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Need suggestions for ripping 4" PVC pipe in half

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Forum topic by jusfine posted 07-21-2010 03:11 AM 9220 views 0 times favorited 17 replies Add to Favorites Watch
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jusfine

2405 posts in 2392 days


07-21-2010 03:11 AM

Topic tags/keywords: cut pipe bandsaw question

I need to create short sections of “half pipe” for drainage through a pin on curb.

Figured I would cut the pipe to manageable lengths (about 6” or maybe double length 12”), then rip on the bandsaw.

Use a V shaped sled to cut them?

Ideas?

Use a wide resaw blade, 3 tpi narrow blade (1/4”)??

Any suggestions welcome, other than get someone else to do it… :)

I have a 16HD Laguna bandsaw to rip on, so I’m thinking it should be relatively quick job, anybody see any problems?

Thanks.

-- Randy "You are judged as much by the questions you ask as the answers you give..."


17 replies so far

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FirehouseWoodworking

689 posts in 2739 days


#1 posted 07-21-2010 03:32 AM

Randy,

You may want to check out the blog by our fellow LJ and gentlefriend Patron at:

http://lumberjocks.com/patron/blog/16636

He built a sweet jig – simple, functional, and elegant – to cut full lengths of PVC into rain gutters. You could probably pare it down and use a modification of Patron’s idea!

-- Dave; Lansing, Kansas

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GregD

783 posts in 2602 days


#2 posted 07-21-2010 03:34 AM

Whenever I’ve considered doing this sort of cut I get concerned that the pipe might rotate on me. What about putting the pipe on end? Maybe not so easy to get perfectly half pieces, but maybe that’s close enough?

-- Greg D.

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canadianchips

2360 posts in 2463 days


#3 posted 07-21-2010 03:37 AM

Make a V sled and use the mitre tack to run it in.Clamp your pipe into the sled and no worries about twisting.
Good luck.

-- "My mission in life - make everyone smile !"

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jusfine

2405 posts in 2392 days


#4 posted 07-21-2010 03:45 AM

Thanks guys! I will build the sled tonight and hopefully look like a hero tomorrow… :)

We need about 60 pieces, so that’s 30 @ 6” ripped in half. They need to be the same, so I have to get it right. I don’t think I can be real accurate cutting them on end, but maybe.

Will post pics if it works well.

-- Randy "You are judged as much by the questions you ask as the answers you give..."

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richgreer

4541 posts in 2541 days


#5 posted 07-21-2010 01:56 PM

This is one of those projects where taking the time to make a really good sled/jig is the hardest part and the most important part.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

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rance

4245 posts in 2627 days


#6 posted 07-21-2010 02:53 PM

Table Saw with a fence. Afix a square block to one end of the PVC to keep it from rotating and only cut one side at a time.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

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spclPatrolGroup

233 posts in 2361 days


#7 posted 07-21-2010 04:59 PM

FYI watch out for static electricity, I was cutting PVC pipe with an angle grinder one time and got a pretty nice shock, not enough to do any real damage, but enough to startle me when I was not expecting it and make me drop the tool.

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Nomad62

726 posts in 2424 days


#8 posted 07-21-2010 10:35 PM

Guess my thought was a bandsaw rather than a table saw. Dang, always wrong! Lol

-- Power tools put us ahead of the monkeys

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jusfine

2405 posts in 2392 days


#9 posted 07-22-2010 01:36 AM

Thanks everyone, I am finished! I appreciate all the input!

I first crosscut the pipe to 12” lengths.

Made a sled with 2 V shaped cleats, facing each other 12 1/4” apart. Dropped in the 12” pipe, ran it on the table saw next to the fence, flipped the pipe over and lined the cut up with a 90 mark from the bottom of the V. Ran it through the second time, and I had perfect halves.

Took them all back to the bandsaw, made another sled to hold the halves, set the fence 5 7/8 away, and cut them all to exact length.

Only thing is, my shop stinks now from the plastic smell…

-- Randy "You are judged as much by the questions you ask as the answers you give..."

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Nomad62

726 posts in 2424 days


#10 posted 07-22-2010 05:32 PM

Always more than one way to skin a…. well, you know the rest. Great pic shopguyrl, that’s a great tool; what type of wood is that? ;-)

-- Power tools put us ahead of the monkeys

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Belg1960

966 posts in 2531 days


#11 posted 12-10-2011 03:01 PM

Hey guys I need to do the same thing as Randy but don’t get the idea of the jig he explained can someone help me see the trees thru the forest? His solution is posted in #9 post. Thanks Pat

-- ***Pat*** Rookie woodworker looking for an education!!!

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jusfine

2405 posts in 2392 days


#12 posted 12-10-2011 05:45 PM

I could draw it for you easier than explain it I think. See if this helps…

Its a crude drawing, but I have to get to work, if you need a better one, PM me and I will try to help!

The long line through the sketch is where the blade cuts, it put this sled against the fence and raised the blade enough to cut through the pipe.
The 90 degree line is to reference after your first cut – clear like mud?

It did stink up my shop…

-- Randy "You are judged as much by the questions you ask as the answers you give..."

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Belg1960

966 posts in 2531 days


#13 posted 12-10-2011 05:52 PM

Randy, I pretty sure I got it now. I had the “v” groove completely different in my head yours are just applied pieces to another piece of wood. Thanks buddy

-- ***Pat*** Rookie woodworker looking for an education!!!

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MrRon

3926 posts in 2710 days


#14 posted 12-10-2011 06:04 PM

Try a length of wood with double stick tape to hold the PVC. Run the whole thing through the band saw.

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longgone

5688 posts in 2775 days


#15 posted 12-10-2011 06:06 PM

Great idea. Your drawing is like a mini crosscut sled with the “V” added.

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