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Search: Posts Made By: billfunk29
Forum: Automotive Projects 01-25-2019, 10:42 AM
Replies: 1,146
Views: 324,398
Posted By billfunk29
Casting shrink

Thin sheet wax is available and easy to add a uniform thickness to compensate for shrinkage....
Forum: Welding Sheet Metal 01-10-2019, 10:10 AM
Replies: 23
Views: 1,796
Posted By billfunk29
ali tacks

Thanks Bill. I will give that a try.

You mentioned Oxy/Hydrogen. Do you use tanks or a generator for your hydrogen?
Forum: Welding Sheet Metal 01-08-2019, 10:15 AM
Replies: 23
Views: 1,796
Posted By billfunk29
Flux and planishing.

Bill, you mentioned you gas tack and planish as you go. How do you deal with flux? I have tried TIG tacking but then can't get the flux on the edge between tacks. Also tried gas tacking with and...
Forum: General Discussion 01-02-2019, 11:18 AM
Replies: 3
Views: 397
Posted By billfunk29
square U bends

I have never been able to get square(or rectangle) thin wall tubes to bend without getting concave. I have not used a mandrel though. Never seen one, but it should be possible. If I want to have a...
Forum: Miscellanous products related to metalshaping 12-15-2018, 01:16 PM
Replies: 8
Views: 576
Posted By billfunk29
rubber molding

If you already have one, it doesn't look like a difficult mold.
https://www.smooth-on.com/products/fmc-200/
Forum: Heads Up Announcements 12-01-2018, 09:11 AM
Replies: 2
Views: 1,025
Posted By billfunk29
Mercedes replica

Anyone know who built this?
https://www.ebay.com/itm/1939-Replica-Kit-Makes-Mercedes-Benz-540K-Cabriolet-A-540K-Cabriolet-A/332913121843?hash=item4d832b1a33:g:nzcAAOSwbbJcAId2:rk:37:pf:0&vxp=mtr
Forum: Basic questions and answers 11-30-2018, 10:27 AM
Replies: 11
Views: 950
Posted By billfunk29
wire

I use 1/8" steel. Galvanized, if I can find it. Had luck with 8 gauge fence wire. Stainless wire will make your panel take on any corrosion effects....
Forum: General Discussion 11-29-2018, 10:47 AM
Replies: 5
Views: 433
Posted By billfunk29
Temporary adhesive

I like Crystalbond 555 because the residue comes off with water. I heat the part with a heat gun and put the Crystalbond on like a color crayon. Then put it on the substrate. You can't use water...
Forum: Basic questions and answers 11-15-2018, 10:11 AM
Replies: 5
Views: 687
Posted By billfunk29
TIG size

I use .o4" or 1/16" tungsten. More likely use the .o4" for tacking. I don't see much variation on gas cup unless I am outside, or by a draft inside. Typically a 3/8" opening. I use bigger...
Forum: General Discussion 11-10-2018, 09:13 AM
Replies: 11
Views: 1,095
Posted By billfunk29
rings

Depending on precision needed,you can do this with a hammer. Place the rod over a gap in a rigid item, like an open vise, or the step of an anvil. Hit in between the supports and the rod will come...
Forum: Basic questions and answers 11-07-2018, 06:13 AM
Replies: 7
Views: 721
Posted By billfunk29
1/8" shrink

I have bent 1/8"x 1.5x1.5 (6063)on a hand shrinker. Big radius though. I had to modify the jaws to get them to open up enough. I did it cold, but I think a little heat might make it work on a...
Forum: Basic questions and answers 10-31-2018, 10:22 AM
Replies: 14
Views: 1,433
Posted By billfunk29
Steel rod

When Peter came to Dan Pates, he also had a 5/8" steel rod bent like a slapper. Easy to make and very useful.
Forum: Welding Sheet Metal 10-25-2018, 10:58 AM
Replies: 9
Views: 1,189
Posted By billfunk29
Cleaning options

A couple options for cleaning airplane parts. I have used ultrasonics baths, mostly flux removal on brazed pitot tubes. Most machines are 40 kHz, which have lots of power, but the 100kHz machines...
Forum: Welding Sheet Metal 10-23-2018, 12:38 PM
Replies: 9
Views: 1,189
Posted By billfunk29
flux cleaning

I like this cheap little steam cleaner.
...
Forum: Automotive Projects 10-18-2018, 10:08 AM
Replies: 1,146
Views: 324,398
Posted By billfunk29
foam forming

Awesome project Jack. I have learned a lot. Thanks for taking to time to post all the details. When I rough out a surfboard, I use a cheap power planer. It is fast and pretty accurate, but the...
Forum: Automotive Projects 10-18-2018, 10:00 AM
Replies: 71
Views: 23,356
Posted By billfunk29
surface finish

Thanks for the explanation. I figured there was a lot of practice put into that. One trick I have found with engine turning is to use a guide to keep the rows straight but do the spacing by eye. ...
Forum: Automotive Projects 10-17-2018, 11:33 AM
Replies: 174
Views: 33,828
Posted By billfunk29
Plasma

I could never justify the space for a CNC plasma cutter. So I put a fiberglass(nonconductive) extension pole off the end of the CNC mill table. With a hand plasma torch attached, I can cut small...
Forum: Automotive Projects 10-17-2018, 11:19 AM
Replies: 71
Views: 23,356
Posted By billfunk29
Flaking

Haven't noticed machine tool flaking on a car before. (cam covers) Was that the original process? What is the theory behind the long handle on the scraper? I have always used a short one that...
Forum: Basic questions and answers 10-17-2018, 10:55 AM
Replies: 23
Views: 2,590
Posted By billfunk29
cones

sst at Mcmaster pn 45735K411, $12
Forum: Automotive Projects 10-15-2018, 10:06 AM
Replies: 1,146
Views: 324,398
Posted By billfunk29
Heating large sheets of plastic

This is messy and you have to be careful, but hot cooking oil can be used to soften plastic enough for forming. The heat is very uniform. If you make a box with the plastic sheet on the bottom, the...
Forum: Events 10-07-2018, 07:31 PM
Replies: 19
Views: 2,911
Posted By billfunk29
Great time

My second time at Steves meet in the North woods. Seems like I learn more every time I go to one of these. Steve is great host. Many Thanks.
Forum: Basic questions and answers 09-06-2018, 06:00 PM
Replies: 16
Views: 2,677
Posted By billfunk29
typo

My bad. 8 times h is correct. Spelling counts so often in life and I suck at it.
Forum: Basic questions and answers 09-05-2018, 06:35 PM
Replies: 16
Views: 2,677
Posted By billfunk29
Radius calculation

This may be easier for big arcs.
48673
Forum: Heads Up Announcements 09-05-2018, 06:17 PM
Replies: 1
Views: 1,251
Posted By billfunk29
Bandsaw for E-wheel

https://www.k-bid.com/auction/25757/item/1010?offset=10
Forum: Software for Metalshaping 09-05-2018, 10:12 AM
Replies: 1
Views: 2,254
Posted By billfunk29
Folding simulation software

This is a cool product to develop complicated folded (bending only) shapes in sheet materials.

https://www.foldstar.net/
One can quickly form an intuition on how complex shapes can be formed...
Showing results 1 to 25 of 129

 
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