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#26

Dave63
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Joined: 23 October 2019
Posts: 121
Member
10 February 2020 05:22 pm

Mike678. I have no Idea. Depends on the ground. One of the blokes on this site says he doesn't stop test panning until he finds a spot where he thinks 1/2 oz in that time is possible.

Todays build

Finished bellows and made rear legs

1581315508_img_0160.jpg
1581315509_img_0161.jpg
1581315509_img_0162.jpg

Tomorrow Finish Hopper and Attach hopper to Bellows and make Front legs

Set to angle of 21 degrees

Last edited by Dave63 (10 February 2020 05:23 pm)

4 users like this post: Nightjar, Poida, Jackpot, thedigger

#27

Dave63
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Joined: 23 October 2019
Posts: 121
Member
10 February 2020 08:36 pm

Extra Picture

1581327366_img_0163.jpg

5 users like this post: Jaros, Manpa, Poida, Nightjar, Jackpot

#28

Nightjar
Member
From: Waikiki, WA
Joined: 26 September 2013
Posts: 1,554
Member
10 February 2020 11:23 pm

Dave,
You mentioned using a widscreen motor to drive your blower. Here are a few photos incorporating motor and wheels from a op shop skate board.

1581337033_windscreen_motor_001.jpg

1581337033_windscreen_motor_002.jpg

1581337034_windscreen_motor_003.jpg

Hacksaw the the aluminium housing leaving the steel shaft then cut in half. Using a length of flat bar twice the length of bellows stroke mount the wheels either end. Hole in centre to fix to windscren motor.

1581337034_windscreen_motor_004.jpg


Happy Hunting, Nightjar.

1 user likes this post: Moneybox

#29

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
11 February 2020 11:24 am

I am just going to connect my motor direct to the bellows via an arm. The knocking noise of this version of motor would drive me insane(Added vibration Good, Noise BAD). Other way nice and quiet

#30

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
11 February 2020 05:51 pm

G'Day All

Starting to look like something now.

Today
Attached Hopper
Rear Legs mod add extra bolt to support better. (Removable to allow rear legs to be removed)
Front Legs added (Top part comes off to save space and pack up with hopper. Bottom half folds up under Bellows)

1581403264_img_0164.jpg
1581403264_img_0165.jpg

Tomorrow

Add Gate to Hopper opening
Close Air Gaps to Bellows Box
Make Support for Hopper Large rock shield
Make Front leg feet like at bottom of Rear legs
Disassemble Riffle tray to remove Dead air spots

To Do

Hand crank system
Motor Crank System
Test and Modify ( I will video 1st run so we can all share the laugh as it fall to bits ) lol

Cheers

7 users like this post: Manpa, Poida, Prooz, Nightjar, Retirement Stone, Jackpot, Goldpin Prospecting

#31

Jaros
Moderator
From: S.E.Qld., QLD
Joined: 11 August 2013
Posts: 12,287
Moderator
11 February 2020 05:56 pm

Nice work. smile


F1A4M2, Exterra 705 Gold, Ace 250, Goldrat 8" Dreammat River Sluice.

#32

Prooz
Member
From: Cairns, QLD
Joined: 04 June 2014
Posts: 225
Member
11 February 2020 07:38 pm

Looking good


Minelab Explorer SE. Minelab GPZ 7000 Equinox 800

#33

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
12 February 2020 05:36 pm

G'Day All

Has been raining here for over a week. I am making a Dry Washer sad hmm

Today

Made front Feet
Added Fabric to bellows to cover Hinge gap and Added more silicon
Attach Hopper Gate
Attached Bellows Latch

Started Manual Bellows Crank
Over all it was a make it up as I go day. Wait it has been from the start
1581489281_img_0166.jpg
1581489281_img_0167.jpg
1581489282_img_0168.jpg
1581489282_img_0169.jpg

Tomorrow Continue with Hand Crank

Cheers

3 users like this post: Northeast, Nightjar, thedigger

#34

OldGT
Member
Joined: 10 May 2017
Posts: 1,194
Member
12 February 2020 06:09 pm

Cant wait to see you fire the Beasty up, looking schmiko mate. And just in time for sluicing season thumbsup perfect

Last edited by OldGT (12 February 2020 06:10 pm)

#35

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
13 February 2020 06:29 pm

G'Day All

Didn't get much done today All fiddly stuff

Might have to rebuild Riffle tray. Took it to bit to remove dead air zone, put it back together now it doesn't fit properly mad Bit of grinding tomorrow might fix it. If not pull it completely to pieces and start again. awful

Also today started manual hand crank. Bit crooked I can fix this.

