Messages

Ok, I've done the envirotex thing with mixed results.

The top is not too bad, a few bubbles which, had I taken more time, I could have prevented. I had already drilled the holes in the box and redrilling them through the ET was easy peasy with a sharp, stepped drill bit.

The sides are not so great. They are very rough and lumpy where the ET seems to have seeped out of the fabric, it's not bubbles, but tiny, solid lumps of ET. There's also a few drips.

I firstly applied the ET with a brush and then poured the rest on, allowing it to settle on the top and run down the sides. The idea with the brush was to push the ET into the fabric removing the air. I'm not sure it worked.

Another thing to note is that I used this stuff, https://www.elichem.co.uk/p-21-mastercast-1-2-1.aspx, which as far as I can tell is the same as ET. It's much easier to get this stuff in the UK. It has made the fabric significantly darker.

I think I am going to see if I can recoat the sides, one at a time as suggested by ggarms. It will take a while, but might be worth it.

I have one other problem, an electronic one. I am using the stripboard layout attached to this post. I have it hooked up to test, but there is not a peep from it, nothing at all.

When I check the datasheets for Q1 and Q2 I see that they have different pinouts, but this doesn't seem to be specified in the layout. Have the differing pinouts been accounted for in the layout? Is there a CBE convention in stripboard layouts?

At the moment I have the circuit looking exactly as the layout, with the flat faces of Q1 and Q2 facing to the right and the legs connected to the track directly below. Do I actually need to twist the legs on Q2?

Does that make sense?

Like I said, this is my first pedal build and my first use of transistors - all my previous experience is modding valve amps.

Any help would be really good, thanks.

Thanks for the replies.

I'm going to use Soup's idea and put pins in the screw holes to support the enclosure - I like that.

I have glued the fabric to the box with Elmer's PVA glue and, taking into account what ggarms said, I will seal it with a diluted mix of the same glue. I've tested it and seems to work fine.

I will, of course, post piccies and my method when I'm finished. 

Hi,

My first post and my first pedal project.

I've attached a pic of my build. As you can see I have covered it in a sixties fabric and my intention now is to encase it in envirotex, including the sides.

I know people have struggled with coating the sides of the pedals, but I am hoping that the fabric will give the epoxy something to cling to, making it easier.

Can anyone give any advice on doing this?

My particular concerns are the sides, the holes and the bottom edge.

Would giving the pedal a thin coat of ET before putting on a main coat be a way forward? I thought that might let me push the ET into the fabric.

I was going to block the holes with wax, then there is no need to drill out the ET.

Finally, I was going to make a small stand for the pedal using razor thin strips of metal on end to support the pedal, minimising the contact between stand and enclosure - is there a better way?


Thanks for any advice.