reciprocating mechanisms

[rslaback]

I'm way too cheap to throw out all the old spray paint that I have that has separated. I've been looking at spray can shakers and while they get the job done I kind of want a solution that I can turn on and walk away for 20 minutes or so. The reciprocating saw attachments don't do that and the drill kind of could be rigged to but I am more thinking I might build my own.

I have some ideas on where to scavenge a root reciprocating mechanism but wanted to get the thoughts of the hive mind before I pull the trigger on anything.

 

[PCustoms]

HF recip saw

Eccentric can mechanism and an old motor

@PelicanPines may have a few ideas

 

[PelicanPines]

HF recip saw

Eccentric can mechanism and an old motor

@PelicanPines may have a few ideas

Yes... You can get the attachment for any recipe saw.... Set the trigger on medium... Walk away.

Soak the cans in a bucket of hot water before you use them. Warm paint sticks better.

 

[mike93lx]

Soak the cans in a bucket of hot water before you use them. Warm paint sticks better.

Microwave is faster









Don't do this

 

[jack stand]

I think I've seen an attachment for a sawzall. Might have been a DIY thing.
My experience is it's a a waste of time with 90% of old paint.

 

[four.cycle]

^ we always told customers who were buying spray paint to either put the can in a sink of hot water first, or set it out in the sun to warm up. works way mo' betta.

 

[danielbuck]

I leave them out in the sun to warm up, then shake them with a sawzall. works really well! Just make sure the strap is tight on the can...

 

[larry4406]

@zmotorsports built a nice spray can shaker.

 

[zmotorsports]

@zmotorsports built a nice spray can shaker.

Thanks @larry4406


Works like a charm. Turn it on and walk away while it shakes.

 

[rslaback]

Got a build thread for that?

 

[four.cycle]

just find yourself a mower with a bent crank - instant paint shaker!

 

[PCustoms]

Go throw it in the dryer for 5 minutes.

Heat and plenty of shaking

 

[signcrafter]

It's in his shop thread in this metal fab & techniques section. I'm not sure what page but he has posts of the builds. I think Mike or someone else in there posted links to the parts.

 

[larry4406]

Thanks @larry4406


Works like a charm. Turn it on and walk away while it shakes.

Got a build thread for that?

It's in his shop thread in this metal fab & techniques section. I'm not sure what page but he has posts of the builds. I think Mike or someone else in there posted links to the parts.

Here is an index I put together of Mikes awesome paint shaker build.

ZMotorsports Shop Projects 2.0

Cody, I am positive I don't shake the can 2-3 minutes like recommended. I may start out with the intention of doing so, but for me what seems like 2-3 minutes of hearing that ball bearing rattle around is probably closer to 30-45 seconds if I'm being honest. :unsure: I have the timer on...

www.garagejournal.com

 

[OccupantRJ]

Here’s the thread on a rotary agitator I built from a 60 rpm gearmotor. It quietly clicky-clacks along at 120 times a minute and is controlled by a spring wound 15 minute countdown timer. I often wonder why it took me so long in life to build something for this purpose.

Rotary spray paint agitator

Since I use a bit of spray can paint on smaller objects I got tired of jerking cans for no personal satisfaction so I came up with something I have been thinking about making for years. I did some rpm testing on my metal lathe to determine a good speed. I went on to marketplace and purchased a...

www.garagejournal.com

 

[whateg01]

I can put a can in the lathe and walk away.

 

[mike93lx]

I can put a can in the lathe and walk away.

Does that mix it? Feels like it would do the opposite.

 

[PCustoms]

I can put a can in the lathe and walk away.

Sideways in a 4-jaw?

 

[whateg01]

Nope. Long ways. Slow enough spindle rpm that I can hear the ball rolling around. Started doing that after watching Adam Savage use a drill in a similar fashion. Didn't think it would work but it seems to work fine so far. I typically let it run for a couple minutes.

 

[mike93lx]

Nope. Long ways. Slow enough spindle rpm that I can hear the ball rolling around. Started doing that after watching Adam Savage use a drill in a similar fashion. Didn't think it would work but it seems to work fine so far. I typically let it run for a couple minutes.

