I have a one fear: could it be that the FS pattern drawing comes from another boat? A packaging mistake? To avoid confusion, the drawings are labelled. The FS pattern drawing for the R13 has a title block in the lower right corner. The drawing name is 13´ 4" Row Boat Frames - Full sise patterns # E99/4 Does that match? If not, what is the label? The only drawing of the same type on which we use the word inner frame is the SC15 but you would have seen that, the name of the boat is different in the title block. [ This message was edited by: jacquesmm on 23-01-2003 09:28 ]

Post by **jacquesmm** » Fri Jan 24, 2003 10:23 am

Hello? Even if the problem is solved , I would like to know what happened.

JayKay9 · Post by **JayKay9** » Sat Feb 01, 2003 2:09 am

Hi Jaques, Sorry for the delay in repling but I have been flat out like a lizard. The sheet in question only have the notation "F S Frames". No reference to the R13 as the three other sheets do. I suspected that it may have been a ´picking´ problem in the warehouse. I used the method of measuring instead and am now ready to start stitching. Regards John Kinnane

JayKay9 · Post by **JayKay9** » Sun Feb 02, 2003 2:45 am

Re R13-Metric Hi Jaques On sheet D99/2 The rear seat frame is shown 1379 mm aft of the mid frame on the Sheer side view. On the Bottom side it is shown at 762 aft of the middle. If you look at sheet D99/1 on the plan or side elevation the rear seat frame is approx 1070~1080 aft of mid frame.

Post by **jacquesmm** » Mon Feb 03, 2003 9:34 am

From the pictures, it looks like it went together smoothly. I am not certain that I understand the question but the location of the seats (frames) is on the lines drawing: 99/1, bottom right. The rear seat frame is exactly at 2745 from the origin which is the cutwater which is the tip of the bottom panel. The other lines, on 99/2, are used to draw the outline of the panels and will never correspond: a projection is different from an unrolled panel. I agree that the leaders with the notes don´t make sense, we will remove them to avoid confusion. We also changed the layout of the drawing: the Row 13 was designed along an old standard which is correct but not as easy to read than our new designs. Thanks for the feedback and the hull looks good.

JayKay9 · Post by **JayKay9** » Wed Feb 19, 2003 6:18 am

Hi Jaques, R13 My problem was that the fourth sheet was not labelled at all except with FS FRAMES. As for your comment about the projection being different from an unrolled panel, I would suggest that you unroll a set of plans and you will see that one is instructed to mark the frame positions but the rear upper varies from the rear bottom by about 300 mm while the front upper and front lower vary by only 2 or 3 mm. I realise that this is a big learning curve for most of us but I think in this case I got the wrong sheet and another is out to blazes. If you like I will post the 4 sheets back and you can tell me where my problem is.

Post by **jacquesmm** » Wed Feb 19, 2003 11:47 am

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD>Quote:<HR></TD></TR><TR><TD><BLOCKQUOTE> On 2003-02-19 06:18, JayKay9 wrote: Hi Jaques, R13 My problem was that the fourth sheet was not labelled at all except with FS FRAMES. As for your comment about the projection being different from an unrolled panel, I would suggest that you unroll a set of plans and you will see that one is instructed to mark the frame positions but the rear upper varies from the rear bottom by about 300 mm while the front upper and front lower vary by only 2 or 3 mm. I realise that this is a big learning curve for most of us but I think in this case I got the wrong sheet and another is out to blazes. If you like I will post the 4 sheets back and you can tell me where my problem is. </BLOCKQUOTE></TD></TR><TR><TD><HR></TD></TR></TABLE> Is this a question or just a note about a 2 or 3 mm difference? For most plans, our dimension tolerance is set to 1/8´ = 3mm in metric. That is all the precison we need. Therefore, such small differences are perfectly correct. And anyway, who besides a machine can cut plywood with such precision?

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