1971 HLS30-14938 "Lily" build

[CanTechZ]

2 hours ago, Patcon said:

So I worked on tar mat some. I used the Wurth tar mat @Zup recommended in another thread. One box is just enough to do the tunnel. I will have to get some more later for the floor boards and hatch floor.

The patterns I used are in the resource area

Here is  the rear pattern over the mat. I layed the mat out and used some clear tape to seam them together. Then I used a few pieces to tack the pattern down.

I used this ruler that has a brass edge to help on the long straight cuts. Everything else was freehanded

All cut out

This is installed. I have that roller tool to get it stuck down properly. The film on top has been peeled since then. I didn't take any pictures of that

This is the larger front piece

I had to scrap out some areas on this. If I were going to do this again, I would be more selective on where I used the scrap. My scrapped out section was near the top edge of the tunnel and that made it difficult to hold together on install.

I used a blue tape line to mark the overlap point

Excellent work, and hey those templates look very familiar.   Of the full set of tar mat templates I created, those two were the most time consuming. Nice to see they worked out.

[Patcon]

Thanks for making those available!!

[Patcon]

I made a little progress today

Here is what the tar mat looks like all peeled

Here are my templates for the tunnel jute

I also did a little plating on some wiper parts

Not as much progress as I'd like but something...

[Patcon]

Here is the plating from yesterday

Wiper arms. I plated these myself because I had to wrap the chromed sections and I figure that was easier for me to do in house. It's always a challenge to get the tanks up and running when they've been sitting for a while

These first few items blistered really badly. They didn't look this way until after 24 hours.

I will blast them and replate later

The later items seemed to have worked ok

[grannyknot]

What do you think that blistering was caused by? Some left over grease?

[Patcon]

7 hours ago, grannyknot said:

What do you think that blistering was caused by? Some left over grease?

I have several suspects:

Tank heater wasn't on but several other items seemed to do ok

I added brightener and if you over do it, it can cause blistering

My current was pretty high on the first few pieces.

I suspect it might be a combination of things.

On an interesting note, I had some of the bigger pieces that didn't want to plate evenly. The edges looked good but the center area was still dull. So I stood there for a little while and just cycled the current really high then low. Up and down over and over. It worked really well! I believe commercial power supplies do this automatically. Anyone have an idea on how to do this at home DIY?

[dutchzcarguy]

2 hours ago, Patcon said:

Anyone have an idea on how to do this at home DIY?

With a "flip-flop" circuit you can find on the internet you can make a 1-100 sec flipflop (Pot-meter on it) and a relais that switches on command of the flipflop circuit and the relais switsches a resistor into your passifying circuit on and off..

Now you have 2 diff. currents going to your parts..  The resistor inline with your parts need to be a power potentiometer that can handle the currents.

[Patcon]

Can someone clarify that? Maybe a sketch?

[SteveJ]

I believe this is what @dutchzcarguy is talking about: https://history-computer.com/what-is-a-flip-flop-in-electronics/

You have the output of the circuit going to a relay (coil). The contacts of the coil are in the circuit that go to the circuit you want to pulse. Just make sure the relay is rated for well above the max power of the circuit. You don't want to weld the contacts.

[dutchzcarguy]

YES!

That circuitry is what we electronic guys call the famous flipflop..   You have to experiment with resistors and capacitors and make one resistor a potentiometer (and a small resistor in series) to make a variable timer..  I believe you guys call it a bread to test on? You can make all kinds of electronic circuits on a testbread.  I took a short look at the circuit and in that one you can change one of the LED's for a relay of 6 or 12 V that switches between 2 contacts (My translator says change over contact but that's not a very good translation..) 

Tutorial 1: Building a Circuit on Breadboard for Beginners in Electronics (startingelectronics.org)

In the 2 contact outputs of the relais you put on one of them a high power variable resistor ( as a potmeter but high power=expensive..) for the lower amp's

Hope you get it hihi..  It's a nice way to study a bit of electronics making your own circuitry, if your not really interested, i think it's to difficult for someone that never worked with small electronic stuff..

[SteveJ]

2 hours ago, dutchzcarguy said:

I believe you guys call it a bread to test on?

It's a breadboard, but you were close.

2 hours ago, dutchzcarguy said:

YES!

That circuitry is what we electronic guys call the famous flipflop..   You have to experiment with resistors and capacitors and make one resistor a potentiometer (and a small resistor in series) to make a variable timer..  I believe you guys call it a bread to test on? You can make all kinds of electronic circuits on a testbread.  I took a short look at the circuit and in that one you can change one of the LED's for a relay of 6 or 12 V that switches between 2 contacts (My translator says change over contact but that's not a very good translation..) 

The technical terms in America for that kind of relay are form C contacts and SPDT (single pole, double throw). The Bosch terminal numbers for a relay like that are 30, 87 (normally open), and 87a (normally closed).

[dutchzcarguy]

Ah, Thanks!  We call the number 30 contact (were the signal go's in the switch the P-contact.)  Also the common. 

 30