Cutting Prototype Lead Time for Hardware Startups
RTV prototype time starts at CAD lock, not the first email. Cut calendar by unmixing RTV vs LSR, finishing the pattern, and not cutting steel first.
Kyler Yang · Founder9 min read
If you are a hardware startup trying to cut RTV prototype lead time, the clock starts when the file is freeze-ready, not when the first email lands. Waiting is CAD lock, pattern finish, and the degas queue. You cut calendar by unmixing a pour cavity from an LSR part tool, finishing the pattern, and not cutting steel first to save time later. Prototype is usually 3-7 business days after CAD lock. That sentence is not a promise that an open logo loop still finishes this week.
On this site the path is photos, sketch, or CAD, then a 3D-printed pattern, often a temporary silicone flip, a resin production mother, then batch RTV. The mother is not the pattern. Free DFM. HTV/HCR compression mold tooling is also quoted on RUUIPON.
Rank the time-killers
Open millimetres, a moving logo, and an unwashed print that inhibits platinum eat more days than the pour itself. Free DFM exists so those fights happen before mix day. CAD revision about USD 50 when we edit your 3D is cheaper than a second mother. If your email still says "master, box, keys, jacket" as the expedite list, you are listing shop furniture.
A sequence that is actually shorter
Send photos, a sketch, or CAD. Freeze millimetres, logo depth, fill line, Shore band, and structure. Then 3D-print a pattern, often flip a temporary silicone tool, cast the resin production mother, pour batch RTV, dump the real material. One-cavity first. Production cavity count after the witness. Catalog copy that says CAD, then resin, then RTV - skipping the flip - treats the first hard copy as if it were already the production mother. We will not quote that shortened sentence as the shop path.
Common mix-up: expedite CNC on the wrong object
A lot of startups expedite steel or an LSR cell to save time later while they still need a pour cavity this month. Cutting steel first is how you buy two calendars. An HTV/HCR compression mold stays on a RUUIPON RFQ - do not pretend that tool is a same-week RTV prototype.
Typical shop values
Reference values only. Confirm material-specific limits against the supplier’s technical data and agree project acceptance criteria before production.
| Item | Typical shop value |
|---|---|
| Clock start | CAD lock - not the first email |
| Path | Photos / sketch / CAD, 3D-printed pattern, often a flip, resin production mother, batch RTV |
| Prototype | Usually 3-7 business days after CAD lock |
| Production | MOQ 20 pieces per design after the witness |
| DFM / CAD | Free DFM; about USD 50 when we edit your 3D |
| What does not shorten the clock | Cutting steel first; unwashed prints; moving logos |
Worked example: a 30-day shape (illustrative)
A startup needed a 40 mm enclosure button cavity to dump PU, then a later HCR gasket. Week one was free DFM and a CAD lock on the pocket only. After lock: pattern, often a flip, resin production mother, one-cavity platinum RTV, PU witness inside the 3-7 business day window. The HCR compression tool stayed a second RUUIPON RFQ. The finished gasket carton stayed an HTV product or mold RFQ here, or a different LSR-tool RFQ - ask us. Cutting steel in week one would have frozen the wrong object.
Stay on this page / skip this page
Stay when you need the RTV prototype clock explained before you buy expedite.
Skip if the CAD is still a mood board. Skip finished LSR/HCR parts - a different RFQ - ask us. Skip if you already know you need the compression tool - RUUIPON HTV/HCR mold RFQ, numbers after DFM.
We will not cut steel first to save time later. We will not start the 3-7 day clock on an unlocked logo. We will not quote CAD, then resin, then RTV-only as the shop path. We will not invent capacity or an HTV MOQ.
Related: how molds are made, contact.
What to send so the clock starts
- Photos, sketch, STL, or STEP of the pocket
- Dump material and peak temperature
- Whether a later part tool is even a maybe
- Logo face and depth; fill line
- Who can sign CAD lock this week
Send the freeze pack to [email protected] or contact. WhatsApp +86 135 3006 2969.
- Free DFM -> CAD lock
- CAD lock -> Pattern, often flip, resin mother, batch RTV
- Pattern, often flip, resin mother, batch RTV -> Witness in 3-7 business days typical
FAQ
When does the 3-7 day clock start? At CAD lock: millimetres, logo depth, fill line, Shore band, and structure signed. Not at the first email.
Can you expedite an unwashed print? We will not pour platinum against an unwashed, under-cured print. Wash / UV / barrier first. That time is on the clock if you locked an unfinished pattern.
Should we cut steel now to save time later? No. We will not cut steel first to save time later while you still need a pour cavity.
Is a 30-day story a promise? No. The 30-day shape above is illustrative. Typical prototype is 3-7 business days after CAD lock.
What is MOQ after the prototype? MOQ 20 pieces per design after approval. DFM is free. CAD revision about USD 50 when we edit your 3D.
Custom silicone development · DFM & prototype support
CAD, drawing, photos or sample details