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Author Topic: MIP Dimmer Panels  (Read 1450 times)

Offline Coco737

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MIP Dimmer Panels
« on: December 06, 2017, 11:29:59 AM »
Couldn't see these files anywhere (never looked too hard)  ;) So made them myself. Hope it saves someone a bit of time.

The Aspect file is the rar file.   
cutting panel size 150mm by 100   5mm acyrlic.

10 degree envgrave bit with a .3mm depth
2.9mm end mill for pockets and profile
3.5mm pockets for the switch covers and the potentiometer nut
5.5mm cut profile.

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #1 on: December 06, 2017, 12:31:49 PM »
Cool. Can you show a closeup pic of the engraving? I've not been successful at engraving with a CNC yet.

Offline Coco737

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Re: MIP Dimmer Panels
« Reply #2 on: December 07, 2017, 02:23:59 AM »
What is it about the engraving that you are having a problem with?

Offline Coco737

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Re: MIP Dimmer Panels
« Reply #3 on: December 07, 2017, 06:43:24 AM »
First I record my machine Zero in case I have a problem then I cut the panels out. Then I make a pocket for them to fit tight into. Then I engrave. As you can see from the pictures they are not perfect but I feel they are good enough for me. I just have a chinese 6040 and I like it a lot but if I have a better cnc I would only go down 0.2mm but hey ho you can only work with what you have

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #4 on: December 07, 2017, 04:41:47 PM »
What is it about the engraving that you are having a problem with?

MY feed and speeds are probably the main issue. I'm running low speeds 8k RPM 762mm/min with .15 DOC with a 30° v-bit .15mm tip.
Also I dont have a good single line font that is close to MS33558 or Futura. 8000rpm is the lowest my spindle will go.
« Last Edit: December 07, 2017, 04:43:49 PM by ifeliciano »

Offline Coco737

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Re: MIP Dimmer Panels
« Reply #5 on: December 08, 2017, 09:13:11 AM »
MS33558 is freely available in the net. I run at 20k for engraving with a 20mm/s feed and 17k for profile with a 50mm/s feed. But you can play about with them in my opinion getting the bed level is key.I don't v carve single line fonts I just use true type and the software does the work
« Last Edit: December 08, 2017, 09:16:49 AM by Coco737 »

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #6 on: December 08, 2017, 11:41:23 AM »
MS33558 is freely available in the net. I run at 20k for engraving with a 20mm/s feed and 17k for profile with a 50mm/s feed. But you can play about with them in my opinion getting the bed level is key.I don't v carve single line fonts I just use true type and the software does the work


Right, i do have the fonts, but they are TTF instead of Single line. What CAM program do you use to create the engraving toolpaths? 

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #7 on: December 08, 2017, 04:04:53 PM »
Never mind. My old brain has blocked out the other thread where we chatted about this stuff already..DUH!

http://www.cockpitbuilders.com/community/index.php?topic=6734.0

Offline Fcoq

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Re: MIP Dimmer Panels
« Reply #8 on: December 10, 2017, 07:21:37 AM »
I think the problem was the acrylic .......
we would say seeing the photos that the plastic melts around the mill.......i'm right?

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #9 on: December 10, 2017, 11:59:21 AM »
I think the problem was the acrylic .......
we would say seeing the photos that the plastic melts around the mill.......i'm right?


Franck, I use cast acrylic. No, its not melted on the bit, but there is chip re-adhesion or re-welding in the engraving itself, because the v-bit is not ejecting the chips properly. Usually I need to run the program twice to clean out the engraving.

I just need to play with the depth of cut, feed rate. and spindle RPM. Also need to understand the V-Carve tool path better.
The attached image is an exaggeration of what im usually getting. I usually only go max depth of .2mm in this one, I went .5mm deep with a 30° engraving v-bit




« Last Edit: December 10, 2017, 12:05:38 PM by ifeliciano »

Offline Coco737

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Re: MIP Dimmer Panels
« Reply #10 on: December 11, 2017, 10:36:16 AM »
I use aspire 4.0 for the design and toolpaths
« Last Edit: December 11, 2017, 10:59:41 AM by Coco737 »

Offline ifeliciano

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Re: MIP Dimmer Panels
« Reply #11 on: December 11, 2017, 01:51:13 PM »
I use aspire 4.0 for the design and toolpaths

Thanks Colin. I have V-Carve Pro 9 and Fusion360. Slowly learning along those CAM packages.

 

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