Thoughts on Cerakoting a mountain bike frame

[Cgrutt]

So how do you cut cement board? Can I just score and snap it or is it better to cut with a grinder?

[Hunter]

So how do you cut cement board? Can I just score and snap it or is it better to cut with a grinder?

Score and break like sheet rock is probably the best way to avoid all the dust.

[Cgrutt]

Thanks that's what I did, it cut alot easier than I expected.

[Sailor Jerry]

surprised you did not use sheet metal, could be used as a farrady cage in the event of an EMP, LOL. The cement board might turn green or yellow depending on chemical vapors....

[Cgrutt]

Decided to use metal studs instead of pine for the structure. Here's where I'm at so far.



Studs will be stuffed with fiberglass insulation and capped with plywood. Two eight inch holes will be cut in bottom for heat source. Going to run a rod through top section and I bought a couple of steel peg boards that will put on back for hanging parts. Going to mount the thermo coupler to a bracket somewhere in middle back. Haven't figured out how I'm going to do the doors yet. Originally was going to have them swing open left and right but I might make them open up instead.

[masterswimmer]

Looking good bud.

You planning to seal the gaps at the seams? I'd use
3M High Temperature Flue Tape to insulate it from within.

[Cgrutt]

Thanks. Everything is sealed. Added a rod, the pipes for the heaters, some metal peg board to hang stuff and a box for the thermo coupler. Enough for tonight...

[Cgrutt]

Frame is done and it's insulated. Hopefully capping it tomorrow. This thing is turning out to be a Brick Peshitta-house, LOL...

[JVG]

Frame is done and it's insulated. Hopefully capping it tomorrow. This thing is turning out to be a Brick Peshitta-house, LOL...

I applaud your tenacity. Weren't a fan of the air cure color options?

[Hunter]

I hope the cement board can take the heat, I'd be tempted to glue sliced bricks to the interior with high temp silicone.

ETA: furnace cement is probably a better choice.

[Cgrutt]

I applaud your tenacity. Weren't a fan of the air cure color options?

Wait... what?




LOL, Really, I just wanted to work on a project, ha, ha... I've read the heat cured products are a stronger finish.

[Cgrutt]

I hope the cement board can take the heat, I'd be tempted to glue sliced bricks to the interior with high temp silicone.

ETA: furnace cement is probably a better choice.

It only needs to be 250 degrees, which is just warm by oven standards. I've used cement board as a backer with a wood stove and it was fine. Got much hotter than anything this will see.

FYI, I thought about tiling inside as well but don't think it needs it.

[Cgrutt]

Do any of you guys have experience with thermocouples? Measured temp is way too high -- it's measuring approx. 85 Celsius when it should be reading about 18 Celsius. There is a sensor compensation adjustment on the controller but shouldn't measured temp be closer to actual? I put a couple of loops in the sensor wire to allow for some room in case it needs to be changed and am not sure if this is adding in some error in the measured temp. I also mounted the thermocouple to a electric box cover but that shouldn't cause any problems, right? Or is it just normal to be off and use the sensor compensation adjustment to bring it closer to actual? Thanks.

[thughes]

Most of those controllers (PID) have a setting to use either a thermocouple (TC) input (typically a K type) or an RTD temp probe input (I use a PT 100). Do you have that option within the controller configuration settings and if so, is that setting correct?

I run this PID to control my brewing rig: http://www.auberins.com/index.php?ma...&products_id=3

[Cgrutt]

Yeah, I'm using a different controller but it basically looks identical. I'm using a K type thermocouple which is default and it's set correctly. I was just wondering if putting loops in the thermocouple wires introduced any error in the reading. I adjusted to correct temp through the sensor compensation adjustment but thought it should have been closer that what was needed.