CTC / Flashforge: 1/4" Glass plate holder

thingiverse

I wanted to print on a glass plate using my CTC Dual since I had torn the pre-installed Kapton tape on the aluminum heated bed. I liked 4KoeTTer's design but living in the US made it hard for me to get the Metric picture frame glass he designed for. I didn't want to use just 2mm thick glass so I decided to use thicker glass that's easily available in the USA. I chose 1/4" thick (about 6mm) 12in square mirror tiles from Home Depot, which I cut down to the 240mm x 140mm dimensions of the original design. Note that due to the thicker clamp you'll need longer bolts for the glass clamp in my re-mix. Ideally they'd be 24mm long but I only had 20's (too short) and 26's (too long), so I'm using 26's with 6 washers, LOL! Here's the relevant part of 4KoeTTer's original text, translated to English and tweaked a bit for my re-mix: He designed the dimensions for a picture frame size of 240x180 but this size isn't available in the USA. I bought some 12" square Mirror tiles from Home Depot and cut them down to approximately 240mm x 180mm. It's very easy to do this with a glass cutter and a straightedge. Note that with my re-mix, the "Active Duct V2" touches the clamps just a little bit but that is probably due to my E3D Hotend setup - So I'll probably do a variant of the clamps to be slightly thinner to keep this from happening. Caution: Don't forget to tighten the bed screws down before attempting to level the bed - before your first print on glass. And even then, with 1/4" glass, you may have to adjust the Z axis Min end-stop to get a couple more MM of clearance! Required Hardware: 4x countersunk screw ISO 10642 M3 x 16 (The stock screws are too short to use these mounts) 4x hexagonal M3 nuts (Can usually re-use the ones on the corner mounts already) 2x self-locking hexagon M3 nuts 2x Hex-Head M3 x 24 screws (if they even make 24mm long screws - I used 26mm and 6 washers to 'shorten' them to ~24mm) Print Settings: Printer: CTC Dual Rafts: No Supports: Yes Resolution: .25mm Infill: 50% Notes: This part should be printed in ABS, as other plastics (PLA and PETG for example) will soften too much when printing ABS parts with a heated bed! Supports are needed to support the overhangs, or the quality will suffer a lot!