Tips on cutting lead block?

Use this area for aviation related general discussions, newsworthy items, and non model specific topics.

Tips on cutting lead block?

Postby samiam » Tue Jan 23, 2018 11:00 pm

Wondering if anyone has any helpful tips on cutting the lead blocks for the aileron counterbalance. I'm thinking of trying the bandsaw with a wood cutting blade, with plenty of wax. I read that it can bind up and get stuck in the lead, but I don't know that I have any better options/plan.
Mike L
Sonex #1345
Tail complete
Working on wings
samiam
 
Posts: 209
Joined: Thu Oct 03, 2013 7:24 am
Location: S37

Re: Tips on cutting lead block?

Postby mike.smith » Tue Jan 23, 2018 11:38 pm

I think the band saw was what I used. During my build I only had a metal cutting blade in my saw.
Mike Smith
Sonex N439M
Scratch built, AeroVee, Dual stick, Tail dragger
http://www.mykitlog.com/mikesmith
mike.smith
 
Posts: 1409
Joined: Tue Jan 29, 2013 8:45 pm

Re: Tips on cutting lead block?

Postby WaiexN143NM » Tue Jan 23, 2018 11:46 pm

Hi guy,all,
I used my small Ryobyi table saw with a metal cutting blade. Drew a black felt tip line corner to corner. Safety glasses and gloves. Cut like butter. Lots of chips. The pieces came out perfect , cut line smooth, fit the alum. Support bars perfect. Blade width about 1/8 in. A band saw would work , but maybe a metal cutting blade?

WaiexN143NM
Michael
Last edited by WaiexN143NM on Wed Jan 24, 2018 4:07 am, edited 1 time in total.
WaiexN143NM
 
Posts: 1155
Joined: Mon Sep 15, 2014 1:04 am
Location: SF CA, Tucson AZ, palm springs CA

Re: Tips on cutting lead block?

Postby wlarson861 » Wed Jan 24, 2018 1:41 am

I used a Harbor Freight three wheel band saw with a 14 tpi blade and lots of candle wax. It cut easily and took a small kerf. The wood band saw has been used by many builders with no problems. Use lots of wax and go slow, you'll be fine.
Bill Larson
N861SX
Sonex, polished, tail wheel, Generation 4 Jabiru 3300
wlarson861
 
Posts: 497
Joined: Wed Dec 05, 2012 11:41 pm

Re: Tips on cutting lead block?

Postby Area 51% » Wed Jan 24, 2018 8:48 am

A band saw blade that is made for metal is not going to be your friend. Tried to use the one I was cutting aluminum with. It will plug up chop-chop. I used a wood blade I had on hand (don't remember the tooth count, but it was coarse). Didn't use any wax (didn't have any), so I did have to stop and clear the teeth often. Good results in the end though.
Area 51%
 
Posts: 731
Joined: Thu Feb 18, 2016 7:57 am

Re: Tips on cutting lead block?

Postby samiam » Thu Jan 25, 2018 7:29 am

Report: My bandsaw with wood-cutting blade worked perfectly and easily. Must remember to avoid analysis paralysis.

Of note to future lead cutters/drillers: the was is absolutely essential. Taking the time to re-wax the blade/bit every few seconds makes the job so much easier and cleaner.
Mike L
Sonex #1345
Tail complete
Working on wings
samiam
 
Posts: 209
Joined: Thu Oct 03, 2013 7:24 am
Location: S37

Re: Tips on cutting lead block?

Postby Bryan Cotton » Thu Jan 25, 2018 10:43 am

Don't pilot drill lead with small bits. A #40 will give you grief!
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5033
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Tips on cutting lead block?

Postby Stogie6 » Thu Jan 25, 2018 1:39 pm

If cutting is too difficult, make a form and melt it into what you need it to be. Then go from there. Maybe.
David F. Jones
Memphis (Mud Island), TN
Aerovee powered Onex
N153TD
Based at KAWM and in the midst of Phase 1
User avatar
Stogie6
 
Posts: 132
Joined: Sun Jan 06, 2013 11:36 am

Re: Tips on cutting lead block?

Postby WaiexN143NM » Thu Jan 25, 2018 3:03 pm

Hi all,
Good to hear a 'wood' bandsaw blade works well for cutting the lead. One question for the guys who did this and used wax, are you rubbing wax on the sides and or teeth of the blade? Or are you using a candle (lit) and using liquid wax at the cut line? I'm sure a helper during this process would make it much easier .

WaiexN143NM
Michael
WaiexN143NM
 
Posts: 1155
Joined: Mon Sep 15, 2014 1:04 am
Location: SF CA, Tucson AZ, palm springs CA

Re: Tips on cutting lead block?

Postby kmacht » Thu Jan 25, 2018 4:15 pm

I have always just rubbed the candle on each side of the blade. You are trying to keep the sides of the blade from rubbing on the kerf of the cut to reduce friction, not trying to lubricate the teeth doing the actual cutting. A slow feed is also good to keep heat down and allow the teeth to clear the chips from the cut.

Keith
#554
kmacht
 
Posts: 756
Joined: Tue Jun 21, 2011 11:30 am

Next

Return to General Discussion

Who is online

Users browsing this forum: Bing [Bot] and 12 guests