I built the one that you mention Fred with some mahogany left-overs. When a friend of mine saw it he tried to figure out what it was and then guessed it was a modern piece of sculpture.
Bill S.
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| Author: | Mike OMelia [ Tue Apr 12, 2011 2:57 pm ] |
| Post subject: | 3D Pantograph |
Some time ago, there were discussions about pantographs (2D and 3D). Just came across this and will probably go ahead and build it. Especially since I see it using the Bosch Colt!! Anybody built this one? http://woodgears.ca/pantograph/index.html Mike |
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| Author: | Fred Tellier [ Wed Apr 13, 2011 8:34 am ] |
| Post subject: | Re: 3D Pantograph |
It looks like a good build but might be a little big for what I am interested in doing. I am thinking of doing the one that was discussed on the forum a while back. I have a pdf of the plan and will probably use a high speed pencil air grinder as a spindle, if I ever get to it. Fred |
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| Author: | bill stewart [ Thu Apr 14, 2011 5:00 am ] |
| Post subject: | Re: 3D Pantograph |
I built the one that you mention Fred with some mahogany left-overs. When a friend of mine saw it he tried to figure out what it was and then guessed it was a modern piece of sculpture. Bill S. |
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| Author: | Mike OMelia [ Thu Apr 14, 2011 10:14 am ] |
| Post subject: | Re: 3D Pantograph |
If you study the videos of this device, it's clear that it is a pseudo 3D machine since the z axis is aproxmated by angular motion. It's probaly good for an inch or two. But, a mod to the z axis part would solve that. Also, modifying the clamp to hold a pencil grinder would make it more applicable to guitar work. So, I intend to construct it with it's current capabilities as well as to add the z axis mod and pencil grinder clamp. Mike |
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| Author: | gozierdt [ Thu Apr 14, 2011 2:13 pm ] |
| Post subject: | Re: 3D Pantograph |
I built the one Fred mentioned, that was in a thread a couple of months ago. It works really well for small inlays. I use a Foredom handpiece for the cutting. Biggest problem I've had is learning to not move the handpiece or tracing point horizontally except while cutting. I broke my 1/32" cutter doing that accidentally. I'm adding a "parking stand" along the back part of the base to park the tracing point while holding the cutter off any surface. |
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| Author: | Chris Paulick [ Fri Apr 15, 2011 4:34 pm ] |
| Post subject: | Re: 3D Pantograph |
Do you want the pantograph ability or the duplicator ability? |
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| Author: | James W B [ Sat Apr 16, 2011 10:11 am ] |
| Post subject: | Re: 3D Pantograph |
Fred where do you get a pdf of the plan? James |
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| Author: | Fred Tellier [ Sat Apr 16, 2011 10:28 am ] |
| Post subject: | Re: 3D Pantograph |
There was a link on the original thread for the pantograph, if you can't find it let me know and I will email you the file. Fred |
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| Author: | Chris Paulick [ Sat Apr 16, 2011 1:10 pm ] |
| Post subject: | Re: 3D Pantograph |
That pantograph is very cool and reminds me of the one Rio Grande has that I've been looking at for awhile. Nice to have a set of plans. |
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| Author: | Mike OMelia [ Mon Apr 18, 2011 12:10 am ] |
| Post subject: | Re: 3D Pantograph |
Chris, glad you chimed in! Thought you might. First thing, I want a 1:1 scale. Second, I think it would be a simple design mod to retain the pivot capability for sign making, and then introduce a spring loaded z axis for true 3D. What do you think? Mike |
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| Author: | Chris Paulick [ Tue Apr 19, 2011 7:30 pm ] |
| Post subject: | Re: 3D Pantograph |
From what I've read the pantograph isn't used for 1:1 scale . I think it is because of the one fixed point which acts like a radius center point and the closer or farther from the fixed/center point the cutter or stylus is determines the ratio . The same for the pivot point making it 3D. If you put a spring in it to raise the pivot point up and down(which I think your mod might be) then it wouldn't be accurate at changing the scale. I don't know if that makes any sense or not but the bottom line is you probably want a duplicator for your needs. Plenty of them out there to copy or buy or build. You might think about building a CNC router or a dupicator built around a CNC's gantry design minus the screws and motors. Just a thought. Heck it could be used as a binding machine too.  It all pretty much depends on what you want to use it for to determine the size you need of either the pantograph or dupicator. Sort of a form follows function thing. This one is a pretty nice mid size one and would be a fun weekend project. |
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| Author: | Mike OMelia [ Tue Apr 19, 2011 10:30 pm ] |
| Post subject: | Re: 3D Pantograph |
I am building a CNC router. Thus pantograph will fill the need I cuurrently have, and it's cheap Mike |
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| Author: | Chris Paulick [ Wed Apr 20, 2011 4:31 am ] |
| Post subject: | Re: 3D Pantograph |
Cool, have fun with the pantograph build. |
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