Diy shell pasting machines and gummed paper dispensers.

[jl88]

Okay so I'm looking at making my own shell pasting machine. I'm currently tossing up between using lazy Susan bearings and making a pasting machine that spins on a horizontal axis, or the push bike wheel rim style vertical strapper.

 

One of the things I'm not sure of is the best way to wet the tape. I'm looking at the packer 3s tape dispenser http://www.betterpackages.com/details.cfm?modelID=26

 

Any ideas if it is a good unit or if it will work in a vertical orientation as it spins around the shell? If not I'm sure there are several other uses for it?

 

I've seen a few ideas of other shell pasting machines but if any one has links to build info or other models please post them here. The more info the better!

 

Many thanks.

[LambentPyro]

I use the packer 3s sealer for my wasp because it's more durable than the wooden contraption that you receive when you purchase it.

[MrB]

Unless you can figure out a way to always have the tape dispenser down low when you stop the machine, your going to have to figure out something smart to avoid making a wet mess.

B!

[jl88]

So the packer3s in operation works perfectly fine inverted for a short amount of time? So long as it stops in an upright position?

[schroedinger]

Why not just make the aetting station with a big sponge and connect it with a syphon to the water container (could be made out if a simple container and tube).

This way no water would be running out, since water doesn't flows uphill.

 

On right way spinning machine place the tube on the left site of the container and everything shoild be fine (i gues i need to draw a picture of this)

[MrB]

So the packer3s in operation works perfectly fine inverted for a short amount of time? So long as it stops in an upright position?

As long as it's spinning at a reasonable speed, "up" will always be towards the center.

 

(i gues i need to draw a picture of this)

Yes, you need to do that. there isn't anything popping up in my mind that looks like what you describe, and don't leak water everywhere when stopped in the wrong position. There is of course the simple solution. Stick the sponge in to the opening hard enough to keep it from doing more then dripping, and manually turn it to the right direction after stopping the machine. But it will be inconsistent, and i bet, messy.

So, give us a picture. Your solution might work. And be a good way forward.

B!

[schroedinger]

Allready did that, but my pad doesn't allow me to upload it now, i will upload it later

[Bobby]

I am not sure that the Packer 3s would work in your application. The water is only one issue. That thing is heavy and made out of metal. 5-6 lbs without the tape. In addition, there is nothing holding the tape roll. It just sits on some rollers. I just can't imagine that thing whizzing around a shell like that.

[schroedinger]

Sry had to change plans and will only have my pad during this weekend, so i can upload on monday.

[Col]

I use a wheatpaste/pva glue mix, its a lot thicker than water so it doesnt escape through amy tiny gaps or fly everywhere. You cant use a sponge with it as it gums it up. A simple glue box with rollers will apply it to both sides of the tape..If you build a slitter, the "tape" can be cut from a roll of virgin kraftpaper, which is stronger than the stuff used for normal gummed tape. Another bonus is the roll can be slit into any tape widths you want, even non standard ones.

[Col]

Here`s a few pics of my cheap `n` cheerful glue box. Cost less than a fiver to make from easy to find stuff and works great with gummed tape or plain slitted kraft. It features an adjustable tension control for the dry tape entering the box and an adjustable "doctor" bar on the exit to control the glue film thickness. The black gasket in the last pic is made from a bike inner tube, stuck to the polycarbonate using bostik (contact adhesive). The glue (a thickish blend of wheatpaste/pva) goes into a poly bag and the bag goes into the plywood box. Makes clean up easy and any unused glue can be saved by tying a knot in the bag.

 

https://www.youtube.com/watch?v=AHlc0zqQQWY&feature=youtu.be

Edited September 24, 2014 by Col

[Col]

Okay so I'm looking at making my own shell pasting machine. I'm currently tossing up between using lazy Susan bearings and making a pasting machine that spins on a horizontal axis, or the push bike wheel rim style vertical strapper.

Here`s a $100 pasting machine, all you need is a bandsaw and a steady hand.