Ah, I was thinking 3k rpm, not 3

 

[whateg01]

Ah, I was thinking 3k rpm, not 3

I think I end up somewhere between 150 and 200.

 

[joe_padavano]

 

[OccupantRJ]

I started out rolling my spray paint in the metal lathe, but built my rotary unit to save the lathe wear for more important things.

 

[rslaback]

I started out rolling my spray paint in the metal lathe, but built my rotary unit to save the lathe wear for more important things.

Someone back in the day taught me to set it in a 3 jaw but not square and turn it at low RPM. That doesn't seem to do much for me. I want the up and down

 

[yhprum]

I’ve had an idea for awhile that no doubt already exists.
Ball bearing drawer sliders for the can holdingbpart part.
Windshield wiper motor for the recip part.
Toaster oven timer.
Set it and forget it until you’re ready.

 

[whateg01]

I’ve had an idea for awhile that no doubt already exists.
Ball bearing drawer sliders for the can holdingbpart part.
Windshield wiper motor for the recip part.
Toaster oven timer.
Set it and forget it until you’re ready.

I have trouble believing drawer slides would hold up to that

 

[OccupantRJ]

Someone back in the day taught me to set it in a 3 jaw but not square and turn it at low RPM. That doesn't seem to do much for me. I want the up and down

The ball falls the length of the can in the one I built twice per second and I feel it does a better job of mixing than when I was letting it roll in the lathe. A can gets latched into it when a project like blasting something to paint is started and it mixes while I do other things. The 15 minute timer is nice to be able to set it and forget it as many times as you want and it is also quiet in operation.

 

[micromind]

While I agree that warm paint adheres better than cold, if you set a spray can out in the sun on a hot summer day around here, it'll explode.

I guess this would solve the problem of shaking it up......lol

 

[Gutman]

if you set a spray can out in the sun on a hot summer day around here, it'll explode.

That would make for a sucky day. I usually set them on the tailgate of my truck to take advantage of the bedliner's 'warmth.'

 

[Beerhippie]

I thought I was reading a thread at GJ, but as no one has mentioned building one using an ultrasonic transducer and induction heating, I guess I accidentally wandered off somewhere rational....

 

[Dagny]

I haven't had a spray paint can that works in 30 years. I just quit buying it.

 

[kerrynzl]

I'm way too cheap to throw out all the old spray paint that I have that has separated. I've been looking at spray can shakers and while they get the job done I kind of want a solution that I can turn on and walk away for 20 minutes or so. The reciprocating saw attachments don't do that and the drill kind of could be rigged to but I am more thinking I might build my own.

I have some ideas on where to scavenge a root reciprocating mechanism but wanted to get the thoughts of the hive mind before I pull the trigger on anything.

This is GJ
Get an old corded hedge trimmer and chop /modify / weld away
I've picked up good corded models at garage sales for $5 [nobody wants them]

 

[PCustoms]

While I agree that warm paint adheres better than cold, if you set a spray can out in the sun on a hot summer day around here, it'll explode.

Anyone else kind of want to see this?

 

[OccupantRJ]

I haven't had a spray paint can that works in 30 years. I just quit buying it.

I have a few cans of 99 cent spray paint that were sold at Roses department store 35 years ago that have been flooded for days 25 years ago and still work. I just used some of it last week to touch up a hand cart.

 

[cannuck]

I have a 14YO shop helper with an 8YO wanting to join in. I have no trouble and zero electrical costs getting rattle cans fully mixed.

 

[rslaback]

I have a 14YO shop helper with an 8YO wanting to join in. I have no trouble and zero electrical costs getting rattle cans fully mixed.

I mean what else is there to do in Canada other than shake spray cans?

 

[whateg01]

I mean what else is there to do in Canada other than shake spray cans?

Ride around without air conditioning

 

[Dagny]

I have two buddies at the local watering hole that have a hard time getting a beer up to there mouth one day sitting between them I said if I ever need to paint something i'm inviting them over to hold the cans. They laughed.

 

[cannuck]

I mean what else is there to do in Canada other than shake spray cans?

Depends on the season and latitude. Any more detail is beyond the realm of good taste on a family website.

 

[Beerhippie]

Depends on the season and latitude. Any more detail is beyond the realm of good taste on a family website.

If it involves reciprocating motion, it's on-topic!