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18-36 Craftsman Drum Sander -More info needed please

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Forum topic by gfadvm posted 12-18-2011 04:05 AM 2114 views 1 time favorited 18 replies Add to Favorites Watch
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gfadvm

11246 posts in 1381 days


12-18-2011 04:05 AM

Topic tags/keywords: drum sander 18-36

My buddy delivered the drum sander today but no manual. The model # is 351215180 and I can’t find a manual on the net? I’m also confused about the HP. The plate on the front of the sander says: “3 HP (maximum developed)” while the plate on the motor says 1 1/2 HP. What’s up with this? I need to fix the casters on the base and then it seems ready to use. I would like the manual for reference and to see if it tells how long and what angle to cut paper for it. I can figure this out but may trash some paper in the process. Any help is appreciated!

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm


18 replies so far

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Grandpa

3190 posts in 1366 days


#1 posted 12-18-2011 04:22 AM

I think this motor will run at continuous duty and produce 1.5 hp. It is capable of developing 3 hp for a short period of time then it will probably begin to smoke. Don’t let the smoke out or it will stop.

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gfadvm

11246 posts in 1381 days


#2 posted 12-18-2011 04:59 AM

Jonathan, Thank you so much. I’ll order it on Monday and hope I never need it! Grandpa,?? I don’t get it.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Grandpa

3190 posts in 1366 days


#3 posted 12-18-2011 05:19 AM

There was a time when manufacturers labeled motors in that fashion. earlier 1.5 hp meant it developed 1.5 hp and you used it in those applications. Later that got all funky with motor ratings and then they labeled them as 1.5 hp – 3 hp max. Now they label them as 3 hp. I wish they had stayed with the truth. I believe that has a continuous duty cycle of 1.5 hp. It can develop 3 hp at start up and if left in that mode under a load I think it will burn up shortly. Look around at some tools that are 25 years old and see if you don’t notice many motors labeled like that. Some manufacturers also listed that as peak hp. you are worried about continuous duty ratings. That is the real world.

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gfadvm

11246 posts in 1381 days


#4 posted 12-18-2011 05:23 AM

Thanks Grandpa, I understand now.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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rance

4142 posts in 1851 days


#5 posted 12-18-2011 05:26 AM

1) Tear both plates off and throw them in the trash.
2) Fix the casters.
3) Use it and don’t bog it down. Lest the magic smoke will escape.

To load your sandpaper:
  • Cut a strip of white paper the same width as your sandpaper.
  • Wrap it around, pretending you are installing your sandpaper.
  • Put a line on adjacent edges.
  • Unroll it and connect the two marks where they intersect the edge of the paper.

This will show you the exact angle.

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

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gfadvm

11246 posts in 1381 days


#6 posted 12-18-2011 06:10 AM

Rance to the rescue AGAIN! Thats why you are my LJ buddy. What a simple solution! Now, if my 10” uses 5’ of 3” belt, will my 18” use 9’? That’s what I came up with using Okie math.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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rance

4142 posts in 1851 days


#7 posted 12-18-2011 06:19 AM

Your Okie math will only work if they both have the same diameter drums.

Oh, and that paper trick, I got it from someone else. I rarely come up with tricks on my own. :) I sure can enhance and embelish though.

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

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gfadvm

11246 posts in 1381 days


#8 posted 12-18-2011 06:43 AM

I’ll check the diameter in the AM. If they’re not the same, you’ll be hearing from me! Thanks.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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rance

4142 posts in 1851 days


#9 posted 12-18-2011 06:56 AM

Huh? I can’t hear you. And I don’t think speaking louder will help. Seriously, I have no idea on how to calculate for the spiral. I’d just take and lay a strip of paper(or upsidedown sandpaper) on the drum and measure it. I only know Okie math.

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

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gfadvm

11246 posts in 1381 days


#10 posted 12-19-2011 03:55 AM

Whoa! They are proud of those belts aren’t they. I appreciate the links (and the time you took to hunt them up for me) but I think I’ll cut my own. I can get 50 yards of paper for $50 from Supergrit.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Guss

94 posts in 1132 days


#11 posted 12-19-2011 04:40 PM

I Think that the grizzly sander is almost the same. thing try this manual it has a lot more info than the craftsman. there is also a diagram on making a sanding belt jig to cut the sandpaper.
http://cdn0.grizzly.com/manuals/g0458_m.pdf

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gfadvm

11246 posts in 1381 days


#12 posted 12-20-2011 04:46 AM

The sanding strips they sell for this unit are 2” so I won’t be buying those for a pattern. I finally got it loaded with 3” that I cut after some trial and error. The Okie math didn’t work as my strips are several inches shorter than the 108” I calculated??? Now as soon as I get the manual to figure out the drive belt tracking, I’m in business (I hope). I got the casters fixed and working smoothly and built a storage shelf with a Shipwright hinge box to store paper strips and etc. Just waiting on the manual. Guss- Thanks for trying but the Grizz is very different: the drum is stationary and the feed table moves up and down on theirs.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Stargazer

49 posts in 1630 days


#13 posted 12-22-2011 04:07 PM

Whatever you do don’t overload this machine. It is not a planer and will take off only small amounts of stock. Actually it is very whimpy for a machine with a Delta label on it. If you try to take too much or run the stock through too fast the conveyor motor will trip the it’s breaker. I finally took my breaker out it kept tripping all the time. Take a very small amout of stock off as you run, maybe between 1/32 to 1/64 or less depending on the width and the spieces. This takes considerately more time but it beats burn marks or gouges from the conveyor motor stopping while the drum is still sanding away.

The conveyor belt is adjusted with the two set screws located on the infeed side of the table. Mine takes constant adjustment. It is a fine line between a too loose belt slipping and a too tight belt stalling the conveyor motor. Make sure your table is flat and parallel to the drum. You also MUST use a dust collector.

Another very important thing to watch for. The drum is hollow and after a few hours of sanding dust will begin to build up inside the hollow drum. This causes two problems. The first being the balance of the drum, the second being this dust acts as insulation and does not let the drum run cool as it should. Soon you will see beautiful burn streaks coming out on your work piece and the smell will be most delightful, especially maple. A good blast from the air hose once in a while will go a long way to avoiding this. This will destroy an expensive piece of sandpaper.

I’ve had my machine over 10 years now and use it mainly for my cabinet business. Once you learn it’s limitations it will do the job, albeit very slow. Think lighter on your paper too, 80 grit on this maching is very aggressive and leaves heavy scratch marks. I use mostly 100 to 150.

BTW, the Delta table also moves while the drum stays stationary as per the Griz.

Rick

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gfadvm

11246 posts in 1381 days


#14 posted 12-23-2011 03:39 AM

Stargazer, Thanks for the comments but: This is not a Delta drum sander, the tracking adjustments are on the OUTFEED side, and I am very aware of the importance of taling very light passes. I bought this used CRAFTSMAN to augment my smaller Jet. So far I’m happy with it but wish I could get the feed belt tracking dialed in better. This may be a drum sander characteristic as it seems I always have to tweak the tracking on my 10/20 Jet. I was in hopes this one would be friendlier.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Stargazer

49 posts in 1630 days


#15 posted 12-23-2011 04:31 AM

Oh, guess I look llike an idiot. That shows we must not assume. Hope you get it working good.

Rick

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