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Discussion Starter · #1 ·
So my next project is Jörg Sprave's bullpup slingshot rifle. <br>I decided it's a pain cutting it out with a jigsaw. Takes a long time and can be inaccurate. So why do that when my school has a laser cutter? <br>I'm going to try and persuade my teacher to let me use the laser cutter and then it will be precisely cut in about 40 minutes.<br><br>I digitalised Jörg's designs in 2dDesign CAD software and made a couple of very minor tweaks.<br><img src="http://i49.servimg.com/u/f49/17/09/25/25/bullpu10.png" border="0" alt=""><br><br><br>Unfortunately I'll have to wait till Monday to ask, but I just thought I'd share now.<br><br>PandaMan<br>
 

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Discussion Starter · #4 ·
Yes, it does burn a little bit, but it's nothing that can't be sanded off.<br>I will use 12mm plywood.
 

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Im from Holland, isnt that weird?
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that will definitely come out nice(that will be the first time that somebody cant wait till Monday:D )
 

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Discussion Starter · #6 ·
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>onnod wrote:</b></span></td></tr>
<tr><td class="quote">that will definitely come out nice(that will be the first time that somebody cant wait till Monday:D ) </td></tr>
</table>
<span class="postbody"><br><br><img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"> I am looking forward to Monday... Sounds weird saying that. <img src="http://illiweb.com/fa/i/smiles/icon_razz.gif" alt="Razz" longdesc="9"><br><br>Unfortunately there is about a 50% chance my teacher won't let me. In which case I'll have to try and use my cheap jigsaw.</span>
 

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Im from Holland, isnt that weird?
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good luck,<br>just tell him something like that it is good for your technical skills and stuff like that(in the worst case you say you will write a report(everything for a slingshot))
 

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Discussion Starter · #8 ·
lol thanks. I'll think of something. I worked hard on tracing the design from Jörg's PDFs and this will make the job a lot easier and quicker.
 

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is it ok if I take this design? I like it better than Jorg's blueprints, nice and clean, easy to make measurements and adjustments.
 

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Discussion Starter · #10 ·
Yes, you can take it. But the picture I posted won't be to scale.<br><br>Only the 2ddesign schematic will be full scale. You could scale the picture up to the right dimensions, or if you happen to have the software "2DDesign" I could send you the actual schematic.<br><br>I have no problems with you taking those designs, one way or another, because they are still Jörg's but just in a different format.
 

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Discussion Starter · #12 ·
yeah, sure.<br>I can't attach it to the post, so here's a download link.<br><br><a href="http://www.mediafire.com/?qsz888nj44a0oy6" class="postlink" target="_blank" rel="nofollow">http://www.mediafire.com/?qsz888nj44a0oy6</a>
 

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I have quite a different design that I am working on, so I just want to use the basic dimentions, e.g. "barrel" length, pulley spacing, rubber mount spacing and the distance between the pulleys and rubber mounts. The body and trigger system will be somewhat different. I can not open the file that you have posted, however. I have 2dDesign V2, but it states that the file is from a later version of the softwae and cannot be opened.<br><br>We have access to a laser cutter at the university, but I am planning on using a steel construction. Would it be possible for you to add the basic dimentions to your schematic or maybe re-post the file in .dxf format?
 

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Discussion Starter · #16 ·
Hmmm... I can't get a .dxf file of it. Let me think of something.<br><br>Edit:<br><br>Okay, save the picture in my first post.<br>Create a new 2dDesign file and make it 700mm by 550mm.<br>Import the picture and make it 700mm wide and make sure the 'Fix aspect ratio' box is selected. Then you can just trace over the design and then delete the picture.<br>Hope that helps.
 

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Discussion Starter · #19 ·
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>Eggster wrote:</b></span></td></tr>
<tr><td class="quote">That helped me getting the dimentions without even having to re trace the schematic. Thank you for the assistance</td></tr>
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<span class="postbody"><br><br>You're welcome. Glad to help. <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"></span>
 

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Thanks, all I needed was the picture, I can draw up measurements and other schematics once I print it at regular printer paper size.
 
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