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Double Sided Tape Failure - Bill Holt - 10-23-2017
My first two attempts to turn an "emerging bowl" ended with tape failure. I turned the half sphere and separated the blocks. I mounted the block with tape and supported the half sphere with three wedges on tape. I used clamps and tail stock pressure to "set" the tape. In the first attempt, I had stopped to check the depth. Depth was perfect, all I needed was to clean the little nib in the bottom. Turned the lathe on and before I could pick up the tool, I noticed a "ghost"; instantly the block flew off. There was no catch. I'm not sure where that role of tape came from so "maybe the tape is bad" I thought.
On the second one I used a newer role of "turner's tape" and went through the same steps but failure happened shortly after I started hollowing the bowl at a slower speed.
The face plate is Baltic Birch and very clean. Okay, I am ready to hear from you, what did I do wrong?
RE: Double Sided Tape Failure - Wildwood - 10-23-2017
Everything know about using double-side tape; mating surfaces must be perfectly flat. Wedges & tape didn’t work so not sure what to tell you.
RE: Double Sided Tape Failure - Arlin Eastman - 10-23-2017
(10-23-2017, 09:24 AM)Bill Holt Wrote: My first two attempts to turn an "emerging bowl" ended with tape failure. I turned the half sphere and separated the blocks. I mounted the block with tape and supported the half sphere with three wedges on tape. I used clamps and tail stock pressure to "set" the tape. In the first attempt, I had stopped to check the depth. Depth was perfect, all I needed was to clean the little nib in the bottom. Turned the lathe on and before I could pick up the tool, I noticed a "ghost"; instantly the block flew off. There was no catch. I'm not sure where that role of tape came from so "maybe the tape is bad" I thought.
On the second one I used a newer role of "turner's tape" and went through the same steps but failure happened shortly after I started hollowing the bowl at a slower speed.
The face plate is Baltic Birch and very clean. Okay, I am ready to hear from you, what did I do wrong?
Bill
The tape works great for regular turning, but not with off sided turning. To me personally I would use a glue block on/or hot glue. The tape to me does not work really well turning on the side of it either unless the wood is really dry and has a good flat space which will hole it great and with that I also clamp it tight to the wood with either clamps or the tail stock
RE: Double Sided Tape Failure - chips ahoy - 10-23-2017
I have had good luck with turners tape fro Lee Valley.
Mel
RE: Double Sided Tape Failure - Bill Holt - 10-23-2017
I saw a video where the guy used tape so that's what I tried; I don't have a glue gun.
The surfaces were as flat as a woodworker can get them.
The turning was for this month's challenge at our club. I have a lot of hours in the project and it frustrates me not to be able to finish. Starting over is not appealing. I may have to buy a glue gun.
RE: Double Sided Tape Failure - MichaelMouse - 10-24-2017
(10-23-2017, 08:34 PM)Bill Holt Wrote: I saw a video where the guy used tape so that's what I tried; I don't have a glue gun.
The surfaces were as flat as a woodworker can get them.
The turning was for this month's challenge at our club. I have a lot of hours in the project and it frustrates me not to be able to finish. Starting over is not appealing. I may have to buy a glue gun.
Tape and porous surfaces are not a great option. Try getting those surfaces flat as possible and sealing them with shellac prior to taping.