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05-30-2014, 03:13 AM | #21 (permalink) |
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Join Date: Apr 2004
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What do your cutting bits look like? And what's the PCD coating? Is it a diamond type finish?
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05-30-2014, 03:25 AM | #22 (permalink) | |
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Join Date: Mar 2007
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Re: CNC Cutting Service...
Quote:
http://pages.ebay.com/link/?nav=item...101861&alt=web Polycrystalline diamond http://www.hamprecision.com/HAM_Milling_Diamond.asp
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Dylan ~ www.AstroidDesigns.com |
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05-30-2014, 04:17 AM | #23 (permalink) |
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Join Date: Jan 2009
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Hi.
You are doing something wrong that carbide tools don`t last longer. I use 0.8 and 1.5mm carbide cutters with diamond and coating and last for 12-20 hours for 0.8mm and 18-24hours for 1.5mm no problem, with perfect results. I cut mostly CF and GF, and little of plywood and balsa with those cutters. I had carbide cutters with no coating but it looses sharpness after 2-3 hours. If edges are not that important it last at least 8 hours if you are adapting feed rate even more. I use double site tape as well but I never cut through tape because tape close cutting edge of the tool, there come to much resistance on the tool and brake. Other possible reasons for braking are: -not enough rpm -too much feed -you take to much material at once -machine is not rigid enough -accelerations are to big (if machine is not rigid enough is this a big problem) -hard lead in on toolpath, (use lead ins or ramping to cut in the material) -If tool don`t spin centered that reduces tool life. Here I buy my tools: http://www.sorotec.de/shop/index.php...-Fraeser.html/ Hope that helps. Best regards. |
05-30-2014, 04:18 AM | #24 (permalink) |
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Thread Starter
Join Date: Dec 2013
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Ok... Here are some pictures...
these are frames for Jr Vibe 90SG and Jr Vibe 50 NEX |
05-30-2014, 04:38 AM | #25 (permalink) | |
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Join Date: Mar 2007
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Re: CNC Cutting Service...
Quote:
What feeds and speeds do you use on CF with uncoated carbide?
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Dylan ~ www.AstroidDesigns.com |
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05-30-2014, 04:53 AM | #26 (permalink) | |
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Join Date: Mar 2007
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Quote:
6K twill weave? Where do you get the carbon sheet? is one side textured?
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Dylan ~ www.AstroidDesigns.com |
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05-30-2014, 05:22 AM | #27 (permalink) |
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Join Date: Jan 2009
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CF:
Diamond coated: 0.8mm 24000rpm, feed 1000mm/min, Depth of cut/pass: 1/2 D (0.4mm) strategy: constant z machining >spiral 1.5mm 18500rpm, feed 3500mm/min, Depth of cut/pass: ~1/2 D (0.8mm) strategy: constant z machining >spiral CF: Carbide not coated: 1.5mm 18000rpm, feed 2500, Depth of cut/pass: ~1/3 D (0.55mm) strategy: constant z machining >spiral (I don`t use them any more for CF) As I wrote your problem is probably cutting double site tape! That data I wrote is for perfect finish |
05-30-2014, 05:42 AM | #28 (permalink) | |
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Join Date: Mar 2007
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Quote:
I am running very close to the same chip load, much slower speeds and feeds, similar strategy. The tape I use is .09mm thick, and I get the same results cutting through it or just up to it, actually get the best results when the final pass is .2mm deep into the sacrificial board.
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Dylan ~ www.AstroidDesigns.com |
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05-30-2014, 05:48 AM | #29 (permalink) |
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Join Date: Jan 2009
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Here is one of my projects:
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06-23-2014, 05:33 AM | #32 (permalink) |
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Join Date: Jan 2009
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Hi petertha.
Aluminum parts are made at work on HS milling machine, all CFK parts are made on my CNC router at home. This is (almost all part) conversion from nitro robbe millennium 90 helicopter to electric. I have no build treed about it but i can give you some info. Basic for build was main drive train. I add trust bearings on main shaft and make it rigid as much as possible with no play in links and adjustable tracking on the tail to eliminate all possible vibrations. Every thing else was build around that to fit. It was my first FBL heli and still my favorite one. Setup at the moment: -Radix 710 V2 -Edge 105 -Scorpion HK-4035 560KV -PowerJive 120-HV -AC-3X FBL -BLS 251 1x -DS 8717 3x -JLog 2 -Jeti DS-16 radio with RSat2 -With Turngy Nanotech 4000 12S (2x6s) it weights 4.7kg At the moment I`m designing stronger main gear (I have striped 2 gears this year) |
07-07-2014, 05:29 PM | #33 (permalink) | |
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Join Date: May 2007
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Quote:
I used 2 bits 1) 1/32" 1) 1/16" to cut everything in these pic. I also used the same bits to cut rev one of my vibe but that doesn't count since it was G10. https://www.helifreak.com/album.php?...ictureid=87123
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Wooohoo.... Last edited by corona007; 07-07-2014 at 05:36 PM.. Reason: add |
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08-01-2014, 10:23 PM | #34 (permalink) |
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Thread Starter
Join Date: Dec 2013
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My Cnc Service is still available
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08-03-2014, 11:21 PM | #35 (permalink) |
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Join Date: Sep 2010
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i need a motor mount with a heat sink , only problem is heat sink will be 35mm deep.
it can be cut from the side which is 9.5mm deep the space between the fins can be increased or decreased for easier cutting. any of you guys have experience with that? |
08-08-2014, 03:51 PM | #36 (permalink) |
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Do you have a render of the part?
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Jeti DS14us -- TT e700 -- 6s Logo600se UL -- Logo600-3d -- Logo500 UL -- Charge Case |
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