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Re: My 3π adventure [message #95424 is a reply to message #95260]

Wed, 23 March 2022 11:21

ppkstat
Messages: 38
Registered: February 2022

Baron

Having received the two waveguides yesterday I soon realized that these have to be sanded and painted. They're completely fine as they are but if you're going for the max aesthetic result its something that has to be done.

The instruction of Wayne was to sand just the face of these in order to remove the parting lines without touching anything related to the flare and throat. With this in mind I decided to make the following setup: wet sanding with wet/dry sandpaper on a marble block:

/forum/index.php?t=getfile&id=3024&private=0

This produced excellent results! I did the bulk of the sanding at 400 grit. The parting lines were gone and then I did some more sanding to make it completely flat (not necessary at all but my OCD was killing me). I then smoothed it out by sanding at 600, 800 and 1000 grit. I could go much higher than that, essentially polishing it but there is no way paint is not going to cover the scratches made at 1000 grit. Below is an image of the treated vs the untreated waveguide.

/forum/index.php?t=getfile&id=3023&private=0

I even measured the thickness of the face before and after sanding. Turns out I removed around 0.2mm of material. Not bad!

Attachment: 1648051763100.jpg
(Size: 701.69KB, Downloaded 684 times)
Attachment: 1648051745251.jpg
(Size: 901.50KB, Downloaded 602 times)

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[Message index]

		My 3π adventure By: ppkstat on Fri, 18 February 2022 19:13
		Re: My 3π adventure By: Wayne Parham on Sat, 19 February 2022 10:45
		Re: My 3π adventure By: ppkstat on Fri, 25 February 2022 18:27
		Re: My 3π adventure By: Wayne Parham on Fri, 25 February 2022 18:52
		Re: My 3π adventure By: ppkstat on Thu, 10 March 2022 17:47
		Re: My 3π adventure By: Wayne Parham on Thu, 10 March 2022 18:52
		Re: My 3π adventure By: ppkstat on Tue, 15 March 2022 12:39
		Re: My 3π adventure By: Rusty on Tue, 15 March 2022 13:42
		Re: My 3π adventure By: ppkstat on Tue, 15 March 2022 14:16
		Re: My 3π adventure By: Rusty on Tue, 15 March 2022 14:38
		Re: My 3π adventure By: Wayne Parham on Tue, 15 March 2022 14:40
		Re: My 3π adventure By: ppkstat on Wed, 23 March 2022 11:21
		Re: My 3π adventure By: ppkstat on Thu, 24 March 2022 08:53
		Re: My 3π adventure By: Wayne Parham on Thu, 24 March 2022 09:49
		Re: My 3π adventure By: hudelson2 on Sat, 30 April 2022 13:30
		Re: My 3π adventure By: ppkstat on Sat, 30 April 2022 14:03
		Re: My 3π adventure By: Wayne Parham on Sat, 30 April 2022 16:31
		Re: My 3π adventure By: ppkstat on Sat, 30 April 2022 17:00
		Re: My 3π adventure By: ppkstat on Tue, 19 April 2022 09:16
		Re: My 3π adventure By: Wayne Parham on Tue, 19 April 2022 09:49
		Re: My 3π adventure By: ppkstat on Tue, 19 April 2022 10:06
		Re: My 3π adventure By: Wayne Parham on Wed, 20 April 2022 08:05
		Re: My 3π adventure By: ppkstat on Wed, 20 April 2022 15:47
		Re: My 3π adventure By: Wayne Parham on Wed, 20 April 2022 16:15
		Re: My 3π adventure By: ppkstat on Sat, 07 May 2022 21:02
		Re: My 3π adventure By: ppkstat on Mon, 09 May 2022 19:30
		Re: My 3π adventure By: ppkstat on Tue, 10 May 2022 14:36
		Re: My 3π adventure By: Wayne Parham on Tue, 10 May 2022 15:58
		Re: My 3π adventure By: ppkstat on Tue, 10 May 2022 16:04
		Re: My 3π adventure By: Wayne Parham on Tue, 10 May 2022 16:34
		Re: My 3π adventure By: ppkstat on Sun, 05 June 2022 06:57
		Re: My 3π adventure By: ppkstat on Wed, 22 June 2022 07:52
		Re: My 3π adventure By: Wayne Parham on Wed, 22 June 2022 11:18
		Re: My 3π adventure By: ppkstat on Thu, 23 June 2022 09:46
		Re: My 3π adventure By: Wayne Parham on Thu, 23 June 2022 10:54
		Re: My 3π adventure By: ppkstat on Fri, 24 June 2022 12:05
		Re: My 3π adventure By: Wayne Parham on Fri, 24 June 2022 12:43
		Re: My 3π adventure By: ppkstat on Fri, 24 June 2022 13:43
		Re: My 3π adventure By: Wayne Parham on Fri, 24 June 2022 14:57
		Re: My 3π adventure By: ppkstat on Fri, 24 June 2022 19:18
		Re: My 3π adventure By: Wayne Parham on Fri, 24 June 2022 20:25
		Re: My 3π adventure By: ppkstat on Sat, 25 June 2022 17:57
		Re: My 3π adventure By: Wayne Parham on Sat, 25 June 2022 18:38
		Re: My 3π adventure By: ppkstat on Sat, 25 June 2022 18:53
		Re: My 3π adventure By: ppkstat on Sat, 25 June 2022 19:33
		Re: My 3π adventure By: Wayne Parham on Sat, 25 June 2022 20:03
		Re: My 3π adventure By: ppkstat on Sat, 25 June 2022 20:26
		Re: My 3π adventure By: ppkstat on Sun, 26 June 2022 18:35
		Re: My 3π adventure By: Wayne Parham on Mon, 27 June 2022 08:49
		Re: My 3π adventure By: ppkstat on Mon, 27 June 2022 08:56
		Re: My 3π adventure By: ppkstat on Tue, 28 June 2022 14:33
		Re: My 3π adventure By: Wayne Parham on Tue, 28 June 2022 14:50
		Re: My 3π adventure By: ppkstat on Thu, 30 June 2022 13:27
		Re: My 3π adventure By: Wayne Parham on Fri, 01 July 2022 07:52
		Re: My 3π adventure By: ppkstat on Mon, 11 July 2022 08:50
		Re: My 3π adventure By: Wayne Parham on Mon, 11 July 2022 11:03
		Re: My 3π adventure By: ppkstat on Thu, 28 July 2022 08:29
		Re: My 3π adventure By: Wayne Parham on Thu, 28 July 2022 08:40
		Re: My 3π adventure By: Rusty on Thu, 28 July 2022 09:16
		Re: My 3π adventure By: Barryso on Thu, 28 July 2022 12:32
		Re: My 3π adventure By: ppkstat on Mon, 22 August 2022 16:02
		Re: My 3π adventure By: Wayne Parham on Mon, 22 August 2022 17:01
		Re: My 3π adventure By: ppkstat on Mon, 22 August 2022 17:33
		Re: My 3π adventure By: Wayne Parham on Mon, 22 August 2022 18:33
		Re: My 3π adventure By: Wayne Parham on Tue, 23 August 2022 09:09
		Re: My 3π adventure By: ppkstat on Tue, 23 August 2022 13:43
		Re: My 3π adventure By: Wayne Parham on Tue, 23 August 2022 14:29

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