RAWshop - Ross’ Alliteration Workshop

rosco · April 20, 2022, 2:55am

#sciencebegins
starting fabric layup today/tonight
Maybe infusion tomorrow!!!

Gonna try double bag this time for weight savings and better fabric/resin ratio.

rosco · April 20, 2022, 9:50am

Fabric down, vacuum bags and resin supply/ vacuum tubing to go then drop test and its ready

glyphiks · April 20, 2022, 11:27am

Hoooly shit its happening! Looks great!

rosco · April 20, 2022, 11:03pm

Taps in place, bag on the part and second vac bag over it. Not sure if that’ll help but will see.

rosco · April 20, 2022, 11:41pm

Fuck.
Opened resin tin and has all solidified a bit. Unusable
Call to supplier and the waiting game for new supplies.

Edit- upside is the double bag setup seems well sealed

glyphiks · April 21, 2022, 11:02am

Use it or lose it! Stoked that the bag is holding up! That’s a very good omen!

glyphiks · April 24, 2022, 6:57am

I need updates Ross. What the fuck is happening over there?

rosco · April 24, 2022, 7:21am

I’m waiting.

My resin is getting made this week, Anzac Day tomorrow so probably gets made Tuesday or Wednesday and shipped end of the week. It’s made to order.

Made in Auckland and it’s dangerous goods (ground) shipping so takes 5-8 days. Realistically I’m ten days away or two weeks cos I probably have to do it on a weekend. It was a fuck up.

rosco · April 24, 2022, 7:29am

But I’m gonna try and do some other shit.

Mucking round with idea for top mount enclosure and working on other small boring bits and bobs.

Epoxied some sensor plugs into an enclosure today. Did the hot glue temporary weld thing to hold them in place while epoxy set and then ripped that glue off and did the other side.

Pic before epoxying the inside.

glyphiks · April 24, 2022, 8:28am

Brave man epoxying connectors in. I’ve done it a few times and never again

rosco · April 24, 2022, 9:27am

Plugs both sides. Fuck epoxying in anything that is soldered to an esc. Unplugging bits is easy.

glyphiks · April 24, 2022, 5:46pm

That does not look fun to solder

Savage1 · April 25, 2022, 12:29pm

Pic before epoxying the inside.

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NGL, I got excited for a second there!

rosco · May 14, 2022, 1:47am

Infusion time!

Lesson time:
Double bag is hard to see any resin flow so no idea how the infusion front was moving.
Also use clear tubing to catch pot haha.
Curing resin. Hot

glyphiks · May 14, 2022, 5:07am

Holy shit you need a catch cup in your catch pot

Must have been a good amount of resin in there to do that. This is hopeful for the final weight!

rosco · May 14, 2022, 5:45am

I’ll be happy if it’s less than 2.9kg

rosco · May 14, 2022, 7:36pm

Off the mould, looks like the infusion went well

Stripped mesh, peel ply and tubing, blank weighs 3.7kg (at 300mm width, 1200mm long) . Trimmed to shape, if I cut say 20%? area off will be 2.96kg ish. Or cut by say 30% area is 2.59kg ish

glyphiks · May 15, 2022, 12:18am

Cut it! How will you even cut it? Grinder?

rosco · May 15, 2022, 1:33am

Probably hacksaw and then sandpaper.

rosco · May 22, 2022, 4:15am

Rough cut with the hacksaw.

The mega PPE worked this time.
No itchies

Gonna need another session though, got so hot that my goggles fogged up completely and drenched in sweat, I gave up. Shaping and sanding will be another day.