 

 

I`ve built the wheel type and lazy susan type. The wheel type is better if you want to paste large shells otherwise its a tad overkill. The lazy susan type is a lot more compact and better for smaller shells. The LS bearing isnt great with offset radial loads and it tends to weave in/out a bit. The LS is easier/cheaper to build than the wheel type but you have to work to closer tolerances with the limited space above, inside and below the bearing.

[Bobosan]

I wondered when we would see that finished project, Col. Nice work!

[Col]

Cheers Bob, its been done for a while but i forgot to post an update.

Here`s a pic of the bottom end showing where the gluebox lives .The tape (aka plain slitted kraft) comes off the roll into the gluebox and up the hollow rectangular section to the tape arm. The odd gears in the pic are used to alter the gear ratio.

 

Edited November 12, 2014 by Col

[Bobosan]

If I am figuring the operation correctly, you wouldn't have needed teeth around the entire large wheel? Is the full 360 degrees swing necessary?

 

Belay that thought, I just ran through the operation in my head and yes, the full 360 is necessary. Doh!

[Col]

Aye, that big top gear drives everything

The way it works is the top gear, glue box/tape carrier are all one unit which rotates on a 25mm steel tube with an M20 threaded rod inside it (very rigid for zero wobble). Friction and play are taken out with 2x 25mm radial bearings and 2x 25mm thrust bearings. The primary gear at the bottom engages with an idler gear, these are mounted as a pair on a plate that can be pivotted in an arc to allow for different gears to be fitted. The last gear drives a vertical output shaft which couples through a straight connector and a universal joint to a high ratio steel worm drive which turns the shell.

 

Here`s an early test of the interchangeable gears, not easy to do with one hand

 

edit: sorry B, didnt realise, should be ok now

Edited November 13, 2014 by Col

[MrB]

Video clip = private

 

No show ;- )

B!

 

Edit

 

edit: sorry B, didnt realise, should be ok now

No worries. Thank you for sharing.

/Edit

Edited November 13, 2014 by MrB

[Bobosan]

Very clever, indeed! As I have mentioned before, nice wood crafting.

 

Do you have any vid of a shell pasting?

[Col]

I`ll sort you one out, plenty of shells to paste for NYE. I`ll get a vid of the tape/paper slitting contraption i came up with while i`m at it, 1/2" and 3/4" is non existant here.

[Zmuro]

I also have truble slitting the gummed paper rolls (70mm) to desired width. I made a machine myself but I have troubles with rewinding the paper once is't slitted.

[Col]

Hi Zmuro

I use a 24v wheelchair motor on the rewind drum. The cores (2" id) slide onto the 2" drum with spacers/guides inbetween ( old 7" vinyl records with a 2" hole). The cores are locked to the drum via an aluminium flat bar, 2" threaded tube cap/insert and a bolt/wingnut.

I run the motor on a 15v (10A) variable power supply, it draws less than 2A @ 15v and takes around 8 minutes to convert one 200m roll into four or six 200m rolls depending on the width.

Edited November 14, 2014 by Col

[Zmuro]

I have something similar built, but if you could share a picture of your machine or even a video of slitting I would really appreciate it.

[Col]

I`ll sort one out but its a pretty basic design, here`s the commercial (way overpriced) machine i used as a template

 

 

I went with 8mm T6 aluminium plate and 7/8 heavy wall aluminium tubes (also T6) mounted with 1/2" bolts. Similar cutting section design but i use a 2" aluminium tube with slits for the tape support where they use a rectangle with a vee cut in it.

[MrB]

I don't quite understand why you want to unwind it in the first place.Find, or make a thin wide blade knife, and cut the roll in half. Use the same technique the guy uses

, for cutting bundles of tubes rather then rolls of something. The knife action starts at around 5:10.

I've used a finely toothed bandsaw, but that creates waste, and imperfections, not to mention that not everyone has access to it.

B!

[Col]

A 200m roll of kraft is like a hardwood log, you`d really struggle to get through it with a knife