1581578851_img_0171.jpg

Tomorrow fit Riffle tray
Hand crank

Cheers All

3 users like this post: OldGT, Nightjar, Jackpot

#36

Dave63
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Joined: 23 October 2019
Posts: 121
Member
14 February 2020 05:10 pm

G'Day All

Finished Hand crank today First run gold-nugget Gold clap

Ran some pay dirt from Durikai GPA through the Dry washer.

Found two micro specks of gold. goldpan gold-nugget

I have to run all that dirt through recirculating sluice now to see if there is more.

I video the run on my phone still trying to figure out how to get it onto Youtube

1581660160_img_0022.jpg
1581660161_img_0023.jpg

Gold at end of Pop Rivet and End of my finger.

Need to add Silk Screen fabric 200 Mesh as Nightjar said a lot of fine dust in bellows box.

Need to mount Motor now

Cheers

Last edited by Dave63 (14 February 2020 05:59 pm)

3 users like this post: thedigger, Jackpot, NUGS MONEY

#37

Nightjar
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From: Waikiki, WA
Joined: 26 September 2013
Posts: 1,554
Member
14 February 2020 08:57 pm

Dave,
Great piece of workmanship and you have the videos under control.
You have some changes to make other that what you already mentioned.

1: Your top hopper should have had a flat bottom so the feed is spread evenly as it drops onto the riffles. (You're mixing wet sluicing with dry blowing with your set up.) A dry blower correctly set up catches 90% of the gold in top two riffles.
2: As you mentioned the machine must be set up level crosswise. Feel certain you lost gold over the end of the riffles, it was definitely overloaded. While it is puffing you
should be able to see the outline of each riffle just covered in pay dirt.
3: Your bellows seems to be puffing sufficiently however towards the end of the video air was puffing dust way back from upside of riffles? At the end of your run there was
far too much dirt packed up on the upside. The slots below the cloth should be puffing air directly behind the upside of each riffle. Don't know the dimension of your dry
blower but would guess at the end of your run you should have no more than about one litre of dirt left on the riffle tray.
4: Finally a sure way to test your dry blower is to add a number of tiny pieces of lead to your pay dirt. Shot gun pellet (2mm) size are ideal. Do a run and when you return 9/10 your machine is ready for real action.

Good luck.
Peter


Happy Hunting, Nightjar.

4 users like this post: Northeast, thedigger, Jackpot, Moneybox

#38

Dave63
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Joined: 23 October 2019
Posts: 121
Member
14 February 2020 09:14 pm

I think I will make a different Hopper gate That spreads the dirt across the first riffle. Video didn't show it but I had a large minelab pan half full of material left.
I shoveled the already processed dirt back it and it ran ok. I did put two pieces of lead in big bits, I got them back. I also put 4 shootie pellets still to find those. I will make some mods and run again. Need more dry dirt from somewhere. MY riffles are 4" apart Might need to be closer together

2 users like this post: Northeast, Jackpot

#39

greyhound
Member
Joined: 15 July 2019
Posts: 265
Member
14 February 2020 11:00 pm

Out of curiosity ,what would it go like if you hook it up to an variable cordless drill?
I,m guess you are trying to stay within the boundaries/law of not being an electric device?
But out in the never never you would get away with it??

Last edited by greyhound (14 February 2020 11:01 pm)

#40

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
14 February 2020 11:24 pm

A drill would work. Battery time would be an issue. You still have to hold drill.

#41

greyhound
Member
Joined: 15 July 2019
Posts: 265
Member
14 February 2020 11:38 pm

True Dave,but with drills being cheap as chips and having multiple power packs
I would gladly hold a drill rather than trying to crank a handle,guess i,m a little lazy.
Maybe invent/design a drill holder for it

Last edited by greyhound (14 February 2020 11:39 pm)

1 user likes this post: Gem in I

#42

Nightjar
Member
From: Waikiki, WA
Joined: 26 September 2013
Posts: 1,554
Member
15 February 2020 10:18 am

Your riffle spacing looks perfect, just cut back on amount of feed. When perfecting operation lay a sheet of plastic on the ground and carefully spill the finished dirt off riffles so each bay is separate. Then pan each segment, when 90% of your finds are in the top 2 riffles you're winning.


