Coming Up Short

[Bert Kemp]

Good Morning everyone well todays problemghess does it ever end LOL anyway I cut a piece of velvet to line a box.and it came up short a1/4 inch all around. I measured twice and double checked the measurements in both corel and lasercut, they were rightn so any ideas why I came up short

[Dave Gates]

I had a similar problem where the file I was trying to engrave/cut was a different size. Somehow I had changed an option in Print Preview to "Fit to Page" instead of the "As in Document" option.

[Bert Kemp]

I have a Rabbit so don't know if that would apply to me, I don't see those options.

[Jerome Stanek]

did you try scoring a solid piece to see if the fabric shrunk when cut. Also did you have it set to cut to scale

[Joe Hillmann]

Did the velvet itself shrink because of the heat of the laser? Did you have it stretched tight when you were cutting it and and now that it is loose it shrunk?

[Mike Audleman]

I would cut a piece of paper and see if its the correct size. If it isn't there is something off in the file. If the paper is the correct size, then the fabric shrunk due to the heat of the cutting in which case I would drastically lower power and raise speed to curb heat damage.

I cut some synthetic silk and it shrank. I ran the speed to max and the power to minimum and bumped power up just until the fabric just barely cut and it came out much better.

Another thought, you might be getting bounce back from your plate/honeycomb/grid. Might put a cardboard or wood sheet underneath.

[Bert Kemp]

Lasercut was set to the size I wanted it to cut don't know about set to scale were is that setting located.?

[Bert Kemp]

it wasn't streched just laying loosely.

[Bert Kemp]

I'll try the paper. My settings are good for the material tho I just barley get a clean cut thru. running 70 spd 20 pwr

I would cut a piece of paper and see if its the correct size. If it isn't there is something off in the file. If the paper is the correct size, then the fabric shrunk due to the heat of the cutting in which case I would drastically lower power and raise speed to curb heat damage.

I cut some synthetic silk and it shrank. I ran the speed to max and the power to minimum and bumped power up just until the fabric just barely cut and it came out much better.

Another thought, you might be getting bounce back from your plate/honeycomb/grid. Might put a cardboard or wood sheet underneath.

[Bert Kemp]

I ran the paper test and as you can see its still short by approx 1/4 inch IMGP0002.JPGso what can be causing this??? Iguess its an 1/8 on all sides if I center the paper.

I would cut a piece of paper and see if its the correct size. If it isn't there is something off in the file. If the paper is the correct size, then the fabric shrunk due to the heat of the cutting in which case I would drastically lower power and raise speed to curb heat damage.

I cut some synthetic silk and it shrank. I ran the speed to max and the power to minimum and bumped power up just until the fabric just barely cut and it came out much better.

Another thought, you might be getting bounce back from your plate/honeycomb/grid. Might put a cardboard or wood sheet underneath.

[Bill George]

Are you working in Metric in Corel Draw and in the machine or converting over somehow?

[Scott Shepherd]

Maybe the box is coming up 1/4" too long.

[Bert Kemp]

I lost my box stretcher so I don't think thats it
and I convert it all to mm before I send to laser

Maybe the box is coming up 1/4" too long.

[Bill George]

I lost my box stretcher so I don't think thats it
and I convert it all to mm before I send to laser

Maybe the conversion is the problem. I have my CD set up in metric, also purchased a metric tape measure. Had to order it from McMaster Carr.

[Dave Sheldrake]

LaserCUT reads in units Bert, based on the metric system. Would the item be 8 inches long by any chance? (think 25.4mm to the inch not 25 units)

cheers

Dave