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| Aluminium CNC build (TEP mill converted) by Craynerd |
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| raynerd:
Phil - Metal is next before I stop any more tests and finish the machine properly -stops etc.... I expect this is probably asking too much, but I`m very much learning CAD and I`m getting OK now for more obvious parts. I know this is only a practice, but I`d love to make a part I want. Could any draw this up for me to scale in a dfx file? However, i want it modifying...I want all the little teeth with only a 3/64" instead of a 1/8" line to the centre. In an ideal world, the hypotenus would then come up at a corrected angle to meet the tip of the next toot, but it actually doesn`t have to..there could be little flats between each tooth. The one deep tooth, at the top of the drawing, would than be 1/8". So basically, the wheel exactly how it is in all dimensions but I want smaller teeth and the one deeper tooth can be like the "standard" 1/16 on the original plans. I`m away from my normal computer right now which is why I`ve attached the image rather than posted it. While writing my message I have realised this is likely not a two minute job so I appreciate it if any could even just give me some pointers as to how to get that drawn up, I`d be thankful. I`ve not tried a gear yet although with it being a ratchet wheel (count wheel on the clock), I expect it is easier than a normal tooth profile ! Chris EDIT: Just thinking, I expect i`ll need to use pretty thin bras sheet and a 15deg engraving bit to get a sharpish angle in the corner where the pawl gets hooked. I guess I`m always going to get a round corner due to the radius of the cutter. |
| kwackers:
--- Quote from: John Stevenson on April 08, 2012, 07:25:43 PM --- Now if 4 people conversant with Linux CNC can't sort this out in this time then what change does a complete newbie have ? John S. --- End quote --- If they're talking then things have moved on... Used to be Linux fanboys were like the high priests holding the knowledge and trying to get help with issues usually just met with abuse and unhelpful comments. |
| philf:
Chris, Is this what you wanted? The deep tooth at 1/8" looks deeper than your drawing. I've put the three no. 55 holes in the centre of the hub as there was no pcd for them. DXF attached. Cheers. Phil. |
| John Stevenson:
This is what I got keeping to the 60 degree limitation. John S. |
| mattinker:
--- Quote from: John Stevenson on April 08, 2012, 07:25:43 PM ---There is a very good thread going on at the moment on the Yahoo DIY-CNC group. An American Dan Mauch, very knowledge and much respected is trying to get a Gecko 540 running on EMC but it won't run the charge pump correctly. Three EMC uses, one of them a developer, Kirk Wallace, are trying to sort this out. Dan first posted on March 26th asking for advise as messages to the LinuxCNC forum were going unanswered. Since then there has been approximately 118 posts going backwards and forwards between various parties for 14 days. Now if 4 people conversant with Linux CNC can't sort this out in this time then what change does a complete newbie have ? John S. --- End quote --- First of all, I don't want to pollute this very interesting thread. I'm really glad to see the great results that you are now getting One can always find an example of what doesn't work with something. I use Linux for everything, principally because I don't want to contribute to Microsoft and their practices. The communal spirit of Linux is important to me. I have never had a problem that I couldn't resolve so far. Apart from being free, Linux has the immense advantage having no virus. Problems. There is of course another very important consideration, "the best system is the one you know". Regards, Matthew |
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