Happy Hunting, Nightjar.

2 users like this post: Retirement Stone, Jackpot

#43

Dave63
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Joined: 23 October 2019
Posts: 121
Member
15 February 2020 02:11 pm

Made some Changes.

2 users like this post: Jaros, Jackpot

#44

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
18 February 2020 02:31 pm

Attached Motor

Got rid of perspex and made a new base plate where the only air that can move is directly in front of the riffles. If this is not enough I can drill holes further back until I reach optimum air pressure

1581996295_img_0175.jpg
1581996295_img_0176.jpg

Have to by a speed controller from Jaycar to control motor speed

Need to make a new rear plate for the riffle tray and put some angle plate to hold rear of riffle tray down and to stop dirt from falling down the back into Bellows box.

Just waiting on new cloth (Silk Screen 300 Mesh)

All this will have to wait a couple of weeks. I am heading down to Victoria for Niece's birthday then a week in Golden triangle. Never been there so I will wander around waving my detector everywhere.

Cheers

Last edited by Dave63 (18 February 2020 02:33 pm)

2 users like this post: Nightjar, NUGS MONEY

#45

Dave63
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Joined: 23 October 2019
Posts: 121
Member
16 March 2020 10:16 pm

G'Day All

I have been away at a niece birthday in Victoria. Met up with Goldman for a days training on the QED and Howard update firmware for me. Met up with Jackpot for a couple days. I found a .4 gram piece at WHROO using QED and Sadie. Heading to Tibooburra in April with Jackpot for a week or so.

Dry washer hand crank ready and decided to make a mini me dry washer to sample with before setting up big one. I figure I can save more water and it will be easy to carry around

1584357281_mini_me.jpg

So far made bellows box and Bellows flap. Riffle tray will be wood frame aluminum Riffles

Cheers

Last edited by Dave63 (16 March 2020 10:19 pm)

2 users like this post: greyhound, Jackpot

#46

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
19 March 2020 08:45 pm

G'Day All

Mini Me is taking shape

1584611088_mini_me_3.jpg

Cheers

4 users like this post: Jaros, Poida, Nightjar, Jackpot

#47

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
20 March 2020 09:52 pm

G'Day ALL

Main and Mini me Dry washers
1584701454_mini_me_and_me.jpg

Just have to add a pull rope to Bellows and a foot hold on rear legs to mini me, to stop it falling over when I am working the bellows
The riffle tray weighs as much as the rest of the dry washer. I will make one out of aluminum eventually once I prove it works

Cheers

Last edited by Dave63 (20 March 2020 09:55 pm)

#48

Nightjar
Member
From: Waikiki, WA
Joined: 26 September 2013
Posts: 1,554
Member
20 March 2020 11:37 pm

Dave, You're on a roll, cut down the depth of the top chute on both by about 90%, especially your larger unit too about the grey outline in pic..


Happy Hunting, Nightjar.

#49

Stingray
Member
Joined: 13 June 2016
Posts: 17
Member
21 March 2020 02:18 am

They look great. I would think about adding a mesh flap on the top of each of the open tops of the hoppers. When you shovel dirt onto the grizzly the mesh flap stops rocks overshooting and falling in over the top of the screen and blocking up the works.

I've worked out how to post photos so here goes. This is my little sampling kit, held together with bolts and wing nuts, breaks down easily and fits in a 20 litre bucket + legs. You can see the mesh I'm talking about. These photos were taken when I first put it together. I have tweaked it a lot since through trial and error, but it still looks basically like this and works a treat. Catches very fine gold too. My bigger dry blower and shovel is in the bottom photos. Nightjar would be familiar with the old Gold Wizard I would think. You can certainly eat a lot of dirt when you feed them with an excavator.

1584715076_img_1052.jpg
1584715006_img_1068.jpg
1584715978_img_0974.jpg
1584715721_img_1260.jpg
1584717056_img_2384.jpg
1584716470_img_2381.jpg

#50

Dave63
Member
Joined: 23 October 2019
Posts: 121
Member
21 March 2020 11:02 am

Nightjar I am not exactly sure on what you are talking about.

Thanks for advice Stingray. Nice country you are in there.


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